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HP 37717C Скачать руководство пользователя страница 139

3-30

Performance Tests

Multiple PDH Transmitter Outputs (Options UHC, [US6])

66. Select the 34Mb/s G703 Mask on the oscilloscope and store it on the Display.

67. Press SHIFT

on the oscilloscope to automatically align the pulse

to the mask. Verify that the pulse falls within the mask as shown in Figure 3-18.

N OT E

If your oscilloscope does not have the Mask feature, obtain a printout of the displayed
pulse. Place the mask shown in Figure 3-18 over the pulse and ensure that the pulse
falls within the mask (a transparent copy of the mask should be used).

Figure 3-18

34 Mb/s Pulse Mask

68. Repeat steps 64 to 67 with the Oscilloscope Channel 1 connected to SIGNAL
OUT 3 and SIGNAL OUT 4 in turn.

69. Press

on the oscilloscope to display the full waveform and use the

following sequence to display the isolated negative pulse:

Select

menu.

Set trigger level to middle of negative pulse.

Set Trigger to P

ATTERN

.

Set Sequence to H X X.

70. Use the oscilloscope

function to display an inverted pulse

mask on the oscilloscope.

AUTOSCALE

AUTOSCALE

TRIG

STORE INVERT

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Содержание 37717C

Страница 1: ...ble You will find any other available product information on the Agilent Test Measurement website www tm agilent com HP References in this Manual This manual may contain references to HP or Hewlett Packard Please note that Hewlett Packard s former test and measurement semiconductor products and chemical analysis businesses are now part of Agilent Technologies We have made no changes to this manual...

Страница 2: ...HP 37717C Communications Performance Analyzer Calibration Manual ...

Страница 3: ...Printed in U K Documentation Warranty The information contained in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this material including but not limited to the implied warranties or merchantability and fitness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential d...

Страница 4: ...Calibration Manual HP 37717C Communications Performance Analyzer HP Part Number 37717 90435 Printed in U K November 1998 ...

Страница 5: ...2 ...

Страница 6: ...7717C 1 6 Using both arms to lift instrument 1 6 Safety Symbols 1 7 Operators Maintenance 1 8 Cleaning 1 8 Cabinet Cleaning 1 8 Optical Connector Cleaning 1 8 Power Supply Fuse Replacement 1 9 Statement of Compliance 1 10 Australian EMC Regulations 1 10 Noise Declaration German 1 10 Electromagnetic Compatibility 1 11 Electrostatic Discharge 1 11 Specifications 1 13 Unframed PDH Option UKK 1 13 Str...

Страница 7: ...STM 4c Overhead Option 131 1 38 STM 0 STM 1 STM 4 OPTICAL INTERFACE 1310 1550 nm with STM 4c Overhead Option 130 1 40 SDH Binary Interface Option 0YH 1 42 MEASUREMENTS and ANALYSIS 1 54 UNFRAMED PDH Option UKK 1 55 SDH Option US1 1 57 JITTER Options UHN A1M A1N A1P A3L A3V and A3N 1 62 ATM Measurement Option UKN 1 62 Recommended Test Equipment 1 67 2 Installation Initial Inspection 2 1 Operating E...

Страница 8: ...15 10 Base T Lan Connection Radiated Emissions 2 15 Hewlett Packard Interface Bus 2 16 HP IB Address Selection 2 17 Additional Precautions for Service Engineers 2 18 Safety Precautions 2 18 ESD Precautions 2 18 3 Performance Tests Introduction 1 Equipment Required 1 Extra Modules Required 1 Performance Test Record 1 Calibration Cycle 1 Recall Default Settings 2 Self Test All Options 3 Description ...

Страница 9: ... 22 Equipment Required 23 Procedure 23 704 kb s Output Pulse 23 704 kb s Additional Outputs Delay 24 2 048 Mb s Output Pulse 25 2 048 Mb s Additional Output Delay 27 8 448 Mb s Output Pulse 27 8 448 Mb s Additional Output Delay 29 34 368 Mb s Output Pulse 29 34 368 Mb s Additional Outputs Delay 31 139 264 Mb s Output Pulse 31 Additional Outputs Delay at 139 264 Mb s 34 PDH Frame Analysis Options U...

Страница 10: ...t Required 43 Procedure 44 704 kb s 44 2 048 Mb s 45 8 448 Mb s 46 34 368 Mb s 46 139 264 Mb s 46 PDH Receiver Monitor Levels Options UKK USB 47 Specification 47 Description 47 Equipment Required 47 Procedure 47 704 kb s 48 2 048 Mb s 49 8 448 Mb s 49 34 368 Mb s 49 139 264 Mb s 49 SPDH Receiver Monitor Levels Options UKJ USA UKL USC UKN USE 50 Specifications 50 Description 50 Equipment Required 5...

Страница 11: ... Procedure 63 PDH Receiver Monitor Levels Special Option 808 68 Specification 68 Description 68 Procedure 68 704 kb s 69 2 048 Mb s 70 8 448 Mb s 70 34 368 Mb s 70 139 264 Mb s 70 PDH Error Output Options UKK USB 71 Specifications 71 Description 71 Equipment Required 71 Procedure 71 Error Output Signal 72 PDH Frequency Measurement and Looped Clock Options UKK USB UKJ USA UKL USC UKN USE 73 Specifi...

Страница 12: ...79 Procedure 79 External MTS Clock Options US1 US5 A1T A1U A3R A3S 120 82 Specifications 82 Description 82 Procedure 82 External MTS 2MHz Clock 82 External MTS 2MHz Data 83 BITS 1 5 Mb s Option 120 only 83 External MTS 64k Clock 84 STM 1 RX 84 84 STM 1 Transmitter Output Waveshape Options US1 US5 A1T A1U A3R A3S 120 85 Specifications 85 Description 85 Procedure 85 STM 1 Receiver Monitor Input Opti...

Страница 13: ... A1U A3R A3S 120 97 Specification 97 Description 97 Procedure 97 STM 1 Optical Interface Option UH1 98 Specification Transmitter 98 Specification Receiver 98 Description 98 Equipment Required 99 Procedure 99 STM 1 STM 4 Optical Interface Option UH2 101 Specification Transmitter 101 Specification Receiver 101 Description 101 Equipment Required 102 Procedure 102 STM 1 STM 4 1550nm Optical Interface ...

Страница 14: ...Description 117 Procedure Option 130 and 131 118 Procedure Option 130 only 121 Transmitted Jitter Amplitude Accuracy Option UHK 125 Specifications 125 Description 126 Equipment Required 126 Pre Adjustment Setup 126 Procedure 127 Transmitted Jitter Wander Amplitude Accuracy Option A3K A3Q 132 Specifications 132 Jitter Generation 132 Amplitude Range 132 External Jitter 133 Wander Generation 133 Wand...

Страница 15: ... A3N A3P 149 Specifications 149 Overall Accuracy See main specifications in Section 1 149 Description 149 Equipment Required 149 Received Jitter Accuracy Procedure 150 Hit Count 151 Demodulated Jitter Output 152 Wander Slips Measurement Options UHN US9 A1M A1Q A1N A1R A1P A1S A3L A3M A3V A3W A3N A3P 153 Specifications 153 Timing Reference Input 153 Wander Measurement 153 Description 154 Equipment ...

Страница 16: ...cal Interface Options A1P A1S A3N A3P 165 Specification 165 Description 165 Equipment Required 165 Procedure 166 PDH Binary Interfaces Option UH3 US7 168 Specifications 168 Description 169 Procedure 169 External Clock Thresholds 169 External Clock Mark to Space Ratio 172 ETSI ANSI Internal Transmitter Clock Rates Option UKZ 176 Specification 176 Description 176 DS3 Frequency Accuracy 176 E1 2 048M...

Страница 17: ...ns 190 Description 190 2 048Mb s Equalization 190 34 368 Mb s Equalization 191 DS3 Equalization 192 DS1 Equalization 193 ETSI ANSI Receiver Monitor Levels Option UKZ 194 Specifications 194 Description 194 2 048Mb s 20dB Monitor 195 2 048Mb s 26dB Monitor 196 2 048Mb s 30dB Monitor 196 34 368 Mb s 20dB Monitor 196 34 368 Mb s 26dB Monitor 197 DS3 20dB Monitor 198 DS3 26dB Monitor 198 DS1 20dB Monit...

Страница 18: ...escription 209 Procedure 209 STM 1 STS 3 Receiver Monitor Input Options A1T A1U A3R A3S 120 215 Specification 215 Description 215 Equipment Required 215 Procedure 215 STM 1 STS 3 Receiver Input Equalization Options US1 US5 A1T A1U A3R A3S 120 217 Specification 217 Description 217 Procedure 217 ETSI ANSI Internal Transmitter Clock Rates Option 110 218 Specification 218 Description 218 E3 34 368Mb s...

Страница 19: ...gative Pulse 226 DSX 1 Positive Pulse 227 DSX 1 Negative Pulse 228 ETSI ANSI Receiver Equalization Option 110 229 Specifications 229 Description 229 34 368 Mb s Equalization 229 2 048Mb s Equalization 230 DS3 Equalization 231 DS1 Equalization 232 ETSI ANSI Receiver Monitor Levels Option 110 233 Specifications 233 Description 233 Equipment Required 233 Procedure 234 2 048 Mb s 235 1 544 Mb s DS 1 2...

Страница 20: ...I Equivalent Terms 4 1 Current Previous Terminology 4 3 Retrofit Procedure B 4 Testing B 5 Jitter Transmitter Module Calibration B 6 Description B 6 Equipment B 6 Pre Adjustment Setup B 6 Jitter Transmitter Calibration Procedure B 7 ...

Страница 21: ...xviii Contents ...

Страница 22: ...ill be uninterrupted or error free If HP is unable within a reasonable time to repair or replace any product to a condition as warranted customer will be entitled to a refund of the purchase price upon prompt return of the product 4 HP products may contain remanufactured parts equivalent to new in performance or may have been subject to incidental use 5 The warranty period begins on the date of de...

Страница 23: ...NSUMER TRANSACTIONS IN AUSTRALIA AND NEW ZEALAND THE WARRANTY TERMS CONTAINED IN THIS STATEMENT EXCEPT TO THE EXTENT LAWFULLY PERMITTED DO NOT EXCLUDE RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU Responsibilities of the Customer The customer shall provide 1 Access to the products during the specified periods of coverage to p...

Страница 24: ...Notice The information contained in this document is subject to change without notice Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be ph...

Страница 25: ...h Hewlett Packard especially when ordering replacement parts Serial Number Plate Storage and Shipment The instrument may be stored or shipped in environments within the following limits Temperature 20o C to 70o C 15o C to 50o C with lid printer Altitude Up to 15 200 meters 50 000 feet The instrument should also be protected from temperature extremes which could cause condensation within the instru...

Страница 26: ...in heavy paper or plastic If the instrument is being shipped to Hewlett Packard attach a tag indicating the type of service required return address model number and full serial number Use a strong shipping container A double wall carton made of 350 pound test material is adequate Use a layer of shock absorbing material 70 to 100 mm 3 to 4 inch thick around all sides of the instrument to provide fi...

Страница 27: ...nt on page 2 3 Operators Maintenance on page 1 8 Lifting Carrying the HP 37717C on page 1 6 DO NOT operate damaged equipment Whenever it is possible that the safety protection features built into this product have been impaired either through physical damage excessive moisture or any other reason REMOVE POWER and do not use the product until safe operation can be verified by service trained person...

Страница 28: ...onnects to the equipment s metal frame Alternating current AC Direct current DC Indicates hazardous voltages Warning denotes a hazard It calls attention to a procedure which if not correctly performed or adhered to could result in injury or loss of life Do not proceed beyond a warning note until the indicated condi tions are fully understood and met Caution denotes a hazard It calls attention to a...

Страница 29: ...ng Clean the cabinet using a dry cloth only Optical Connector Cleaning It is recommended that the optical connectors be cleaned at regular intervals using the following materials CAUTION Do not insert any tool or object into the IN or OUT ports of the instrument as damage to or contamination of the optical fibre may result 1 Recall Default settings STORED SETTINGS 0 and remove the power from the H...

Страница 30: ...suitably trained service personnel 4 Apply some isopropyl alcohol to a piece of the cleaning paper and clean the barrel of the adapter Using a new piece of cleaning paper clean the face of the adapter Repeat this operation using a new piece of cleaning paper each time 5 Lightly press the adhesive side of the tape provided against the front of the adapter then remove it quickly repeat twice This re...

Страница 31: ... in a safe condition The CE mark shows that the product complies with all relevant European legal Directives This is a symbol of an Industrial Scientific and Medical Group 1 Class A product The CSA mark is a registered trademark of the Canadian Stan dards Association Australian EMC Regulations The C Tick mark is a registered trademark of the Spectrum Management Agency of Australia This signifies c...

Страница 32: ...5 ESD IEC 1000 4 3 1995 Radiated Susceptibility IEC 1000 4 4 1995 EFT In order to preserve the EMC performance of the product any cable which becomes worn or damaged must be replaced with the same type and specification Electrostatic Discharge When an air discharge is applied to the HP37717C in accordance with IEC 801 2 1991 degradation in performance may be observed in the form of occasional bit ...

Страница 33: ... electromagnetic compatibility Against EMC test specifications EN 55011 1991 Group 1 Class A and EN 50082 1 1992 As Detailed in Electromagnetic Compatibility EMC Technical Construction File TCF No A 5951 9852 01 Assessed by Dti Appointed Competent Body EMC Test Centre GEC Marconi Avionics Ltd Maxwell Building Donibristle Industrial Park KY11 5LB Scotland United Kingdom Technical Report Number 6893...

Страница 34: ...C 75Ω unbalanced 3 pin Siemens 120Ω balanced Test patterns PRBS 215 1 223 1 at all rates ITU T O 151 Word User defined 16 bit word all ones all zeros 1010 1000 Output 704 kb s 2 048 Mb s HDB3 or AMI balanced unbalanced 8 448 Mb s HDB3 or AMI unbalanced 34 368 Mb s HDB3 unbalanced 139 264 Mb s CMI unbalanced Bit error add 1 in 103 or single error Clock timing Internal All rates Recovered loop timed...

Страница 35: ...KJ Interface Bit rates 2 048 Mb s 8 448 Mb s 34 368 Mb s and 139 264 Mb s Frequency offset Up to 100 ppm Interface Meets ITU T G 703 Connectors BNC 75Ω unbalanced 3 pin Siemens 120Ω balanced Test patterns PRBS 29 1 211 1 215 1 223 1 at all rates Word User defined 16 bit word all ones all zeros 1010 1000 Output 2 048 Mb s HDB3 or AMI balanced unbalanced 8 448 Mb s HDB3 or AMI unbalanced 34 368 Mb s...

Страница 36: ...00 ms for PRBS or 4 over100 ms for word patterns Sync gain when 32 consecutive error free bits received Equalization at f 2 2 048 Mb s 8 448 Mb s 6 dB34 368 Mb s 139 264 Mb s 12 dB Monitor point compensation 2 048 Mb s 8 448 Mb s 20 dB 26 dB or 30 dB 34 368 139 264 Mb s 20 dB or 26 dB Frame Formats As transmitter Frame Alignment 2 Mb s As ITU T Rec G 706 Frame Alignment 2 Mb s CRC4 As ITU T Rec G ...

Страница 37: ...ta Input Data rates 700 kb s to 50 Mb s TTL 700 kb s to 170 Mb s ECL Logic threshold 1 5V TTL 1 3V ECL ground 0V Format NRZ Termination Nominal TTL into 75Ω to ground or nominal ECL into75Ω to 2V Return loss Typically 15 dB 500 kHz to 200 MHz TTL Binary Clock Input Clock rates 700 kb s to 50 Mb s TTL 700 kb s to 170 Mb s ECL Logic threshold 1 5V TTL 1 3V ECL ground 0V signal mean level Format Nomi...

Страница 38: ...D4 DS1 ESF to ANSI T1 403 1989 Bellcore TR TSY 000499 and ITU T G 704 the ESF data link DL defaults to repetition of idle code 01111110 DS3 M13 to ANSI T1 107 1995 DS3 C bit parity to ANSI T1 107a 1990 E1 To ITU T G 706 G 732 E3 To ITU T G 751 N x 64 kb s structured to ITU T G 704 for E1 E3 N x 64 kb s and N x 56 kb s structured for DS1 and DS3 Test pattern PRBS 29 1 211 1 215 1 220 1 223 1 QRSS D...

Страница 39: ...le AB bits for SF ABCD for ESF and AB bits for SLC 96 framing Background patterns Unframed 29 1 PRBS AIS or same as test pattern as foreground test signal Ext DS1 mux input Weco bantam connector AMI or B8ZS Ext 2 Mb s mux input BNC to ITU T G 703 AMI or B8ZS DSn PDH receiver Type connectors rates line code and framing As for DSn PDH transmitter Jitter tolerance To Bellcore TR TSY 000009 DS1 DS3 an...

Страница 40: ...round TU 12 shave mapped 29 1 PRBS payload and the same overhead values as the foreground Test patterns PRBS 215 1 223 1 at all payload rates ITU T O 151 Word User defined 16 bit word all ones all zeros 1010 1000 Bit error add 1 in 103 or single error Clock timing Internal or recovered or external MTS Recovered From received SDH signal EXT MTS Data or clock format as ITU T G 811 TX Overhead Regene...

Страница 41: ...ed over the previous VC 3 before scrambling C2 is transmitted as Hexadecimal 04 34 Mb s mapping G1 is transmitted as all zeros F2 is transmitted as all zeros H4 is transmitted as all zeros Z3 Z5 are transmitted as all zeros All other bytes are all zeros TU 12 overhead V1 V2 V2 and the 2 least significant bits of V1 are 0 indicating a pointer value of 0 The 4 most significant bits of V1 are 0110 in...

Страница 42: ...imultaneous STM 1e STM 1e and STM 1o When used in conjunction with the appropriate optical interfaces transmit STM 1 electrical output signal simultaneously with optical output signal Transmitter Clock timing Internal All rates Recovered From SDH input CMI or NRZ electrical or optical Ext MTS 64 kb s conforming to ITU T G 703 2 Mb s conforming to ITUT G 811 BNC 75 Ω unbalanced or Siemens 3 pin 120...

Страница 43: ...s only For bit error rates supported with other payloads refer to the PDH test option for details Error type Single Rate 10 N Comments Frame A1A2 N in 4 frame words B1 4 9 B2 3 9 MS REI 3 9 AU 4 path BIP 8 B3 4 9 AU 4 path REI 4 9 AU 4 path IEC 4 9 AU 3 path BIP 8 B3 4 9 AU 3 path REI 4 9 AU 3 path IEC 4 9 TU 3 path BIP 8 B3 3 9 TU 3 path REI 3 9 TU 2 path BIP V5 4 9 TU 2 path REI 5 9 TU 12 path B...

Страница 44: ...G 2 VC 3 AU 3 AUG VC 12 TU 12 TUG 2 TUG 3 VC 4 AU 4 VC 12 TU 12 TUG 2 TUG 3 VC 3 AU 3 AUG VC 11 TU 11 TUG 2 TUG 3 VC 4 AU 4 AUG VC 11 TU 11 TUG 2 VC 3 AU 3 AUG DS1 and DS3 mappings require PDH options UKJ UKN or 110 to be fitted Payload data The following unframed patterns can be generated Framed and structured signals are available in conjunction with the PDH DSn option UKJ UKN 110 PRBS 29 1 O 15...

Страница 45: ... run prior to the chosen sequence Transmit overhead Overhead Default selection Standard overhead values to ITU T G 707 SOH user settable bytes SOH can be set in binary or HEX RSOH A1 A2 J0 E1 F1 D1 to D3 J0 path trace User defined predefined 16 byte ITU T E 164 sequence MSOH K1 K2 D4 to D12 S1 M1 Z1 Z2 E2 and access to bytes reserved for national use plus all bytes reserved for future internationa...

Страница 46: ...have TU 11 TU 12 or TU 3 independently for foreground testing channel Keep alive signals PDH Transmit last configured SDH signal while transmitting a PDH signal SDH With structured PDH options transmit unframed fixed word PDH signal while transmitting an SDH signal SDH Using unstructured PDH option transmit last configured PDH signal while transmitting an SDH signal Thru mode Transparent thru mode...

Страница 47: ... OUT and IN ports used for transmit Type Electrical To ITU T G 703 Connectors BNC 75 Ω unbalanced Rate 155 52 Mb s 51 84 Mb s Line code 155 52 Mb s CMI 51 84 Mb s B3ZS Output level 155 52 Mb s 0 5 V 10 51 84 Mb s Output level is user configurable STS 1 X CON 530 mV peak nominal STS 1 HI 1 1 V peak nominal STS 1 LOW 350m V peak nominal Error output B3 error output pulse on receipt of STS 1 and STS ...

Страница 48: ...I P STS 3c SPE LOP STS 3c SPE path unequipped STS 1 SPE AIS P STS 1 SPE RDI P STS 1 SPE LOP STS 1 SPE path unequipped VT6 path AIS VT6 RDI V VT6 LOP VT6 path unequipped VT6 H4 LOM loss of multiframe VT2 path AIS VT2 RDI V VT2 LOP VT2 path unequipped Error type Single Rate 10 N Comments Frame A1A2 N in 4 frame words CV S B1 4 9 CV 2 B2 3 9 REI L 3 9 STS 3c SPE CV P B3 4 9 STS 3c SPE REI P 4 9 STS 3...

Страница 49: ...ed Applicable to DS1 mappings only Payload framing 139 264 34 368 and 2 048 Mb s Unframed 139 264 34 368 and 2 048 Mb s Framed and structured signals DS3 payloads Unframed C Bit parity to ANSI T1 107a 1990 M13 to ANSI T1 107 1988 VT6 Unframed DS1 payloads Unframed SF D4 ESF to ANSI T1 403 1989 TR TSY 000499 and ITU T G 704 SLC 96 Only available in conjunction with the PDH DSn option UKJ UKN 110 Dr...

Страница 50: ... T E 164 sequence or 64 byte sequence VT6 SPE VT2 SPE VT1 5 SPE POH V5 J2 Z6 Z7 J2 path trace User defined predefined 16 byte ITU T E 164 sequence Overhead sequence generation A single or multi byte overhead channel is overwritten with a single or repeated sequence of programmed values The sequence can contain up to five different values each being transmitted for up to 64 000 frames SOH 6 byte ch...

Страница 51: ...In addition to the above the test features associated with the TOH and POH can be enabled to control one single or multi byte overhead channel i e errors and alarms optical stress test overhead sequences APS messages DCC insert overhead BER Full Rx functionality also available STS 3c STS 1 SPE overwrite thru mode In addition to both of the above overwrite the complete SPE with the internally gener...

Страница 52: ...according to ITU T G 709 2 048 Mb s Floating byte synchronous mapped into VC 12 according to ITU T G 709 VC 2 bulk loaded and mapped into TU 2 and TU 2 Nc for N 2 6 according to ITU T G 709 Payload Data PRBS 29 1 211 1 215 1 223 1 ITU T O 151 Word User defined 16 bit word all ones all zeros 1010 1000 Framed and structured payloads are available in conjunction with the Structured PDH option UKJ UKN...

Страница 53: ...te relative to each other Range 100 ppm in 0 1 ppm steps New pointer value The AU 4 TU 3 TU 12 or TU 2 moves to a selectable new location in a single jump with or without an accompanying new data flag NDF ITU T G 783 sequences Bursts of periodic single adjustments with added or cancelled adjustments Polarity is selectable Bursts of periodic double adjustments with pairs alternating in polarity In ...

Страница 54: ...egenerator section 192 kb s or multiplexer section 576 kb s communications channel Similarly data can be dropped from either Data may be inserted dropped MSB or LSB first STM 1 optical interface stress test 2 to 259 bytes of the payload are overwritten with a block of zeros or ones for NRZ systems after scrambling Alternatively the ITU T G 958 test can be selected STM 1 thru mode Transparent mode ...

Страница 55: ...wavelength 100 modulation depth BER of 10 10 and 223 PRBS Maximum input power 8 dBm for BER of 10 10 Alarms detected Loss of optical signal Background STM 1 overhead A1 A2 contains pattern F628 hexadecimal C1 00000001 to 00000100 Unused C1 bytes AA hexadecimal B1 Correct BIP 8 parity H1 H2 6A and 0A hexadecimal Y 93 hexadecimal B2 Correct BIP 24 parity B3 Correct BIP 8 parity H4 is transmitted as ...

Страница 56: ...ta or clock format as ITU T G 811 Frequency offset generation Up to 999 ppm in 0 1 ppm steps STM 4 error add Not available if SDH option is US1 Frame single and N in 4 frame words MS B2 BIP 10 4 to 10 9 STM 4 alarm generation Loss of signal requires A1T loss of frame requires A1T multiplexer section AIS multiplexer section FERF STM 4 thru mode The STM 4 signal is passed through the HP 37717C witho...

Страница 57: ...er a manual or programmed trigger the captured byte values are displayed together with the number of consecutive frames containing the value RSOH A1A2 E1 F1 C1 for STM 1 under test D1 D3 MSOH H1H2 K1K2 D4 D12 S1 E2 Z1 Z2 for STM 1 under test M1 when STM 1 number3 selected for test High order POH J1 C2 G1 F2 H4 Z3 Z4 Z5 for STM 1 under test STM 4 overhead BER measurement Not available if SDH option...

Страница 58: ...ansmitted for up to 64 000 frames RSOH D1 D3 E1 F1 C1 for STM 1 under test D4 D12 K1 K2 S1 E2 Z1 Z2 for STM 1under test M1 when STM 1 number 3 selected for test High order POH J1 C2 G1 F2 H4 Z3 Z4 Z5 for STM 1 under test STM 4 overhead BER test Not available if SDH option is US1 Any overhead channel listed under STM 4 sequence generation except Z1 Z2 can have a 29 1 PRBS inserted into a 64 kb s ch...

Страница 59: ...nominal Fibre power output 10dBm nominal Safety classification Class 3A FDA 21 CFR Ch 1 1040 10 and EN 60825 Clock timing Internal recovered from received STM 0 STM 1 or STM 4 optical electrical or binary signal external MTS data or clock format as ITU T G 811 Frequency offset generation Up to 999 ppm in 0 1 ppm steps VC 4 4C error add B3 BIP HP REI HP IEC 10 4 to 10 9 Bit 10 3 to 10 9 VC 4 4C ala...

Страница 60: ...y overhead channel listed under STM 4 sequence generation except Z1 Z2 can have a 29 1 PRBS inserted into a 64 kb s channel Single errors can be added to the test pattern and a BER measurement performed STM 4 MSP message generation Messages are displayed in text form as ITU T G 783 Linear or ITU T G 841 Ring Receive Wavelength 1200 1600 nm Sensitivity STM 0 and STM 1 34dBm minimum STM 4 28 dB mini...

Страница 61: ...nal external MTS data or clock format as ITU T G 811 Frequency offset generation Up to 999 ppm in 0 1 ppm steps VC 4 4C error add B3 BIP HP REI HP IEC 10 4 to 10 9 Bit 10 3 to 10 9 VC 4 4C alarm generation AU AIS HP RDI AU LOP Path Unequipped STM 4 error add Frame single and N in 4 frame words B1 BIP 10 4 to 10 9 B2 BIP and RS REI 10 3 to 10 9 STM 4 alarm generation Loss of signal loss of frame ou...

Страница 62: ... to the test pattern and a BER measurement performed STM 4 MSP message generation Messages are displayed in text form as ITU T G 783 Linear or ITU T G 841 Ring Receive Wavelength 1200 1600 nm Sensitivity STM 0 and STM 1 34dBm minimum STM 4 28 dB minimum with 1300 nm wavelength 100 modulation depth BER of 10 10 and 223 PRBS Maximum input power 8 dBm for BER of 10 10 Damage level 10 dBm Protected mo...

Страница 63: ... and STM 4 a jittered 139 264 Mb s clock is used to jitter the SDH clock The UI transfer function is 1 1 at STM 1 and 1 4 at STM 4 Jitter modulation Frequency 2 Hz to 4 MHz Frequency accuracy 1 Frequency resolution 2 to 499 Hz in 1 Hz steps 500 Hz to 4 99 kHz in 10 Hz steps 5 kHz to 49 9 kHz in 100 Hz steps 50 kHz to 499 kHz in 1 kHz steps 500 kHz to 990 kHz in 10 kHz steps 1 MHz to 4 MHz in 100 k...

Страница 64: ...eration at all standard PDH rates with the exception of 704 kb s If Option US1 A3R or A1T SDH is fitted adds Jitter generation at STM 1 and STM 4 Jitter Generation Data rates 2 048 Mb s 8 448 Mb s 34 368 Mb s 139 264 Mb s 155 52 Mb s STM 1 622 08 Mb s STM 4 At STM 1 and STM 4 a jittered 139 264 Mb s clock is used to jitter the SDH clock The UI transfer function is 1 1 at STM 1 and 1 4 at STM 4 Jit...

Страница 65: ...e of type A or B masks is available at STM 1 and STM 4 Automatic jitter tolerance test The mask is swept in 20 frequency increments and at each frequency the jitter amplitude is increased until errors of any type are detected External jitter modulation input Frequency range 2 Hz to 5 MHz Voltage response at 10 kHz 10 UI range 0 7V 0 2V pk pk UI 2 UI range 3V 1V pk pk UI Maximum input level 6V peak...

Страница 66: ...4 optical rate STM 1 optical rate STM 1 electrical rate and at all PDH rates except 704 kb s Pk Pk Adds Wander and Estimated Slips measurement at 2 048 Mb s Options A1M A1N A1P A3L A3V and A3N add PDH jitter measurement Jitter Data rates 2 048 Mb s 8 448 Mb s 34 368 Mb s 139 264 Mb s 155 52 Mb s STM 1 622 08 Mb s STM 4 STM 1 Electrical Input Line Code CMI Impedance 75Ω nominal unbalanced Level Nom...

Страница 67: ... 2 8 34 140 155 52 Mb s PRBS 0 1 UI Range 16 622 08 Mb s PRBS 0 2 UI Values are pk pk jitter measured with HP1 filter present Jitter Transfer Receiver Characteristics The value plotted is the Transfer Function calculated using equation Measurement Bandwidth 10Hz Dynamic Range 5dB to 40dB Stability 0 02dB The Measurement cycle must be started within 10 minutes of the completion of the Calibration c...

Страница 68: ...nt These ranges cover the measurements range specified in O 171 Table3 O 171 Note that the receiver will be able to handle transients of up to 24UI peak without losing lock although the measurement will be out of range On Losing Lock the Jitter Loss LED is illuminated If Lock is maintained but the measurement is out of range then a Status Message Jitter Out of Range is displayed on the Status Line...

Страница 69: ...ical value after calibration is 0 05UI Range Level Accuracy peak pk pk 1 6UI 0 0 2 UI 5 X Y Z 5 2X Y 2Z 1 6UI 0 21 1 6 UI 5 X Y Z 5 2X Y 2Z 16UI 0 0 2 UI 5 X Y Z 5 2X Y 2Z 16UI 0 21 16 0 UI 5 X Y Z 5 2X Y 2Z Receiver Intrinsic Jitter Bit Rate Kb s Range 1 6 Intrinsic Jitter UI Range 16 Intrinsic Jitter UI Clock all 1 s PRBS Y Y Y 2048 0 02 0 07 0 10 8448 0 02 0 07 0 10 34368 0 02 0 07 0 10 139264 ...

Страница 70: ...he receiver the transmitter intrinsics must be included Values are peak to peak jitter in UI measured with HP1 filter present Jitter Peak Results Resolution Range 1 6 steps of 0 001 UI Range 16 steps of 0 01 UI Jitter Hit Count The number of times in the jitter gating period that the received jitter amplitude exceeds a user set threshold Counter capacity is 7 100 000 hits per second Jitter Hit Thr...

Страница 71: ...rised for pk pk measurements hence operation is not specified This filter is not recommended in any relevant ITU T pk pk measurement standard RMS Jitter Measurement Options A3L A3V and A3N only This measurement is available at all interface rates Filters 12 kHz HP filter selectable If HP1 HP2 and or LP are enabled then they will affect the jitter signal measured by the RMS receiver RMS Results Res...

Страница 72: ...equency Range Level UIrms Accuracy 20Hz to 3MHz Additional factor 3MHz 0 5UI 0 0 1 5 V W Z 5 0 5UI 0 11 0 5 5 V W Z 5 5UI 0 0 1 5 V W Z 5 5UI 0 11 5 0 5 V W Z 5 Bit Rate kb s Range 0 5 Intrinsic Jitter UIrms Range 5 Intrinsic Jitter UIrms Clock all 1 s PRBS W W W 2048 0 004 0 03 0 04 8448 0 003 0 03 0 04 34368 0 02 0 04 0 05 139264 0 01 0 03 0 04 155520 electrical 0 006 n a 0 04 155520 optical 0 0...

Страница 73: ...ll be an additional 0 01 UI due to temperature variation Values are RMS jitter in UI rms measured with 12 kHz filter present RMS Results Resolution 0 5UI Range Display format is 0 001UI rms 5UI Range Display format is 0 01UIrms Demodulated jitter output Range 1 6 1 0 V UI Range 16 0 1 V UI Accuracy 10 nominal Wander Timing reference input External MTS clock as ITU T Rec G 811 Bit rate 2 048 Mb s F...

Страница 74: ... only External MTS 155 52 Mb s 622 08 Mb s only 34 368 Mb s Overhead As ITU T Rec G 832 Error Monitoring EM correct BIP 8 Trail Trace TR Test HP37717C padded with spaces and the correct CRC added User User defined Maintenance Adaptation MA 011 hexadecimal Network Operator NR All Zeroes General Communications GC All Zeroes 155 52 Mb s Overhead As SDH module Option US1 A3R or A1T Frame Formats 2 Mb ...

Страница 75: ...patterns Loss Of Frame At detection of Out Of Frame a 3 ms window is started If the system remains Out of Frame for the duration of the window then Loss Off Frame is activated If in frame is detected during the 3 mS window the timer is reset Cell layer modes UNI NNI Cell layer headers VPI VCI GFC PTI CLP Payload Cross Cell PRBS Single Cell PRBS User Byte Test Cell Live Traffic Test cell synchroniz...

Страница 76: ...t and ratio not 140 Mb s CRC4 error count and ratio 2 Mb s only REBE E bits error count and ratio 2 Mb s only G 821 type analysis On frame bit errors all rates On CRC errors 2 Mb s only On REBE errors 2 Mb s only Spare bit display At all rates M 2100 error analysis Tx error seconds Tx severely errored seconds Rx error seconds Rx severely errored seconds Unavailability Alarm indication All rates AI...

Страница 77: ...RAI Any occurrence of these alarms is displayed in graphical form Round trip delay Measures up to 2 seconds delay between transmit and receive Resolution 10 s Option 110 Results Frequency measurement Frequency displayed in Hz 1 Hz resolution Offset displayed in ppm and Hz Error results DS1 counts ratios Bit B8ZS AMI code violations frame errors CRC6 errors DS3 counts ratios Bit B3ZS code violation...

Страница 78: ...ng the ABCD signalling status of all 30 channels is available Alarm scan Alarms at the Interface Rate and at all lower levels in the hierarchy are scanned continuously A graphical picture of the hierarchy is shown which displays the alarm state for all streams SDH Option US1 Error results RSOH BIP 8 B1 MSOH BIP 24 B2 POH BIP 8 B3 Path FEBE VC 3 Path BIP VC 3 FEBE VC 5 BIP 2 VC 5 FEBE Bit PDH Paylo...

Страница 79: ...Offset displayed in ppm and Hz Received overhead snapshot SOH and POH of a received STM 1 signal Text message displayed for signal label C2 and V5 and sync status S1 decoded Overhead sequence capture Any one overhead channel is selected After a manual or programmed trigger the captured byte values are displayed together with the number of consecutive frames containing the value AU 4 pointer locati...

Страница 80: ...ndication plus NDF missing NDF and except clock loss AlarmScan plus alarm and BIP scan Automatically scans the SDH network hierarchy for alarms and BIP errors or alarms only with a graphical display of the network hierarchy s status including the indication of unequipped channels Alarms LOP path AIS path RDI H4 LOM TU LOP TU path AIS TU path RDI For TU 11 TU 12 and TU 2 structures If applicable BI...

Страница 81: ...S inserted into a 64 kb s channel Single errors can be added to the test pattern Error count error ratio error free seconds error free seconds and pattern loss seconds are measured Option 120 Results for SDH results see A3R Error results STS 3c SPE Frame A1A2 B1 B2 REI L CV P B3 STS 3c SPE REI L STS 3c SPE IEC P STS 1 SPE CV P B3 STS 1 SPE REI V STS 1 SPE IEC P VT6 CV V V5 VT6 REI V VT2 CV V V5 VT...

Страница 82: ...stment count seconds VT ve adjustment count seconds implied STS 3c SPE STS 1 SPE VT6 SPE VT2 SPE offset Frequency measurement Frequency displayed in Hz 1 Hz resolution Offset displayed in ppm and Hz Received overhead snapshot TOH can be set in binary or HEX TOH and POH of a received STM 1 signal TOH and POH of a received STS 1 signal Text message displayed for signal label C2 and V5 and sync statu...

Страница 83: ... 16UI and 256 UI are provided Alarms No reference and excess wander If Wander is 5 UI then the status message Excess Wander is displayed and is updated once minute ATM Measurement Option UKN Error results Physical Layer 2 048 Mb s CRC4 ITU T Rec G826 REBE ITU T Rec G826 34 368 Mb s 139 264 Mb s EM BIP ITU T Rec G826 FEBE ITU T Rec G826 155 52 Mb s 622 08 Mb s RS B1 BIP MS B2 BIP MS FEBE Path B3 BI...

Страница 84: ... Pattern Loss PM OAM loss VP AIS VP FERF VP LOC VC AIS VC FERF VC LOC ETSI ANSI Internal Transmitter Clock Rates Option UKZ Rates and Frequency DS1 1 544Mb s DS3 44 736Mb s E1 2 048Mb s E3 34 368Mb s Accuracy DS1 0 7 ppm 25C DS3 E1 and E3 DS1 0 5ppm 25C Temperature stability at all rates 3ppm 0 to 50C Ageing Stability at all rates 1ppm year ETSI ANSI Transmitter Output Level and Waveshape Option U...

Страница 85: ...e Cable Loss Accommodation Monitor mode Monitor Gain 2 048Mb s Unbalanced Mode Selectable OFF or Automatic Up to 6dB for root f cable half bit rate Selectable 20dB 26dB or 30dB 2 048Mb s Balanced Mode Selectable OFF or Automatic Up to 6dB 20dB se lected or 3dB 26 or 30dB selected for root f cable half bit rate Selectable 20dB 26dB or 30dB 34 368Mb s Selectable OFF or Automatic Up to 12dB for root ...

Страница 86: ... REBE error count Corrected HEC count Non corrected HEC count Non conforming cell count Bit error count Cell loss count Misinserted cell count Errored cell count BEDC count and ATM alarms Printer Internal 24 column thermal printer External 80 column HP 550C Deskjet printer HP IB HP 550C Deskjet printer or 40 column or 80 column printer RS 232 C HP 550C Deskjet printer or 40 column or 80 column pri...

Страница 87: ... to floppy disk drive Copying of instrument configuration files to from internal instrument storage to from floppy disk drive Deleting files or directories from floppy disk drive Renaming of files Labeling of floppy disks Formatting of floppy disks Allows the upgrading of instrument firmware from the floppy disk drive ...

Страница 88: ... MHz 2 channels with accuracy 0 1ppm Ratio Mode HP 5335A Opt 010 Optical Power Meter and Sensor Module Range 8 dBm to 15 dBm Wavelength1270 1340 nm HP 8153A and HP 81536A Dual Power Supply 12V HP 6253A Lightwave Receiver Wavelength 1300 to 1560 nm Conversion Gain 750 volts watt Frequency Response 3 dB down at 1 GHz HP 83422A Optical Attenuator Wavelength 1200 1600 nm Range 0 30 dB FC PC Optical In...

Страница 89: ...0240A Cable Attenuator Unique HP 8120 0039 70 m 75Ω 50Ω Matching Pad Insertion Loss 5 7 dB HP 11852B Qty 2 75Ω Termination 0 to 200 MHz HP 15522 80010 T Connector BNC to Dual BNC HP 1250 0781 Adaptor N Type f to BNC m 1250 1534 Qty 2 Adaptor N Type m to N Type m 1250 1475 Qty 2 Adaptor SMA to BNC 1250 1787 Qty 2 RS 232 C Loopback Unique See Figure 3 1 5060 4462 Cable Simulator 5 450 feet of type 7...

Страница 90: ...ally and electrically Procedures for checking electrical operation are given in the Calibration manual If the contents of the shipment are incomplete if there is mechanical damage or defect notify the nearest Hewlett Packard Office If the instrument does not pass the electrical performance tests given in the Calibration manual notify the nearest Hewlett Packard office If the shipping container is ...

Страница 91: ...extremes which may cause condensation To ensure adequate cooling do not obstruct air vents in the instrument cabinet CAUTION This instrument is designed for use in Installation Category II and Pollution Degree 2 per IEC 1010 and 644 respectively CAUTION VENTILATION REQUIREMENTS When installing the instrument in a cabinet the convection into and out of the instrument must not be restricted The ambi...

Страница 92: ...rements The HP 37717C Communications Performance Analyzer requires a power source of 90 V to 132 V ac and 198 V to 264 V ac at a frequency between 47 Hz and 63 Hz nominal Total power consumption is 450 VA maximum The fuse rating for the power source is given in the following Table Fuses Fuse Replacement Only the ac line fuse located at the rear of the instrument may be replaced by the operator WAR...

Страница 93: ... and the fuse changed for another of the correct rating The fuse rating and HP part number are listed in Fuses on page 2 3 Connecting to the Power Supply WARNING This is a Safety Class I instrument provided with a protective earthing ground incorporated in the powercord The mains plug shall only be inserted in a socket outlet provided with a protective earth contact Any interruption of the protect...

Страница 94: ...o the neutral pole of the power source WARNING c The power cable plug shall only be inserted into a socket outlet provided with a protective ground contact The protective action must not be negated by the use of an extension cord without a protective conductor grounding The power cord supplied with each instrument varies with the country of destination The following figure illustrates the standard...

Страница 95: ...me Additional ESD information is required when servicing see Additional Precautions for Service Engineers on page 2 18 Electrical Interface Connectors PDH IN PDH receiver input interface Allows the connection of 75 Ω unbalanced data signals all rates and 120 Ω balanced data signals at 2 Mb s and 704 kb s Option UKK USB PDH OUT PDH transmitter output interface Provides 75 Ω unbalanced data output a...

Страница 96: ...0 Mb s 75 Ω OUT 3 Replica of PDH DSn OUT delayed by 12 bits at all rates except 140 Mb s ERROR OUT Provides an ECL pulse each time an error occurs If 2 or more errors occur within 16 clock periods only 1 pulse is output STM 1 IN SDH receiver input interface Allows the connection of 75 Ω unbalanced STM 1 electrical signals STM 1 OUT SDH transmitter output interface Provides a 75 Ω unbalanced STM 1 ...

Страница 97: ...junction with the SDH SONET module a DS1 signal can be inserted into a VT1 5 or TU 11 MUX 2 Mb s 75 Ω Allows an externally supplied 2 048 Mb s signal to be inserted in any or all timeslot s of a 34 Mb s signal Inconjunction with the SDH module a 2 048 Mb s signal can be inserted into a TU 12 DEMUX Opt UKJ Provides a 2 Mb s tributary dropped from the received payload DEMUX DS1 100 Ω Allows a DS1 si...

Страница 98: ...OUT Provides a demodulated Jitter output TRIG OUT Not used in option 110 instruments RS 449 Allows the Drop and Insert of Regenerator Section 192 kb s and Multiplexer Section 576 kb s Data Communication Channels DCC The following connections are available Pin Number Connection 4 Send Data A 5 Send Timing A 6 Receive Data A 8 Receive Timing A 19 Signal Ground Chassis 22 Send Data B 23 Send Timing B...

Страница 99: ...nd 131 are classified as a Class 3A laser product in Europe which complies with EN 60825 1 1994 IEC825 1 1993 Laser classification is based on the ability of the optical beam to cause biological damage to the eye or skin The EN 60825 1 1994 definition of Class 3A is Any laser product which permits human access to laser radiation in excess of the accessible emission limits of Class I and Class 2 as...

Страница 100: ...al Out connector Arrange for service trained personnel who are aware of the hazards involved to repair optical cables CAUTION 1 Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure 2 Always leave the fibre optic connector dust caps on each connector when not in use Before connection is made always clean the connect...

Страница 101: ...g label WARNING Direct intrabeam viewing of Class 3A laser beams with optical aids e g binoculars telescopes may be hazardous For laser emitting in the range from 400nm to 700nm protection to the unaided eye is afforded by aversion responses including the blink reflex Swedish and Finnish Labels CLASS 3A LASER PRODUCT ...

Страница 102: ...2 13 Installation Connecting to the Network Location of Laser Apertures on Options 130 and 131 ...

Страница 103: ...n STM 0 STM 1 or STM 4 optical signal STS 1 STS 3 and STS 12 SONET signals Option UH1 provides a STM 1 optical signal wavelength1280 to 1330nm at a nominal power level of 10 dBm Options 130 and 131 provide an STM 0 STM 1 and STM 4 optical signal wavelength 1280 to 1330 nm at a nominal power level of 10 dBm Option 131 also provides a STM 1 and STM 4 optical signal wavelength 1550 to 1565 nm at a no...

Страница 104: ...Y External printer connection details are given in the Users Guide The port selected for external printer use is not available for remote control Remote Control HP IB RS232 10 BASE T Remote control connection is given in the Remote Control Manual The port selected for remote control use is not available for an external printer 10 Base T Lan Connection Radiated Emissions To ensure compliance with E...

Страница 105: ...s interface electronics to maintain correct line voltage levels and timing relationships When connecting an HP IB system the following rules should be observed The total HP IB cable length used must be less than or equal to 20 meters 65 6 feet The total HP IB cable length used must be less than or equal to 2 meters 6 feet the total number of devices connected to the bus A standard HP IB connector ...

Страница 106: ... Accessories HP IB Connections HP IB Address Selection The HP 37717C Option A3B or A3D HP IB address is accessed on the OTHER display under the REMOTE CONTROL function The address can be set to any value between 0 and 30 inclusive ...

Страница 107: ... the Operator on page 1 9 ESD Precautions CAUTION When making connections to the modules review Connecting to the Network on page 2 6 The module contains components sensitive to electrostatic discharge To prevent component damage carefully follow the handling precautions presented below The smallest static voltage most people can feel is about 3500 volts It takes less than one tenth of that about ...

Страница 108: ...en you install the module keep one hand in contact with the protective bag as you pick up the module with your other hand Then before installing the module ensure that you are grounded or make contact with the metal surface of the Mainframe with your free hand to bring you the module and the mainframe to the same static potential This also applies whenever you con nect disconnect cables on the fro...

Страница 109: ...2 20 Installation Additional Precautions for Service Engineers ...

Страница 110: ...quired Some of the Performance Tests require additional modules to be present in the instrument under test Before starting Performance Tests refer to Appendix B to decide if you need to fit any extra modules Performance Test Record The results of the Performance Tests may be recorded on the Performance Test Record at the end of this Section The Performance Test Record lists all the tested specific...

Страница 111: ... test The pre defined default settings are listed in Appendix A 1 Using display softkeys and set up the display as shown opposite 2 Press to recall the instrument default settings The instrument display will blank for a few seconds while the settings are recalled and the status display will indicate stored settings number 0 recalled OTHER OTHER STORED SETTINGS RECALL ...

Страница 112: ...ut If Option UKJ is fitted also connect MUX port to DEMUX port If Option UH3 is fitted connect CLOCK OUT to CLOCK IN and DATA OUT to DATA IN 4 SDH Loopbacks Connect the STM 1 IN port to the STM 1 OUT port 5 Optical Interface Loopbacks Connect the IN port to the OUT Port CAUTION If Option URU STM 1 STM 4 Optical Interface is fitted connect an Optical attenuator set to 10 dB between the IN and OUT P...

Страница 113: ...TUS PASSED is displayed If TEST STATUS FAIL nnn is displayed the HP 37717C should be returned to a service office for repair FAIL Error Numbers are listed and defined in Appendix B Additional Tests Some options require additional test to be carried out to completely verify the option integrity These require different connections and the tests run individually RS 232 C Tests If Option A3B or A3D is...

Страница 114: ...JITTER TESTS 1550 nm Dual Wavelength Tests If Option USN 130 Dual Wavelength Optical Interface is fitted the 1550 nm tests are not included under ALL TESTS To complete the 1550 nm tests 1 Select STM 1 STM 4 OPTICS TESTS 2 Connect STM 1 STM 4 1550 nm OUT to STM 1 STM 4 1550 nm IN via an Optical Attenuator set to 10 dB 3 RUN the STM 1 STM 4 OPTICS TESTS Datacomm Tests If Option A1T A1U or A3R A3S 12...

Страница 115: ...o measure the data rate on an all ones pattern This gives an indirect measure of the internal transmitter clock frequency as the data is clocked by the internal clock oscillator Because the Frequency Counter triggers from the positive pulses only the frequency count will be half the selected data rate Equipment Required Bit Rate Option Specification 139 264 MHz UKJ USA UKK USB 139 264 MHz 626 28 H...

Страница 116: ... 53 Hz and 352002 46 Hz 6 Select SIGNAL 2 Mb s adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the Frequency Counter reads between 1023992 8 Hz and 1024007 2 Hz 7 Select signal 8 Mb s adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the Frequency Counter reads between 4223970 4 Hz and 4224029 6 Hz 8 Sele...

Страница 117: ... Counter Trigger Level to obtain a stable reading and ensure that the Frequency Counter reads between 69630642 18 Hz and 69631268 86 Hz 13 Select TX CLOCK OFFSET USER OFFSET 100PPM and ensure that the Frequency Counter reads between 69638649 86 Hz and 69639276 54 Hz 14 Select TX CLOCK OFFSET USER OFFSET 100PPM adjust the Frequency Counter Trigger Level to obtain a stable reading and ensure that th...

Страница 118: ...UKJ USA UKK USB 17184266 35 17184421 01 34 Mbit s 20 ppm UKJ USA UKK USB 17183578 99 17183733 65 8 Mbit s 30 ppm UKJ USA UKK USB 4224107 7 4224145 73 8 Mbit s 30 ppm UKJ USA UKK USB 4223854 27 4223892 29 2 Mbit s 50 ppm UKJ USA UKK USB 1024046 59 1024055 81 2 Mbit s 50 ppm UKJ USA UKK USB 1023944 19 1023953 41 704 kbit s 50 ppm UKK USB 352016 0 352019 18 704 kbit s 50 ppm UKK USB 351980 82 351983 ...

Страница 119: ...gures and compared with a printout of the oscilloscope waveform NOTE A Balanced to unbalanced Converter is required to test the Balanced output port The 3V peak at the output is reduced to 2 37V peak on the oscilloscope by this device The oscilloscope must be terminated in 75Ω for both balanced and unbalanced outputs Equipment Required Procedure 704 kb s Unbalanced Output 1 Recall the HP 37717C DE...

Страница 120: ...lse Amplitude 2 133V to 2 607V Pulse Width 639 ns to 781 ns Overshoot 0 474V Undershoot 0 474V Figure 3 1 704 kb s Pulse Criteria 7 Adjust the Oscilloscope Delay to position the negative peak pulse amplitude at mid pulse width point in the centre of the screen and verify that the negative pulse meets the criteria listed in step 6 704 kb s Balanced Output 8 Connect the Balanced to Unbalanced Conver...

Страница 121: ...tre of the screen 14 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope and verify that this is between 2 133V and 2 607V 15 Select the 2Mb G 703 mask on the oscilloscope and store it on the display 16 Press SHIFT on the oscilloscope to automatically align the pulse to the mask in Figure 3 2 Verify that the pulse falls within the mask as shown in Figure 3 3 Figure 3 2 2 Mb ...

Страница 122: ...iddle of negative pulse Set trigger to pattern Set sequence to H X X 19 Use the oscilloscope to display an inverted mask on the oscilloscope 20 Adjust the oscilloscope timebase and vertical sensitivity controls to verify that the pulse meets the mask as shown in Figure 3 3 Use the displayed settings as a guide 21 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope and verify...

Страница 123: ...HP 37717C 120Ω Balanced SIGNAL OUT port and the Oscilloscope 25 Select TERMINATION 120Ω BAL on the display 26 Repeat steps 13 through 23 8 448 Mb s Unbalanced Output 27 Select SIGNAL 8 Mb s and TERMINATION 75Ω UNBAL on the display 28 Connect the Unbalanced 75Ω SIGNAL OUT port to the Oscilloscope Input 1 Set the oscilloscope termination to 1MΩ and press on the oscilloscope 29 Select the 8 Mb G 703 ...

Страница 124: ...e does not have the Mask feature obtain a printout of the displayed pulse Place the mask shown in Figure 3 6 over the pulse and ensure that the pulse falls within the mask A transparent copy of the mask should be used Figure 3 5 8 Mb s Pulse Mask Figure 3 6 8 Mb s Isolated Positive Pulse ...

Страница 125: ...3 16 Performance Tests PDH Transmitter Output UKK USB UKJ USA Figure 3 7 8 Mb s Isolated Negative Pulse ...

Страница 126: ... on the display 34 Repeat steps 13 through 23 in step 21 ensure the peak pulse amplitude is 0 9V to 1 1V to verify the 34 Mb s unbalanced output Figure 3 8 34 Mb s Pulse Mask NOTE If your oscilloscope does not have the Mask feature obtain a printout of the displayed pulse Place the mask shown in Figure 3 8 over the pulse and ensure that the pulse falls within the mask A transparent copy of the mas...

Страница 127: ...3 18 Performance Tests PDH Transmitter Output UKK USB UKJ USA Figure 3 9 34 Mb s Isolated Positive Pulse Figure 3 10 34 Mb s Isolated Negative Pulse ...

Страница 128: ...n 39 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope and verify that this is between 0 900V and 1 100V 40 Press SHIFT on the oscilloscope to automatically align the pulse to the mask Verify that the pulse falls within the mask as shown in Figure 3 12 NOTE If your oscilloscope does not have the Mask feature obtain a printout of the displayed pulse Place the mask shown in ...

Страница 129: ...he screen 44 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope and verify that this is between 0 900V and 1 100V 45 Press SHIFT on the oscilloscope to automatically align the pulse to the mask Verify that the pulse falls within the mask as shown in Figure 3 14 NOTE If your oscilloscope does not have the Mask feature obtain a printout of the displayed pulse Place the mask s...

Страница 130: ...3 21 Performance Tests PDH Transmitter Output UKK USB UKJ USA Figure 3 13 140 Mb s Pulse Mask All 0 s Figure 3 14 140 Mb s All Zeros Pulse ...

Страница 131: ...es that the 3 additional PDH transmitter outputs meet ITU pulse shape and level specifications for all rates Each PDH Signal Out Port is connected to a Digitizing Oscilloscope terminated in 75Ω and the waveform is checked for required amplitude and duty cycle at the nominal mid points Pulse Amplitude 704 kb s 2 37V 10 2 Mb s 2 37V 10 8 Mb s 2 37V 10 34 Mb s 1 00V 10 140 Mb s 0 50V 10 704 kb s 2 8 ...

Страница 132: ... the oscilloscope Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 704 kb s Output Pulse 2 Connect the PDH SIGNAL OUT 2 port to the Oscilloscope Channel 1 Set the Oscilloscope termination to 1MΩ Steps 3 to 16 are only valid for Option UKK USB 3 Press and set up the display as shown opposite 4 Press on the oscilloscope 5 Adjust the Oscilloscope Timebase and Delay...

Страница 133: ...h point in the centre of the screen and verify that the negative pulse meets the criteria listed in step 6 9 Repeat step 8 with the Oscilloscope Channel 1 connected to SIGNAL OUT 2 and SIGNAL OUT 3 in turn 704 kb s Additional Outputs Delay 10 Connect the PDH SIGNAL OUT 1 port to the Oscilloscope Channel 1 Set the Oscilloscope termination to 1MΩ 11 Connect the PDH SIGNAL OUT 2 port to the Oscillosc...

Страница 134: ...scilloscope 20 Adjust the Oscilloscope Timebase and Delay to position the positive peak pulse amplitude at mid pulse width point in the centre of the screen 21 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope and verify that this is between 2 133V and 2 607V 22 Select the 2Mb s G703 Mask on the oscilloscope and store it on the Display 23 Press SHIFT on the oscilloscope to...

Страница 135: ...ative pulse Set Trigger to PATTERN Set Sequence to H X X 26 Use the oscilloscope function to display an inverted pulse mask on the oscilloscope 27 Adjust the oscilloscope timebase delay and vertical sensitivity controls to verify that the pulse meets the mask as shown in Figure 3 16 Use the displayed settings as a guide 28 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope ...

Страница 136: ... 2 36 Check that the pulse on Channel 2 is 12 bits delayed with respect to the pulse on Channel 1 37 Ensure that the ratio of ve and ve pulse amplitudes is between 0 95 and 1 05 38 Ensure that the ratio of ve and ve pulse widths is between 0 95 and 1 05 8 448 Mb s Output Pulse 39 Connect the PDH SIGNAL OUT 2 port to the Oscilloscope Channel 1 40 Press and set up the display as shown opposite 41 Pr...

Страница 137: ...n 47 Press on the oscilloscope to display the full waveform and use the following sequence to display the isolated negative pulse Select menu Set trigger level to middle of negative pulse Set Trigger to PATTERN Set Sequence to H X X 48 Use the oscilloscope function to display an inverted pulse mask on the oscilloscope 49 Adjust the oscilloscope timebase delay and vertical sensitivity controls to v...

Страница 138: ... bits delayed with respect to the pulse on Channel 1 57 Disconnect the SIGNAL OUT 3 port from the oscilloscope and connect the SIGNAL OUT 4 port to the oscilloscope Channel 2 58 Check that the pulse on Channel 2 is 12 bits delayed with respect to the pulse on Channel 1 59 Ensure that the ratio of ve and ve pulse amplitudes is between 0 95 and 1 05 60 Ensure that the ratio of ve and ve pulse widths...

Страница 139: ... in Figure 3 18 over the pulse and ensure that the pulse falls within the mask a transparent copy of the mask should be used Figure 3 18 34 Mb s Pulse Mask 68 Repeat steps 64 to 67 with the Oscilloscope Channel 1 connected to SIGNAL OUT 3 and SIGNAL OUT 4 in turn 69 Press on the oscilloscope to display the full waveform and use the following sequence to display the isolated negative pulse Select m...

Страница 140: ...annel 2 Set the Oscilloscope termination to 1MΩ 76 Set the Transmitter Output PATTERN to USER WORD 1111111110001000 and check that the pulse on Channel 2 is 4 bits delayed with respect to the pulse on Channel 1 77 Disconnect the SIGNAL OUT 2 port from the oscilloscope and connect the SIGNAL OUT 3 port to the oscilloscope Channel 2 78 Check that the pulse on Channel 2 is 8 bits delayed with respect...

Страница 141: ...sing the Oscilloscope and verify that this is between 0 900V and 1 100V 89 Press SHIFT on the oscilloscope to automatically align the pulse to the mask Verify that the pulse falls within the mask as shown in Figure 3 20 90 Repeat steps 87 to 89 with the Oscilloscope Channel 1 connected to SIGNAL OUT 3 and SIGNAL OUT 4 in turn NOTE If your oscilloscope does not have the Mask feature obtain a printo...

Страница 142: ...lloscope and verify that this is between 0 900V and 1 100V 95 Press SHIFT on the oscilloscope to automatically align the pulse to the mask Verify that the pulse falls within the mask as shown in Figure 3 20 NOTE If your oscilloscope does not have the Mask feature obtain a printout of the displayed pulse Place the mask shown in Figure 3 20 over the pulse and ensure that the pulse falls within the m...

Страница 143: ...smitter Output PATTERN to 1000 and check that the pulse on Channel 1 is in phase with the pulse on Channel 2 100 Disconnect the SIGNAL OUT 2 port from the oscilloscope and connect the SIGNAL OUT 3 port to the oscilloscope Channel 2 101 Check that the pulse on Channel 1 is in phase with the pulse on Channel 2 102 Disconnect the SIGNAL OUT 3 port from the oscilloscope and connect the SIGNAL OUT 4 po...

Страница 144: ...consecutive incorrect FAS words Frame Gain 3 consecutive correct FAS words 1111010000 34 Mb s Frame Loss 4 consecutive incorrect FAS words Frame Gain 3 consecutive correct FAS words 1111010000 8 Mb s Frame Loss 4 consecutive incorrect FAS words Frame Gain 3 consecutive correct FAS words 1111010000 2 Mb s Frame Loss 3 consecutive incorrect FAS words or NFAS words Frame Gain 1 correct sequence of FA...

Страница 145: ...cedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 Option UKK USB Unstructured PDH 2 Setup the Display as shown opposite 3 Setup the display as shown opposite Option UKJ USA Structured PDH 2 Setup the Display as shown opposite RECEIVE RESULTS RECEIVE ...

Страница 146: ...S 10011011 NFAS 01011111 Press until all the 2048 Kbit s Led s are OFF 2 Connect the Frame Generator AMI HDB3 output to the HP 37717C 75Ω SIGNAL IN port 3 Press on the HP 37717C to start the measurement 4 Check that all PDH Alarm Led s are OFF Error Count and Error Ratio should be 0 CAS Multiframe 5 Press the Frame Generator 2048 Kbit s key until the CAS MFL Led is flashing 6 Press the Frame Gener...

Страница 147: ...at the PDH Frame Loss and Multiframe Loss Alarm Led s are now OFF Error Detection 16 Use the Frame Generator 2048 Kbit s and keys to select and enable BIT ERROR 2Mb s 17 Check that the HP 37717C counts FRAME FAS CRC and REBE errors A minimum of 1 REBE error should occur in a 1 minute period The CODE Error Count should be 0 Alarm Detection 18 Use the Frame Generator 2048 Kbit s and keys to select a...

Страница 148: ...rs and Remote alarm Led s are ON may be flashing 6 Check that the HP 37717C counts Frame FAS Errors The Code Error count should be 0 7 Press the Frame Generator 8448 Kbit s key and check that the FRAME FAS Error Count is 0 and all Alarm Led s are now OFF Alarm Detection 8 Set the Frame Generator SB parameter to 10 9 Check that the HP 37717C Remote Alarm Led is ON Error Count and Error Ratio should...

Страница 149: ...s the 34368 Kbit s key until all 34368 Kbit s ERROR and AIS Led s are OFF 3 Press on the HP 37717C to start a measurement and check that all HP 37717C Alarm Led s are OFF The Error Count and Error Ratio should be 0 Error Detection 4 Press the 34368 Kbit s key until all 34368 Kbit s ERROR and AIS Led s are OFF 5 Use the Frame Generator 34368 Kbit s and keys to select and enable BIT ERROR 6 Check th...

Страница 150: ...rm Led s are ON 17 Press the Frame Generator 34368 Kbit s key and check that the FRAME FAS Error Count is 0 and all Alarm Led s are now OFF 18 Press on the HP 37717C once to stop the measurement 140 Mb s Frame Analysis 1 Select SIGNAL 140 Mb s on the HP 37717C display then return to Display 2 Set the HP 37729A Frame Generator parameters as follows OUTPUT FREQ 139 CODE CMI ALIGNMENT 140M SB 0000 FA...

Страница 151: ...s 0 11 Reset the Frame Generator SB parameter to 0000 FAS Error and AIS 12 Use the Frame Generator 139264 Kbit s and keys to select and enable FAS ERROR 13 Check that the HP 37717C Frame Loss alarm Led is ON 14 Press the Frame Generator 139264 Kbit s key and check that the FRAME FAS Error Count is 0 and all Alarm Led s are now OFF 15 Use the Frame Generator 139264 Kbit s and keys to select and ena...

Страница 152: ...P 37717C receiver should sync up with no errors if PATTERN ALL ONES is selected The amplitude of the synthesizer signal is set to the specified maximum loss for each bit rate At that amplitude no errors should result Equipment Required Bit Rate Option Equalization at 1 2 Bit Rate 704 kb s UKK USB 6dB 2 048 Mb s UKK USB UKJ USA UKL USC UKN USE 6dB 8 448 Mb s UKK USB UKJ USA UKL USC UKN USE 6dB 34 3...

Страница 153: ...own on 3 2 2 Connect up the equipment as shown in Figure 3 21 3 Set the oscilloscope TERMINATION 1 MΩ PROBE 1 1 Figure 3 21 PDH Receiver Equalization Test Setup 704 kb s NOTE Steps 4 to 8 are only valid if Option UKK USB is fitted 4 Press and set up the display as shown opposite 5 Select TEST TIMING SINGLE 5 SECS RECEIVE RESULTS TIMING CONTROL ...

Страница 154: ...e displayed at the end of the test period 5 seconds 2 048 Mb s 9 Press and set up the display as shown opposite 10 Select TEST TIMING SINGLE 5 SECS 11 Press and set up the display as shown opposite 12 Set the Synthesizer to FREQUENCY 1024 KHz sinewave AMPLITUDE 2 37 V pk pk 6dB down as measured on the oscilloscope 13 Press and verify that no errors are displayed on the display at the end of the te...

Страница 155: ...Mb s on the display 18 Set the Synthesizer to FREQUENCY 17184 KHz sinewave AMPLITUDE 0 5 V pk pk 12dB down as measured on the oscilloscope 19 Press and verify that no errors are displayed on the display at the end of the test period 5 seconds 139 264 Mb s 20 Select SIGNAL 140 Mb s on the display 21 Set the Synthesizer to FREQUENCY 69632 KHz sinewave AMPLITUDE 0 25 V pk pk 12dB down as measured on ...

Страница 156: ...the bit rate which corresponds to a ternary all ones signal The receiver should sync up with no errors if PATTERN ALL ONES is selected Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect up the equipment as shown in Figure 3 22 3 Set the oscilloscope to TERMINATION 1 MΩ PROBE 1 1 4 Select TEST TIMING SINGLE 5 SECS Bit Rate Nominal Loss 704 kb s 26 to 30dB...

Страница 157: ...he display as shown opposite Press until the Monitor led is lit 6 Press and set up the display as shown below 7 Set the Synthesizer to FREQUENCY 352 KHz sinewave AMPLITUDE 150 mV pk pk 30dB down as measured on the oscilloscope 8 Press and verify that no errors are displayed at the end of the test period 5 seconds RECEIVE RUN STOP RESULTS RUN STOP ...

Страница 158: ...loscope 14 Press and verify that no errors are displayed at the end of the test period 5 seconds 34 368 Mb s 15 Select SIGNAL 34 Mb s on the display 16 Set the Synthesizer to FREQUENCY 17184 KHz sinewave AMPLITUDE 100 mV pk pk 26dB down as measured on the oscilloscope 17 Press and verify that no errors are displayed at the end of the test period 5 seconds 139 264 Mb s 18 Select SIGNAL 140 Mb s on ...

Страница 159: ...75 50Ω Matching Pad at one end and a 50 75Ω Matching Pad at the other end The loss of the two Matching Pads is included in the overall attenuation equation The Cable Loss is supplied by inserting the correct Cable Simulators for each bit rate in the attenuation path Equipment Required Bit Rate Nominal Loss Equalization at 1 2 Bit Rate 2 048 Mb s 20 26 30dB 3dB 8 448 Mb s 20 26 30dB 3dB 34 368 Mb s...

Страница 160: ...AULT SETTINGS as shown on 3 2 2 Connect the equipment as shown in Figure 3 23 Figure 3 23 SPDH Receiver Monitor Input Fixed Attenuator Qty 2 HP 8491A Option 006 6dB 50Ω Fixed Attenuator Qty 2 HP 8491A Option 003 3dB 50Ω Matching Pad 75 50Ω 7 6dB loss HP 11852B Matching Pad 50 75Ω 4 2dB loss HP 11852B Table 3 2 continued ...

Страница 161: ...ect Cable Simulator 1 between the PDH OUT Port and the Matching Pad 10 Press Press to start the measurement 11 Ensure that NO TROUBLE is displayed on the display after 30 seconds Press to stop the measurement 12 Connect the second 6dB Fixed Attenuator in the signal path to give a total path attenuation of 26 8dB 7 6 3 6 6 4 2 13 Press and set MONITOR LEVEL 26dB 14 Press Press to start the measurem...

Страница 162: ...play after 30 seconds Press to stop the measurement 24 Press and select EQUALIZATION ON 25 Connect Cable Simulator 1 between the PDH OUT Port and the Matching Pad 26 Press Press to start the measurement 27 Ensure that NO TROUBLE is displayed on the display after 30 seconds Press to stop the measurement 8 448 Mb s 28 Repeat steps 1 to 26 20dB 26dB and 30dB tests with the HP 37717C and displays set ...

Страница 163: ... Options UKJ USA UKL USC UKN USE 139 264 Mb s 30 Repeat steps 1 to 18 20dB and 26dB tests with the HP 37717C and displays set to SIGNAL 140 Mb s and Cable Simulator 4 fitted in place of Cable Simulator 3 31 Disconnect all test equipment TRANSMIT RECEIVE ...

Страница 164: ...The HP 37717C transmitter and receiver are looped The unframed 2Mb s signal is Demultiplexed from the 140Mb s data stream to the HP 37717C DROP port The DROP Port signal is then applied to the PDH Test Set and a BER test is performed to verify the integrity of the 2 Mb s signal The output from the DROP Port is then applied to an oscilloscope and the waveform characteristics are checked to ensure t...

Страница 165: ...t capable of generating and measuring at 2 Mb s unframed can be used Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect the equipment as shown in Figure 3 24 Figure 3 24 External 2 Mb s Mux Demux Oscilloscope HP 54503A PDH Test Set HP 37717C Option UKJ USB or equivalent 75Ω Termination HP 15522 80010 50 75Ω Matching Pad HP 11852B T Connector HP 1250 0781 ...

Страница 166: ...ns UKJ USA UKN USA 3 Press on the Test Set and set up the display as shown opposite 4 Press on the Test Set and set up the display as shown opposite 5 Press on the HP 37717C and set up the display as shown opposite TRANSMIT RECEIVE TRANSMIT MAIN SETTINGS ...

Страница 167: ...DH on the Test Set and ensure that the Bit Error Count and Code Error Count are both zero 10 Press SINGLE error add key on the Test Set and ensure the Bit Error count increments by one each time the key is pressed 11 Disconnect the UUT Drop Port from the Test Set and connect this to the oscilloscope Input 1 via a 75Ω termination and T connector Set the oscilloscope termination to 1MΩ and press TRA...

Страница 168: ...lloscope to automatically align the pulse to the mask Verify that the pulse falls within the mask as shown in Figure 3 25 Figure 3 25 2 Mb s Pulse Mask NOTE If your oscilloscope does not have the Mask feature obtain a printout of the displayed pulse Place the mask shown in Figure 3 25 over the pulse and ensure that the pulse falls within the mask A transparent copy of the mask should be used 16 Pr...

Страница 169: ...the oscilloscope 19 Adjust the oscilloscope timebase and vertical sensitivity controls to verify that the pulse meets the mask as shown in Figure 3 27 Use the displayed settings as a guide 20 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope and verify that this is between 2 133V and 2 607V Figure 3 27 2 Mb s Isolated Negative Pulse STORE INVERT ...

Страница 170: ...al 2Mb s Mux Demux Options UKJ USA UKN USA 21 Ensure that the ratio of ve and ve pulse amplitudes is between 0 95 and 1 05 22 Ensure that the ratio of ve and ve pulse widths is between 0 95 and 1 05 23 Disconnect all test equipment ...

Страница 171: ... is then applied to the Structured PDH Test Set and a BER test is performed to verify the integrity of the 2 Mb s signal The output from the DROP Port is then applied to an oscilloscope and the waveform characteristics are checked to ensure they meet specifications Equipment Required NOTE The Test Set used in this procedure is an HP 37717C Option UKJ Any other Structured PDH Test Set capable of ge...

Страница 172: ...ions UKL USC Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect the equipment as shown in Figure 3 28 Figure 3 28 External 2 Mb s Demux 3 Press on the Test Set and set up the display as shown opposite TRANSMIT MAIN SETTINGS ...

Страница 173: ...4 Press on the Test Set and set up the display as shown opposite 5 Press on the Test Set and set up the display as shown opposite 6 Press on the HP 37717C and set the display as shown below TRANSMIT STRUCTURED SETTINGS RECEIVE MAIN SETTINGS RECEIVE MAIN SETTINGS ...

Страница 174: ...nd a 75Ω termination Set the oscilloscope termination to 1MΩ and press 11 Adjust the Oscilloscope Timebase and Delay to position the positive peak pulse amplitude at mid pulse width point in the centre of the screen 12 Measure the peak pulse amplitude at mid pulse width using the Oscilloscope and verify that this is between 2 133V and 2 607V 13 Select the 2Mb G 703 mask on the oscilloscope and sto...

Страница 175: ...nce to display the isolated negative pulse Select menu Set trigger level to middle of negative pulse Set trigger to pattern Set sequence to H X X Figure 3 30 2 Mb s Isolated Positive Pulse 17 Use the oscilloscope to display an inverted mask on the oscilloscope 18 Adjust the oscilloscope timebase and vertical sensitivity controls to verify that the pulse meets the mask as shown in Figure 3 31 Use t...

Страница 176: ...ptions UKL USC Figure 3 31 2 Mb s Isolated Negative Pulse 20 Ensure that the ratio of ve and ve pulse amplitudes is between 0 95 and 1 05 21 Ensure that the ratio of ve and ve pulse widths is between 0 95 and 1 05 22 Disconnect all test equipment ...

Страница 177: ...ve at half the bit rate which corresponds to a ternary all ones signal The receiver should sync up with no errors if PATTERN ALL ONES is selected Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect up the equipment as shown in Figure 3 32 3 Set the oscilloscope to TERMINATION 1 MΩ PROBE 1 1 Bit Rate Nominal Loss Equalization at 1 2 Bit Rate 704 kb s 20dB ...

Страница 178: ...ress until the Monitor led is lit 5 Select TEST TIMING SINGLE 5 SECS 6 Press and set up the display as shown below 7 Set the Synthesizer to FREQUENCY 352 KHz sinewave AMPLITUDE 237 5 mV pk pk 26dB down as measured on the oscilloscope 8 Press and verify that no errors are displayed at the end of the test period 5 seconds RECEIVE SIGNAL IN RESULTS TIMING CONTROL RESULTS RUN STOP ...

Страница 179: ...scilloscope 14 Press and verify that no errors are displayed at the end of the test period 5 seconds 34 368 Mb s 15 Select SIGNAL 34 Mb s on the display 16 Set the Synthesizer to FREQUENCY 17184 KHz sinewave AMPLITUDE 71 mV pk pk 29dB down as measured on the oscilloscope 17 Press and verify that no errors are displayed at the end of the test period 5 seconds 139 264 Mb s 18 Select SIGNAL 140 Mb s ...

Страница 180: ... is also checked with Pattern Sync Loss to verify that pulses are still present at 16 Clock Period intervals Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect the HP 37717C SIGNAL OUT 75Ω port to the SIGNAL IN 75Ω port 3 Connect the HP 37717C ERROR OUT port to the Oscilloscope Channel 1 via the Blocking Capacitor terminate scope in 1MΩ 4 Select SIGNAL 2...

Страница 181: ...of the Oscilloscope to display two pulses 10 Check that the pulse period is approximately 488uS 1 pulse per error 1000 clock periods 11 Press and set the TEST FUNCTION ERROR ADD RATE to OFF to stop the error add Check that pulses are no longer present on the Oscilloscope 12 Select PATTERN 2 23 1 on the display and check that the Pattern Loss LED is lit 13 Adjust the Timebase and Range of the Oscil...

Страница 182: ...ll Ones Ternary Signal the HP 37717C receiver should sync up with no errors if set to PATTERN ALL ONES The Frequency Measurement accuracy of the HP 37717C can be determined by comparison with the frequency displayed on the Synthesizer Frequency Offset Measurement is also verified during this test as the HP 37717C will display deviation from the expected Signal In frequency in ppm The PDH transmitt...

Страница 183: ... USC UKN USE Figure 3 33 Receiver Frequency Measurement Test Setup 3 Set the Synthesizer to FREQUENCY 1024 000 kHz sinewave AMPLITUDE 10dBm 4 Set the frequency counter to RATIO A B 5 Press and set up the display as shown opposite 6 Press and set up the display as shown opposite RECEIVE TRANSMIT ...

Страница 184: ... and 2047 810 kHz 13 Verify that the Offset displayed is between 93 ppm and 107 ppm The frequency counter should read 1 00 14 Set the synthesizer and the HP 37717C to the settings given in Table 3 3 and verify the displayed Offset at each point RESULTS RESULTS RESULTS Table 3 3 Measured Offset Option Receive Frequency Synthesizer Frequency Synthesizer Level Displayed Offset UKK USB 704 kb s 352 00...

Страница 185: ...ns UKK USB UKJ USA UKL USC UKN USE UKK USB UKJ USA 140 Mb s 69 625 036 kHz 4 dBm 93 to 107 ppm UKK USB UKJ USA 140 Mb s 69 638 963 kHz 4 dBm 93 to 107 ppm Table 3 3 Measured Offset continued Option Receive Frequency Synthesizer Frequency Synthesizer Level Displayed Offset ...

Страница 186: ... the data is clocked by the internal 10MHz clock oscillator The test limits assume the instrument is within the annual calibration cycle The STM 1 Framing is disabled for this test using the MODULE DEBUG function of the HP 37717C Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect the HP 37717C STM 1 OUT port to the Frequency Counter Input A terminated in...

Страница 187: ...site CAUTION When using the display ONLY modify the STM 1 TEST PATTERN Altering other parameters can damage instrument firmware exit this display after setup to eliminate any possibility of accidental modification 5 Adjust the Frequency Counter Trigger Level to obtain a stable reading and ensure that the Frequency Counter reads between 77 759650 MHz and 77 760350 MHz 6 Disconnect all the test equi...

Страница 188: ... clock oscillator A measurement with no offset is performed to establish a reference Clock frequency The frequency accuracy is then measured over the specified offset range The STM 1 Framing is disabled during this test using the function of the HP 37717C Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect the STM 1 OUT port to the Frequency Counter termi...

Страница 189: ...lay ONLY modify the STM 1 TEST PATTERN Altering other parameters can damage instrument firmware exit this display after setup to eliminate any possibility of accidental modification 5 Adjust the Frequency Counter Trigger Level to obtain a stable reading 6 Take note of the measured frequency MF 7 Select the frequency offset settings given in Table 3 4 and verify the frequency at each step against t...

Страница 190: ... Offset Offset ppm Min Expected Frequency Max Expected Frequency 100ppm MF 0 00010452 x MF MF 0 00009548 x MF 66 6ppm MF 0 00007114 x MF MF 0 00006208 x MF 33 3ppm MF 0 00002878 x MF MF 0 00003782 x MF 100ppm MF 0 00009548 x MF MF 0 00010452 x MF 999ppm MF 0 00099448 x MF MF 0 00100352 x MF 999ppm MF 0 00100352 x MF MF 0 00099448 x MF ...

Страница 191: ...S 2MHz Clock 1 Connect the STM 1 OUT port to the STM 1 IN port and Recall HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Press and set up the display as shown opposite 3 Connect the HP 3335A to the HP 37717C Unbalanced 75Ω 2M REF IN port EXT MTS clock 4 Set the HP 3335A to 2 048 MHz at 2 0V p p Accepts Timing Reference as per ITU G 811 Synthesizer HP 3335A option 001 75Ω 2 Mb s PDH Test Set HP 37717...

Страница 192: ...EF IN port 13 Press to start the measurement and check that the RESULTS display reads NO TROUBLE and all the Alarm leds are off 14 Disconnect the HP 3335A and check that the CLOCK LOSS led is on 15 Connect the HP 3335A via the 75Ω 120Ω Converter to the 120Ω 2M REF IN port 16 Press and check that the RESULTS display reads NO TROUBLE and all the Alarm leds are off BITS 1 5 Mb s Option 120 only 17 Se...

Страница 193: ...2kHz 2V p p signal 23 Connect the HP 3335A to the 100Ω 64K REF IN port 24 Press and check that the RESULTS display reads NO TROUBLE and all the Alarm leds are off STM 1 RX 25 Select CLOCK STM 1 RX 26 Set the HP 3335A to output a 77 760MHz 2V p p signal 27 Connect the HP 3335A to the STM 1 IN port and check that the CLOCK LOSS led is off Ignore any other Alarm leds RUN STOP ...

Страница 194: ...elected in turn The displayed waveshape is checked against the relevant ITU G 703 mask The STM 1 Framing is disabled during this test using the function of the HP 37717C Equipment Required Procedure CMI All Ones Waveshape 1 Connect up the equipment as shown in Figure 3 34 and recall HP 37717C DEFAULT SETTINGS as shown on 3 2 Figure 3 34 STM 1 Transmitter Output Waveshape Test Setup Meets ITU Recom...

Страница 195: ...er parameters can damage instrument firmware exit this display after setup to eliminate any possibility of accidental modification 4 Adjust the Oscilloscope controls to display the waveform as shown in Figure 3 35 STM 1 All Ones Pattern 5 Use the Oscilloscope PRINT function to obtain a printout of the STM 1 waveform on the external printer 6 Ensure this printout fits the STM 1 Mask of Figure 3 36 ...

Страница 196: ...STM 1 Transmitter Output Waveshape Options US1 US5 A1T A1U A3R A3S 120 Figure 3 35 STM 1 All Ones Pattern Figure 3 36 STM 1 All Ones Mask CMI All Zeros Waveshape 7 Select PATTERN ALL ZEROS on the DEBUG FUNCTION display OTHER ...

Страница 197: ... shown in Figure 3 37 STM 1 All Zeros Pattern Example 9 Use the Oscilloscope PRINT function to obtain a printout of the STM 1 waveform on the external printer 10 Ensure this printout fits the STM 1 Mask of Figure 3 38 NOTE If a mylar mask is not available the figure shown may be traced or photocopied onto a transparency Figure 3 37 STM 1 All Zeros Pattern ...

Страница 198: ...M 1 TEST PATTERN OFF on the DEBUG FUNCTION display 12 Select PATTERN 2 23 1 on the display 13 Adjust the Oscilloscope controls to display the eye diagram as shown in Figure 3 39 STM 1 Eye Diagram Example Check that the waveform meets the STM 1 eye diagram mask It may be necessary to adjust the V div gain on the Oscilloscope OTHER TRANSMIT ...

Страница 199: ...Output Waveshape Options US1 US5 A1T A1U A3R A3S 120 Figure 3 39 STM 1 Eye Diagram Pattern Figure 3 40 STM 1 Eye Diagram Mask NOTE If the mask is not available then Figure 3 40 may be traced copied and compared with the Oscilloscope print out ...

Страница 200: ... for error free operation Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH and RECEIVER INPUT SDH 3 Connect up the equipment as shown in Figure 3 41 Receiver Monitor Mode Selectable 20 dB of flat gain no equalization 3 dB Attenuator N type HP 8491A Option 003 6 dB Attenuator N type HP 8491A Option 006 75 50Ω Matching Pad N type HP...

Страница 201: ...ceiver Monitor Input 4 Press and select SIGNAL LEVEL STM 1 MONITOR 5 Verify that all the front panel ALARM leds are off 6 Press and and check that the display indicates NO TROUBLE 7 Press to halt the measurement 8 Disconnect all test equipment RECEIVE RESULTS TROUBLE SCAN RUN STOP RUN STOP ...

Страница 202: ... error free operation Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH and RECEIVER INPUT SDH 3 Connect up the equipment as shown in Figure 3 42 Receiver Monitor Mode Selectable 20 dB and 26 dB of flat gain 12 dB equalization at 1 2 Bit Rate 3 dB Attenuator N type HP 8491A Option 003 6 dB Attenuator N type 2 off HP 8491A Option 00...

Страница 203: ...el ALARM leds are off 7 Press and and check that the display indicates NO TROUBLE 8 Press to halt the measurement 9 Connect the second 6 dB Fixed Attenuator between the 3 dB attenuator and the Cable Attenuator 10 Press and select GAIN 26 dB 11 Press and and check that the display indicates NO TROUBLE 12 Disconnect all test equipment RECEIVE RESULTS TROUBLE SCAN RUN STOP RUN STOP RECEIVE RESULTS TR...

Страница 204: ...ator and checking for error free operation Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH and RECEIVER INPUT SDH 3 Connect up the equipment as shown in Figure 3 43 Receiver Monitor Mode 20 dB of flat gain 6dB Equalization at 1 2 Bit Rate 3 dB Attenuator N type HP 8491A Option 003 6 dB Attenuator N type HP 8491A Option 006 75 50Ω...

Страница 205: ...eiver Monitor Input 4 Press and select SIGNAL LEVEL STM 1 MONITOR 5 Verify that all the front panel ALARM leds are off 6 Press and and check that the display indicates NO TROUBLE 7 Press to halt the measurement 8 Disconnect all the test equipment RECEIVE RESULTS TROUBLE SCAN RUN STOP RUN STOP ...

Страница 206: ...quipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH and RECEIVER INPUT SDH 3 Connect the STM 1 OUT port to the STM 1 IN port via the Cable Attenuator 4 Verify that all the front panel Alarm leds are off 5 Press and check that the display indicates NO TROUBLE 6 Press to halt the measurement 7 Disconnect all the test equipment Receiver ...

Страница 207: ...level The receiver sensitivity is verified by attenuating the transmitter output and checking for no errors in a back to back mode Wavelength 1280 nm to 1330 nm Fiber Power Output 9 dBm nominal Line Coding NRZ Safety Class Class 1 FDA 21 CFR Ch 1 1040 10 and EN 60825 Data Rate 155 52 Mb s Nominal Wavelength 1200 nm to 1600 nm Maximum Input Power 8 dBm for BER of 1 0E 10 Line Coding NRZ Dynamic Ran...

Страница 208: ...grity of these connectors Make all connections to the HP 37717C Fiber Optic Interfaces before powering up the instrument Procedure 1 Connect the STM 1 Optical Out Port to the HP 8153A ensure that all connections are tight and that the cable has no twists 2 Switch on the HP 37717C check that immediately on power up the LASER ON led on the front panel illuminates for a few seconds and Recall the HP ...

Страница 209: ...as no twists 11 Press on the HP 37717C and select SIGNAL STM 1 OPT 12 Adjust the Optical Attenuator to obtain a reading of 28 dBm on the Power Meter 13 Press select STORED SETTINGS NUMBER 0 Default Settings and press 14 Verify that the front panel LASER ON led is off before continuing 15 Disconnect the Optical Attenuator Output from the HP 8153A and connect to the HP 37717C Optical In Port 16 Pres...

Страница 210: ...is checked for power level The receiver sensitivity is verified by attenuating the transmitter output and checking for no errors in back to back mode Wavelength 1280 nm to 1330 nm Power Output 10 dBm Nominal Line Coding NRZ Safety Class Class 1 FDA 21 CFR Ch 1 1040 10 and EN 60825 Data Rate 155 52 Mb s or 622 08 Mb s Nominal Wavelength 1200 nm to 1600 nm Maximum Input Power 8 dBm for BER of 1 0E 1...

Страница 211: ... Optic Interfaces before powering up the instrument Procedure 1 Connect the STM 4 Optical Out Port to the HP 8153A ensure that all connections are tight and that the cable has no twists 2 Switch on the HP 37717C check that immediately on power up the LASER ON led on the front panel illuminates for a few seconds and Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 3 Recall default settings on ...

Страница 212: ...TM 1 OPT 14 Adjust the Optical Attenuator to obtain a reading of 26 dBm on the Power Meter 15 Press select STORED SETTINGS NUMBER 0 Default Settings and press 16 Verify that the front panel LASER ON led is off before continuing 17 Disconnect the Optical Attenuator Output from the HP 8153A and connect to the HP 37717C Optical In Port 18 Press then and select TRANSMITTER AND RECEIVER COUPLED 19 Pres...

Страница 213: ...tion with identical Tx and Rx patterns selected The signal level to the Optical Rx input is measured using the Power Meter and adjusted using the Optical Attenuator for the required minimum and maximum levels Wavelength 1520 nm to 1565 nm Power Output 1 dBm Nominal Line Coding NRZ Safety Class Class 1 FDA 21 CFR Ch 1 1040 10 and EN 60825 Data Rate 155 52 Mb s or 622 08 Mb s Nominal Wavelength 1200...

Страница 214: ...use Always examine the ends of each fibre optic cable before use and if visible contamination is present DO NOT USE Dirt is easily transferred to the Optical Module connector causing permanent damage The cable should be replaced or cleaned If cleaning refer to Hewlett Packard booklet Lightwave Connection Techniques for better measurements HP Part Number 08703 90028 Procedure 1 Set the Optical Atte...

Страница 215: ... check that immediately on power up the Optical Module LASER ON led illuminates for a few seconds and Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 4 Press on the HP 37717C and set up the display as shown opposite 5 Verify that the Optical Module LASER ON led is lit indicating that the laser is enabled 6 Adjust the level to obtain a reading of 8dBm on the Power Meter Typically around 6dB o...

Страница 216: ...Meter 19 Press on the HP 37717C and select SIGNAL STM 1 20 Verify that the Optical Module LASER ON led is NOT lit indicating that the laser is disabled before continuing 21 Disconnect the optical cable from the Power Meter and connect to the HP 37717C STM1 4 Optical Rx Input 22 Press on the HP 37717C and select SIGNAL STM 4 OPT 23 Press then to start the measurement 24 After 5 minutes check that N...

Страница 217: ...e Optical Attenuator until the amplitude is 150mV NOTE If the input power is greater than 8 dBm then the Optical Electrical converter is liable to saturate 33 Disconnect the output of the O E Converter from the oscilloscope and connect instead to the HP 37717C STM1 4 Optical Module Monitor Input 34 Press on the HP 37717C and set up the display as shown opposite 35 Press then to start the measureme...

Страница 218: ...ivity is verified by attenuating the transmitter output and checking for no errors in back to Wavelength UKT 1280 nm to 1330 nm USN 1280 nm to 1330 nm or 1520 nm to 1565 nm Power Output 1310 nm 10 dBm Nominal 1550 nm 1dBm Nominal Line Coding NRZ Safety Class Class 3A FDA 21 CFR Ch 1 1040 10 and EN 60825 Data Rate 155 52 Mb s or 622 08 Mb s Nominal Wavelength 1200 nm to 1600 nm Maximum Input Power ...

Страница 219: ... laser signals which can cause serious injury The guidelines below must be followed Check the connector configuration of the Fiber Optic Interfaces If these are fitted with a connector interface other than FC PC then remove the existing connector interface and fit the FC PC connector interface Check for any damage to the HP 37717C Fiber Optic Interface spring loaded aperture covers and connectors ...

Страница 220: ...L STM 1 OPT 1310 nm 6 Verify that the front panel LASER ON led is on indicating the laser is enabled 7 Check the HP 8153A Power Meter reading is between 15 dBm and 8 dBm Typically 10 dBm 8 Press on the HP 37717C and select SIGNAL STM 4 OPT 1310 nm 9 Repeat steps 6 and 7 10 Press select STORED SETTINGS NUMBER 0 Default Settings and press 11 Verify that the front panel LASER ON led is off before con...

Страница 221: ...l Electrical Converter input 25 Connect the output from the Optical Electrical Converter to the Oscilloscope using the SMA BNC adaptor and 50Ω BNC cable 26 Set the Dual Power Supply to 12V and 12V then connect to the HP 83442A O E Converter and switch on CAUTION Take care to connect the supply correctly as incorrect voltage or polarity could result in damage to the HP 83442A Refer to HP 83442A Ope...

Страница 222: ...AL STM 1 OPT 1310 nm in step 27 and STM 1 MON in step 31 Procedure Option USN only 37 Set the Optical Attenuator to WAVELENGTH 1550 nm CAL 0 Connect the HP 37717C 1550 nm Optical Out Port to the HP 8153A Power Meter via the HP 8157A Optical Attenuator set to ATTEN 10 dB ensure that all connections are tight and that optical cables have no twists or tight bends 38 Setup the HP 8153A as follows a Pr...

Страница 223: ... HP 37717C DEFAULT SETTINGS as shown on Page 3 2 44 Verify that the Optical Module LASER ON led is NOT lit indicating that the laser is disabled before continuing 45 Disconnect the optical cable from the Power Meter and connect to the HP 37717C Optical IN Port 46 Press on the HP 37717C and set up the display as shown opposite 47 Press on the HP 37717C and select SIGNAL STM 4 OPT 1550 nm 48 Press t...

Страница 224: ...ed on the HP 37717C display Press to stop the measurement 61 Repeat steps 50 through 60 selecting SIGNAL STM 1 OPT 1550 nm in steps 53 and 58 and 34dBm in step 54 62 Recall the HP 37717C DEFAULT SETTINGS as shown on Page 3 2 63 Verify that the Optical Module LASER ON led is NOT lit indicating that the laser is disabled before continuing 64 Disconnect the optical cable from the HP 37717C STM1 4 Opt...

Страница 225: ...Converter from the oscilloscope and connect instead to the HP 37717C STM1 4 Optical Module Monitor Input 71 Press on the HP 37717C and set up the display as shown opposite 72 Press then to start the measurement 73 After 5 minutes check that NO TROUBLE is displayed on the HP 37717C display Press to stop the measurement 74 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 75 Verify that the Opti...

Страница 226: ... is verified by attenuating the transmitter output and checking for no Wavelength 130 1280 nm to 1330 nm 131 1280 nm to 1330 nm or 1520 nm to 1565 nm Power Output 1310 nm 10 dBm Nominal 1550 nm 1dBm Nominal Line Coding NRZ Safety Class Class 3A FDA 21 CFR Ch 1 1040 10 and EN 60825 Data Rate 51 84 Mb s or 155 52 Mb s or 622 08 Mb s Nominal Wavelength 1200 nm to 1600 nm Maximum Input Power 8 dBm for...

Страница 227: ... followed Check the connector configuration of the Fiber Optic Interfaces If these are fitted with a connector interface other than FC PC then remove the existing connector interface and fit the FC PC connector interface Check for any damage to the HP 37717C Fiber Optic Interface spring loaded aperture covers and connectors Do not power up the instrument if in any doubt about the integrity of thes...

Страница 228: ...abled 7 Check the HP 8153A Power Meter reading is between 15 dBm and 8 dBm Typically 10 dBm 8 Press on the HP 37717C and select SIGNAL STM 4 OPT 1310 nm 9 Repeat steps 6 and 7 10 Press on the HP 37717C and select SIGNAL STM 0 OPT 1310 nm 11 Repeat steps 6 and 7 12 Press select STORED SETTINGS NUMBER 0 Default Settings and press 13 Verify that the front panel LASER ON led is off before continuing 1...

Страница 229: ...s shown on 3 2 27 Disconnect the optical cable from the HP 37717C STM1 4 Optical IN Port and connect to the HP 83442A Optical Electrical Converter input 28 Connect the output from the Optical Electrical Converter to the Oscilloscope using the SMA BNC adaptor and 50Ω BNC cable 29 Set the Dual Power Supply to 12V and 12V then connect to the HP 83442A O E Converter and switch on CAUTION Take care to ...

Страница 230: ... indicating that the laser is disabled before continuing 39 Repeat steps 26 through 38 selecting SIGNAL STM 1 OPT 1310 nm in step 30 and STM 1 MON in step 34 40 Repeat steps 26 through 38 selecting SIGNAL STM 0 OPT 1310 nm in step 30 and STM 1 MON in step 34 Procedure Option 130 only 41 Set the Optical Attenuator to WAVELENGTH 1550 nm CAL 0 Connect the HP 37717C 1550 nm Optical Out Port to the HP ...

Страница 231: ...at the laser is enabled 46 Adjust the level to obtain a reading of 8dBm 1dB on the Power Meter Typically around 7dB of attenuation will be required to achieve this reading 47 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 48 Verify that the Optical Module LASER ON led is NOT lit indicating that the laser is disabled before continuing 49 Disconnect the optical cable from the Power Meter and ...

Страница 232: ... 37717C Optical IN Port 62 Press on the HP 37717C and select SIGNAL STM 4 OPT 1550 nm 63 Press then to start the measurement 64 After 5 minutes check that NO TROUBLE is displayed on the HP 37717C display Press to stop the measurement 65 Repeat steps 54 through 64 selecting SIGNAL STM 1 OPT 1550 nm in steps 57 and 62 and 34dBm 1dB in step 58 66 Repeat steps 54 through 64 selecting SIGNAL STM 0 OPT ...

Страница 233: ... the Optical Electrical converter is liable to saturate 75 Disconnect the output of the O E Converter from the oscilloscope and connect instead to the HP 37717C STM1 4 Optical Module Monitor Input 76 Press on the HP 37717C and set up the display as shown opposite 77 Press then to start the measurement 78 After 5 minutes check that NO TROUBLE is displayed on the HP 37717C display Press to stop the ...

Страница 234: ...ccuracy intrinsic jitter Range 1 0 01 UI Range 10 0 1 UI Intrinsic Jitter 2 Mb s 0 02 UI Intrinsic Jitter 8 Mb s 0 02 UI Intrinsic Jitter 34 Mb s 0 03 UI Intrinsic Jitter 140 Mb s 200 Hz to 5 kHz 0 10 UI 5 kHz to 10 kHz 0 05 UI 10 kHz 0 02 UI Frequency Range 2 Hz to 4 MHz Frequency Accuracy 1 Corner and Cut off Frequencies Data Rate Corner Frequency Cut off Frequency 2 Mb s 13 kHz 102 kHz 8 Mb s 5...

Страница 235: ...e UI pk pk displayed on the HP 37717C is checked to ensure it is within specified limits Equipment Required Pre Adjustment Setup Before carrying out any adjustments to the HP 37717C Jitter Transmitter Module perform the following pre adjustment setup CAUTION This procedure uses the special display on the HP 37717C When using the display ONLY modify the parameters shown Altering other parameters ca...

Страница 236: ... select MODULE PDH Module Set the VCO Control Mode to FIXED CAUTION The sequence above must be performed each time the power is cycled on the HP 37717C as all parameters adopt DEFAULT values when power is cycled Procedure Transmitted Jitter Amplitude Accuracy on Range 1 1 Setup the HP 37717C display as shown opposite MODULE DEBUG OTHER MORE MORE MORE OTHER MORE MODULE DEBUG MODULE DEBUG MODULE DEB...

Страница 237: ...ime 1 0 s Video Bandwidth 1 kHz Resolution Bandwidth 100Hz 4 Connect up the equipment as shown in Figure 3 44 Figure 3 44 TX Jitter Accuracy Test Setup 5 Adjust the HP 37717C jitter amplitude until the first Bessel Null is observed on the Spectrum Analyzer i e first dip in the carrier level As an example Figure 3 45 shows the first Bessell Null for 34MHz 6 Ensure the Jitter amplitude displayed on ...

Страница 238: ...ency and Amplitude to the values given in columns 2 and 3 of the table Fine tune the amplitude to obtain the lowest carrier level on the Spectrum Analyzer display and check that the jitter amplitude displayed on the HP 37717C is between the limits given in columns 4 and 5 of Table 3 5 Figure 3 45 Bessel Null Example Table 3 5 Range 1 Tx Jitter Amplitude Accuracy Bit Rate Center Frequency Modulatio...

Страница 239: ...th 1 kHz Resolution Bandwidth 100Hz 11 Adjust the HP 37717C jitter amplitude until the second Bessel Null is observed on the Spectrum Analyzer i e second dip in the carrier level 12 Ensure the Jitter amplitude displayed on the HP 37717C is between the minimum and maximum limits given in Table 3 6 13 Check the Jitter accuracy for each value in Table 3 6 In each case set the HP 37717C Rate and Spect...

Страница 240: ...layed on the HP 37717C is between the limits given in columns 4 and 5 of Table 3 6 Table 3 6 Range 10 Tx Jitter Amplitude Accuracy Bit Rate Center Frequency Modulation Frequency Jitter Amplitude UI Minimum Jitter UI Maximum Jitter UI 2048kHz 2400Hz 1 8 1 5 2 0 2048kHz 2400Hz 4 8 4 4 5 1 2048kHz 2400Hz 8 8 8 2 9 3 8448kHz 10700Hz 1 8 1 5 2 0 8448kHz 10700Hz 5 8 5 3 6 2 8448kHz 10700Hz 8 8 8 2 9 3 3...

Страница 241: ...accuracy intrinsic jitter High Frequency accuracy STM 1E only Range 1 0 01 UI Range 10 0 1 UI Range 50 0 5 UI Range 80 1 0 UI Range 200 2 0 UI Intrinsic Jitter 2 Mb s 0 02 UI Intrinsic Jitter 8 Mb s 0 02 UI Intrinsic Jitter 34 Mb s 0 03 UI Intrinsic Jitter 140 Mb s 200 Hz to 5 kHz 0 10 UI 5 kHz to 10 kHz 0 05 UI 10 kHz 0 02 UI Intrinsic Jitter 155 52 Mb s 10 kHz 0 04 UI 10 kHz 0 03 UI Intrinsic Ji...

Страница 242: ...nsic jitter Amplitude Accuracy 2 Mb s 1 0 UI Amplitude Accuracy 155 Mb s 0 5 UI Amplitude Accuracy 622 Mb s 0 5 UI Intrinsic Jitter 2 Mb s 0 1 UI Intrinsic Jitter 155 Mb s 0 1 UI Intrinsic Jitter 622 Mb s 0 1 UI Frequency Range 0 000010 Hz to 0 125000 Hz Frequency Accuracy 1 Bit Rate 2 048 Mb s 100 ppm Format Clock or HDB3 Data Peak Level Balanced 3V 10 Unbalanced 2 37V 10 Input Range 10 UI 2 UI V...

Страница 243: ...viation result is based upon the level of jitter amplitude and the modulating frequency Jitter generation at 622 Mb s is a function of the HP 37717C firmware and is based on jitter generation at 155 Mb s and is not tested in this performance test For external jitter generation a modulating signal is input from the synthesizer at the MOD input of the A3K module The amplitude of the modulating signa...

Страница 244: ...hen using the display ONLY modify the parameters shown Altering other parameters can damage instrument firmware exit the display after setup to prevent accidental damage 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Setup the HP 37717C display as shown opposite Communications Performance Analyzer HP 37717C Opt UHN Spectrum Analyzer HP 8568B Opt 001 Oscilloscope HP 54503A Modulation Ana...

Страница 245: ...elect MODULE PDH Module Set the VCO Control Mode to FIXED CAUTION The sequence above must be performed each time the power is cycled on the HP 37717C as all parameters adopt DEFAULT values when power is cycled Procedure Transmitted PDH Jitter Amplitude Accuracy on Range 1 1 Select and setup the HP 37717C display as shown opposite MODULE DEBUG OTHER MORE MORE MORE OTHER MORE MODULE DEBUG MODULE DEB...

Страница 246: ...tion Bandwidth 100Hz 4 Connect up the equipment as shown in Figure 3 46 Figure 3 46 TX Jitter Accuracy Test Setup PDH Range 1 10 5 Adjust the HP 37717C jitter amplitude approximately 0 77 UI until the first Bessel Null is observed on the Spectrum Analyzer i e first dip in the carrier level As an example Figure 3 47 shows the first Bessell Null for 34MHz 6 Ensure the Jitter amplitude displayed on t...

Страница 247: ...e given in column 1 of the table Set the HP 37717C PATTERN to ALL ONES and jitter AMPLITUDE to minimum after each change of Bit Rate Set the HP 37717C Jitter Modulation Frequency and Amplitude to the values given in columns 2 and 3 of the table Fine tune the amplitude to obtain the lowest carrier level on the Spectrum Analyzer display and check that the jitter amplitude displayed on the HP 37717C ...

Страница 248: ... shown below 9 Select and setup the display as shown below Table 3 7 PDH Range 1 Tx Jitter Amplitude Accuracy Bit Rate Center Frequency Modulation Frequency Jitter Amplitude UI Minimum Jitter UI Maximum Jitter UI 2048kHz 2400Hz 0 77 0 69 0 83 8448kHz 10700Hz 0 77 0 69 0 83 34368kHz 4000Hz 0 77 0 69 0 83 139264kHz 4000Hz 0 77 0 68 0 84 TRANSMIT TRANSMIT JITTER ...

Страница 249: ...r Center Frequency to the value given in column 1 of the table Set the HP 37717C PATTERN to ALL ONES and the jitter AMPLITUDE to minimum after each change of Bit Rate Set the HP 37717C Jitter Modulation Frequency and Amplitude to the values given in columns 2 and 3 of the table Fine tune the amplitude to obtain the lowest carrier level on the Spectrum Analyzer display and check that the jitter amp...

Страница 250: ...2 Select and setup the display as shown opposite 34368kHz 4000Hz 6 8 6 2 7 3 34368kHz 4000Hz 8 8 8 2 9 3 139264kHz 4000Hz 3 8 3 3 4 2 139264kHz 4000Hz 7 8 7 1 8 4 139264kHz 4000Hz 8 8 8 1 9 4 Table 3 8 Range 10 Tx Jitter Amplitude Accuracy continued Bit Rate Center Frequency Modulation Frequency Jitter Amplitude UI Minimum Jitter UI Maximum Jitter UI TRANSMIT SDH TRANSMIT JITTER ...

Страница 251: ... SDH Ranges 1 10 5 Adjust the HP 37717C jitter amplitude approximately 0 77 UI until the first Bessel Null is observed on the Spectrum Analyzer i e first dip in the carrier level see Figure 3 47 6 Ensure the Jitter amplitude displayed on the HP 37717C is between 0 69 UI and 0 83 UI 7 Select RANGE 10 UI on the display and adjust the jitter amplitude until the second Bessel Null is observed on the S...

Страница 252: ...posite 3 Connect up the equipment as shown in Figure 3 49 Figure 3 49 TX Jitter Accuracy Test Setup SDH Range 50 4 Press the FREQ key on the Modulation Analyzer and check that a frequency of 155 52 MHz is displayed If 155 52 MHz is not displayed ENTER 155 52 MHz via the keypad 5 Press FM 3kHz and Peak keys on the Modulation Analyzer and check that the result displayed is 62 4 kHz 3 95kHz TRANSMIT ...

Страница 253: ...s shown opposite 3 Connect up the equipment as shown in Figure 3 50 Figure 3 50 TX Jitter Accuracy Test Setup PDH Range 80 4 Press the FREQ key on the Modulation Analyzer and check that a frequency of 1 024 MHz is displayed If 1 024 MHz is not displayed ENTER 1 024 MHz via the keypad 5 Press FM 3kHz and Peak keys on the Modulation Analyzer and check that the result displayed is 6 24 kHz 480 Hz TRA...

Страница 254: ...C display as shown opposite 2 Select and setup the display as shown opposite 3 Set the Spectrum Analyzer as follows Centre Frequency 2048 kHz Frequency Span 25 kHz Reference Level 0 dBm Sweep Time 1 0 s Video Bandwidth 1 kHz Resolution Bandwidth 100Hz 4 Set the Synthesizer to Frequency 10 kHz and minimum Output Level TRANSMIT TRANSMIT JITTER ...

Страница 255: ... 51 Figure 3 51 External Jitter Generation 6 Increase the Synthesizer output level until the first Bessel Null is observed on the Spectrum Analyzer 7 Check that the amplitude of the Oscilloscope waveform is between 1 76V pk_pk and 2 84V pk_pk Wander Generation 1 Select and setup the Test HP 37717C display as shown opposite TRANSMIT ...

Страница 256: ...de Accuracy Option A3K A3Q 2 Select and setup the Test HP 37717C display as shown opposite 3 Connect up the equipment as shown in Figure 3 52 Figure 3 52 Wander Generation 4 Set the Synthesizer to Frequency 2 048 MHz and Output Level 5V pk_pk TRANSMIT JITTER ...

Страница 257: ... setup the Reference HP 37717C display as shown opposite 7 Select and setup the Reference HP 37717C display as shown opposite 8 Press and check that at the end of the measurement period 10 seconds the display PEAK PEAK result is 80 000 BITS 5 5 BITS 9 Disconnect all the test equipment RECEIVE PDH RECEIVE JITTER RESULTS TIMING CONTROL RUN STOP RESULTS WANDER WANDER ...

Страница 258: ...utine This routine is automatic and tests all parameters except Hit Count and Demodulated Jitter Output Hit Count is tested by connecting PDH Signal Out to PDH Signal In with the transmitted jitter amplitude just exceeding the receiver Hit Threshold and a check made to ensure the Hit count is within the modulation frequency accuracy limits The Demodulated Jitter Output is verified for accuracy by ...

Страница 259: ... Output must be attenuated by 10 dB before connecting to the optical input of the Jitter Receiver Module Failure to do this could result in damage to the HP 37717C Refer to the Recommended Test Equipment Table for a suitable attenuator 4 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 5 Setup the HP 37717C display as shown opposite 6 Set CALIBRATE PASSWORD 1243 7 Select CALIBRATION ITEM JITT...

Страница 260: ... A1R A1P A1S A3L A3M A3V A3W A3N A3P Hit Count 8 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 9 Setup the HP 37717C display as shown opposite 10 Select and setup the display as shown opposite 11 Setup the 37717C display as shown opposite RECEIVE RECEIVE JITTER TRANSMIT ...

Страница 261: ...site Press to start the measurement When the measurement is complete check the displayed Hit Count is between 211 860 and 216 140 Demodulated Jitter Output 15 Connect the HP 37717C Demodulated Jitter Output to the oscilloscope terminated in 75Ω 16 Check that the amplitude of the 10 7 kHz displayed waveform is between 435mV pk_pk and 565mV pk_pk 17 Disconnect all test equipment TRANSMIT JITTER RESU...

Страница 262: ...ce 75Ω Unbalanced nominal 120Ω Balanced nominal Peak Level 2 37V 10 unbalanced 3V 10 balanced Indication If no reference input signal is present NO REF is displayed Connectors BNC unbalanced 3 pin Siemens audio balanced Wander Measurement Bandwidth Low pass response 3dB at 10Hz nominal Resolution 0 125 UI Accuracy 0 125 UI 0 5 of reading valid up to 1Hz wander frequency Range 99999 UI Alarm Indica...

Страница 263: ... of the Reference Input and used to count the received input bits In the second part of the test Wander and Slips measurements are verified using two Clock Sources one as input to the Receiver port and the other as input to the Reference port The sources are locked together but with one source offset by a known frequency This provides a known number of Bit Slips which are counted and displayed by ...

Страница 264: ...s POSITIVE PEAK WANDER and NEGATIVE PEAK WANDER readings of 0 000 0 125 BITS 7 Press to stop the measurement 8 Disconnect the PDH OUT port from the unbalanced 75Ω TIMING REF INPUT and connect to the balanced 120Ω TIMING REF INPUT via the HP 15508C Balanced to Unbalanced Converter 9 Press and select WANDER REFERENCE 120Ω BAL 10 Press and verify that the display shows POSITIVE PEAK WANDER and NEGATI...

Страница 265: ... A1Q A1N A1R A1P A1S A3L A3M A3V A3W A3N A3P Slips and Wander 13 Connect up the equipment as shown in Figure 3 53 Figure 3 53 Slips and Wander Test Setup 14 Press and set up the Display as shown opposite 15 Press and set up the display as shown opposite TRANSMIT RECEIVE ...

Страница 266: ...WANDER WANDER and verify that the display shows the following NOTE In some cases the above two sets of results will all be on the same display 22 Select RESULTS WANDER BIT SLIPS 23 Set The Synthesizer connected to PDH IN to generate 1 023 889 6Hz and the Synthesizer connected to the TIMING REF INPUT to generate 2 047 795 2Hz and repeat steps 19 to 21 24 Set The Synthesizer connected to PDH IN to g...

Страница 267: ...ULTS WANDER WANDER and verify that the display shows the following NOTE In some cases the above two sets of results will all be on the same display ESTIMATED BIT SLIPS 955 to 964 ESTIMATED FRAME SLIPS 3 to 4 RUN STOP POSITIVE PEAK 955 125 to 964 875 BITS NEGATIVE PEAK 0 000 BITS PEAK TO PEAK 955 125 TO 964 875 BITS PEAK TO PEAK 15 MINUTE BITS PEAK TO PEAK 24 HOURS BITS TIME INTERVAL ERROR 955 125 ...

Страница 268: ... Receiver Module and checking for error free operation Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH and RECEIVER INPUT SDH JITTER 3 Connect the STM 1 OUT port on the SDH Module to the STM 1 JITTER IN port on the Jitter Receiver Module via the Cable Attenuator 4 Verify that all the front panel Alarm leds are off 5 Press and che...

Страница 269: ...ort The STM 1E Jitter Receiver monitor mode is verified by attenuating the signal by 20dB along with the cable attenuator and checking for error free operation Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH and RECEIVER INPUT SDH JITTER Receiver Monitor Mode 20 dB of flat gain 12dB Equalization at 1 2 Bit Rate 3 dB Attenuator N ...

Страница 270: ...3P is fitted connect both 6 dB attenuators between the Cable Attenuaton and STMN 1 IN Figure 3 54 STM 1 Receiver Monitor Input 4 Press until the Monitor led above the key is lit 5 Verify that all the front panel ALARM leds are off 6 Press and and check that the display indicates NO TROUBLE 7 Press to halt the measurement 8 Disconnect all the test equipment SIGNAL IN RESULTS TROUBLE SCAN RUN STOP R...

Страница 271: ...ity is verified by attenuating the transmitter output and checking for no errors in back to back mode Equipment Required Wavelength 1200 nm to 1600 nm Maximum Input Power 8 dBm for BER of 1 0E 10 Line Coding NRZ Dynamic Range 20 dB minimum Sensitivity 28 dBm Minimum wavelength 1300nm Modulation 100 Data 223 1 BER 1 0E 10 Power Meter HP 8153A Power Meter Sensor Module HP 81536A FC PC Connector Inte...

Страница 272: ...tical Out Port to the HP 8153A via the Optical Attenuator ensure that all connections are tight and that the cable has no twists Set the Optical Attenuator to ATTEN 0 dB WAVELENGTH 1310 nm CAL 0 2 Switch on the HP 37717C check that immediately on power up the LASER ON led on the Optical Module illuminates for a few seconds 3 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 4 Recall default se...

Страница 273: ... the STM Jitter Receiver Module 12 Press and select SIGNAL STM 1 OPT 13 Press and select SDH Jitter Set signal to STM 1 OPT 14 Press and then to start a measurement 15 After 5 minutes check that NO TROUBLE is displayed on the display 16 Press select STORED SETTINGS NUMBER 0 Default Settings and press 17 Verify that the LASER ON led is off 18 Disconnect the test equipment TRANSMIT SDH RECEIVE RESUL...

Страница 274: ...rified by attenuating the transmitter outputs and checking for no errors in back to back mode at both STM 1 and STM 4 rates Equipment Required Wavelength 1200 nm to 1600 nm Maximum Input Power 8 dBm for BER of 1 0E 10 Line Coding NRZ Dynamic Range 18 dB minimum Sensitivity 26 dBm Minimum wavelength 1300nm Modulation 100 Data 223 1 BER 1 0E 10 Power Meter HP 8153A Power Meter Sensor Module HP 81536...

Страница 275: ... 1 STM 4 Optical Out Port to the HP 8153A Power Meter via the Optical Attenuator ensure that all connections are tight and that the cable has no twists Set the Optical Attenuator to ATTEN 0 dB WAVELENGTH 1310 nm CAL 0 2 Switch on the HP 37717C check that immediately on power up the LASER ON led on the Optical Module illuminates for a few seconds and Recall the HP 37717C DEFAULT SETTINGS as shown o...

Страница 276: ...odule 12 Press and select SIGNAL STM 1 OPT 13 Press and select SDH Jitter Set signal to STM 1 OPT 14 Press and then to start a measurement 15 After 5 minutes check that NO TROUBLE is displayed on the display 16 Press select STORED SETTINGS NUMBER 0 Default Settings and press 17 Verify that the LASER ON led is off before continuing 18 Repeat steps 1 through 16 selecting SIGNAL STM 4 OPT on both the...

Страница 277: ... TTL into 75Ω to ground Nominal ECL into 75Ω to 2V Nominal TTL into 75Ω to ground Nominal ECL into 75Ω to 2V Clock I P Data I P Rate 700 kb s to 50 Mb s TTL 700 kb s to 50 Mb s TTL 700 kb s to 170 Mb s ECL 700 kb s to 170 Mb s ECL Format Nominal squarewave 60 40 to 40 60 duty cycle NRZ Logic Threshold 1 5V TTL 1 3V ECL ground signal mean level 1 5V TTL 1 3V ECL ground signal mean level Termination...

Страница 278: ...equipment as shown in Figure 3 55 Rate Option UKK USB Unstructured PDH 700 kb s to 50 Mb s TTL 700 kb s to 170 Mb s ECL Rate Option UKJ USA Structured PDH 2 048 Mb s 10 ECL TTL 8 448 Mb s 10 ECL TTL 34 368 Mb s 10 ECL TTL 139 264 Mb s 10 ECL only Format Nominal squarewave 60 40 to 40 60 duty cycle Logic Threshold 1 5V TTL 1 3V ECL ground signal mean level Termination Nominal TTL into 75Ω to ground...

Страница 279: ...ts PDH Binary Interfaces Option UH3 US7 Figure 3 55 External Clock Thresholds 3 Press and set up the display as shown opposite 4 Press and set up the display as shown opposite TRANSMIT PDH MAIN SETTINGS TRANSMIT PDH BINARY ...

Страница 280: ...ndicators are not lit 9 Select the following on the Digital Transmission Analyzer Frequency 700 kHz Pattern 215 1 10 Select SIGNAL 2 Mb s and PATTERN 215 1 on the HP 37717C and displays 11 Check that the HP 37717C Pattern Loss and Signal Loss indicators are not lit 12 Select Interface NRZ BIN TTL on the Digital Transmission Analyzer and THRESHOLDS EXT CLOCK TTL on the HP 37717C BINARY display 13 C...

Страница 281: ...tal Transmission Analyzer and connect the Signal Generator to the HP 37717C EXT CLOCK INPUT 17 Press and set up the display as shown opposite Check that the HP 37717C Pattern Loss and Signal Loss indicators are not lit Select THRESHOLDS EXT CLOCK GND and check that the HP 37717C Pattern Loss and Signal Loss indicators are not lit External Clock Mark to Space Ratio 1 Recall the HP 37717C DEFAULT SE...

Страница 282: ...to Frequency 700 kHz Output Level 500 mV and connect to the EXT CLOCK input port of the binary interfaces module 6 Connect the HP 37717C binary CLOCK O P to the oscilloscope via the 75Ω 50Ω matching pad and check that the mark space ratio of the displayed clock waveform is between 60 40 and 40 60 7 Press and set up the display as shown opposite TRANSMIT PDH MAIN SETTINGS TRANSMIT PDH BINARY TRANSM...

Страница 283: ...form is between 60 40 and 40 60 Structured PDH Option UKJ USA 1 Press and set up the display as shown opposite 2 Press and set up the display as shown opposite 3 Set the Signal Generator to Frequency 1 843 MHz Output Level 500 mV and connect to the EXT CLOCK input port of the binary interfaces module 4 Connect the HP 37717C binary CLOCK O P to the oscilloscope via the 75Ω 50Ω matching pad and chec...

Страница 284: ...pposite 9 Press and set up the display as shown opposite 10 Set the Signal Generator to Frequency 125 3 MHz Output Level 500 mV and connect to the EXT CLOCK input port of the binary interfaces module 11 Connect the HP 37717C binary CLOCK O P to the oscilloscope via the 75Ω 50Ω matching pad and the ECL termination and check that the mark space ratio of the displayed clock waveform is between 60 40 ...

Страница 285: ...rminate in 75 ohm 3 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counter reading is between 44735798 6 Hz and 44736201 4 Hz 4 Select the HP 37717C TRANSMIT page select PHYSICAL LAYER and set FREQUENCY OFFSET to 20PPM 5 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counte...

Страница 286: ... Hz 5 Set the FREQUENCY OFFSET to USER OFFSET 50PPM 6 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counter reading is between 2047883 2 Hz and 2047912 0 Hz E3 34 368Mb s Frequency Accuracy 1 Set the transmitter to Signal E3 34Mb s 2 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the fr...

Страница 287: ...unter reading is between 1543993 Hz and 1544007 Hz 3 Set the FREQUENCY OFFSET to 32PPM 4 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counter reading is between 1544042 4 Hz and 1544056 4 Hz 5 Set the FREQUENCY OFFSET to 32PPM 6 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the freque...

Страница 288: ...illoscope and the waveshape compared with the predefined masks stored in the oscilloscope memory The signal levels are also measured using the oscilloscope Rate Frequency Level Waveshape DSX 1 1 544Mb s 3 0V 20 Fits mask T1 102 1993 DS1 LO 1 544Mb s As DSX 1 with 655 ABAM Cable DS3 HI 44 736Mb s 0 9V pk nominal DSX 3 44 736Mb s 560mV pk nomi nal Fits mask T1 102 1993 DS3 900 44 736Mb s 330mV pk no...

Страница 289: ...s follows 4 Connect the Transmit Module Option UKZ 75 ohms Unbalanced Output to the Oscilloscope via the 75 50 ohm converter 5 Select CHAN on the oscilloscope and set to 50 ohms input impedance DC coupled 6 Select CHANNEL 1 on the oscilloscope and select PROBE 2 45 attenuation level to compensate for the 75 50 ohm converter 7 If using the HP 54503A oscilloscope use the following key sequence to se...

Страница 290: ...ust amplitude and offset parameters on the oscilloscope to obtain a PASS on the Mask 9 Measure the peak pulse amplitude at the mid pulse width using the oscilloscope and verify that this is between 900 mV and 1 100 Volts 34 368 Mb s Negative Pulse 1 Select the HP 37717C TRANSMIT page select ATM LAYER and set as follows 2 Select CHAN on the oscilloscope and set OFFSET to 500mV 3 Select TRIG on the ...

Страница 291: ... the waveform fits the mask and manually adjust amplitude and offset parameters on the oscilloscope to obtain a PASS on the Mask 8 Measure the peak pulse amplitude at the mid pulse width using the oscilloscope and verify that this is between 900 mV and 1 100 Volts 2 048 Mb s Positive Pulse 1 Recall the HP 37717C Default Settings as shown on 3 2 2 Select the HP 37717C TRANSMIT page select PHYSICAL ...

Страница 292: ...lecom Mask a DEFINE MEAS key b COMPARE softkey c TEST ON softkey d WFORM SAVE key e MASK CCITT G703 DS1E 2 0 Mb softkey f STORE to M1 M2 softkey g STORE softkey 8 Press the SHIFT key on the oscilloscope colored blue then MASK AUTO key then 1 key The oscilloscope will now automatically display and compare the isolated positive pulse from the HP 37717C with the limits in the selected Telecom Mask NO...

Страница 293: ...isplay 5 If using the HP 54503A oscilloscope use the following key sequence to select and store the correct Telecom Mask a WFORM SAVE key b MASK CCITT G703 DS1E 2 0 Mb softkey c STORE to M1 M2 e STORE INVERSE 6 Compare the isolated negative pulse from the HP 37717C with the limits in the selected Telecom Mask 7 Ensure the waveform fits the mask NOTE It may be necessary to visibly check the wavefor...

Страница 294: ...s follows 4 Connect the UKZ Transmit Module 75 ohms Unbalanced Output to the Oscilloscope via the 75 50 ohm converter 5 Select CHAN on the oscilloscope and set to 50 ohms input impedance DC coupled 6 Select CHANNEL 1 on the oscilloscope and select PROBE 2 45 attenuation level to compensate for the 75 50 ohm converter 7 If using the HP 54503A oscilloscope use the following key sequence to select an...

Страница 295: ... and manually adjust amplitude and offset parameters on the oscilloscope to obtain a PASS on the Mask DSX 3 Negative Pulse 1 Select the HP 37717C TRANSMIT page select ATM LAYER and set as follows 2 Select CHAN on the oscilloscope and set OFFSET to 270 mV 3 Select TRIG on the oscilloscope and set to PATTERN H X X X 4 Select TIMEBASE on the Oscilloscope and set DELAY to 186 nS Adjust the delay manua...

Страница 296: ...t parameters on the oscilloscope to obtain a PASS on the Mask DSX 1 Positive Pulse 1 Recall the HP 37717C Default Settings as shown on 3 2 2 Select the HP 37717C TRANSMIT page select PHYSICAL LAYER and set as follows 3 Select the HP 37717C TRANSMIT page select ATM LAYER and set as follows 4 Connect the UKZ Transmit Module 100 ohm Balanced Output to the Oscilloscope via the HP 15508B Balanced to un...

Страница 297: ...ftkey g STORE softkey 8 Press the SHIFT key on the oscilloscope colored blue then MASK AUTO key then 1 key The oscilloscope will now automatically display and compare the isolated positive pulse from the HP 37717C with the limits in the selected Telecom Mask NOTE It may be necessary to visibly check the waveform fits the mask and manually adjust amplitude and offset parameters on the oscilloscope ...

Страница 298: ...he following key sequence to select and store the correct Telecom Mask a WFORM SAVE key b MASK DS1 new 1 5 Mb ANSI T1 102 softkey c STORE to M1 M2 e STORE INVERSE 6 Compare the isolated negative pulse from the HP 37717C with the limits in the selected Telecom Mask 7 Ensure the waveform fits the mask NOTE It may be necessary to visibly check the waveform fits the mask and manually adjust amplitude ...

Страница 299: ...made for no errors in the results page 2 048Mb s Equalization 1 Recall the HP 37717C Default Settings as shown on 3 2 2 Press OTHER key then SETTINGS CONTROL softkey then set the TRANSMITTER and RECEIVER to COUPLED 3 Select the HP 37717C TRANSMIT page select PHYSICAL LAYER and set as follows Bit Rate Cable Loss Accommodation 2 048Mb s Up to 6dB for root f cable half bit rate 34 368Mb s Automatic e...

Страница 300: ...n the RESULTS page after 30 seconds 7 Press RUN STOP key to stop the measurement 34 368 Mb s Equalization 1 Select the HP 37717C TRANSMIT page select PHYSICAL LAYER and set as follows 2 Connect Cable Simulator 6 see Recommended Test Equipment in Chapter 1 on Page 67 between the HP 37717C Transmitter Output and Receiver Input ports 3 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measure...

Страница 301: ...C UKZ Unbalanced Transmitter Output and Receiver Input ports NOTE If Cable Simulator 5 is not available it is permissible to select DS3 900 on the Transmitter Page and connect the HP 37717C UKZ Unbalanced Transmitter Output port direct to the Receiver Input port This setup assumes the DS3 900 output signal is within specification 4 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurem...

Страница 302: ...ut and Receiver Balanced Input ports via two Balanced to Unbalanced Converters HP 15508B NOTE If Cable Simulator 6 is not available it is permissible to select DS1 LO on the Transmitter Page and connect the HP 37717C UKZ Unbalanced Transmitter Output port direct to the Receiver Input port This setup assumes the DS1 LO output signal is within specification 4 Press RESULTS TROUBLE SCAN then RUN STOP...

Страница 303: ... each selection of Bit Rate and monitor attenuation Bit Rate Cable Loss Accommodation Monitor mode Monitor Gain 2 048Mb s Unbalanced Mode Selectable OFF or Automatic Up to 6dB for root f cable half bit rate Selectable 20dB 26dB or 30dB 2 048Mb s Balanced Mode Selectable OFF or Automatic Up to 6dB 20dB selected or 3dB 26 or 30dB selected for root f cable half bit rate Selectable 20dB 26dB or 30dB 3...

Страница 304: ... LAYER and set as follows 3 Select the HP 37717C RECEIVE page select PHYSICAL LAYER and set as follows 4 Connect the equipment as shown in Figure 3 57 below no attenuation in the additional Attenuation position 5 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurement 6 Ensure that NO TROUBLE is displayed on the RESULTS page after 30 seconds 7 Press RUN STOP key to stop the measureme...

Страница 305: ...ress RUN STOP key to stop the measurement 2 048Mb s 30dB Monitor 13 Connect a fixed 6dB attenuator and a fixed 3dB Attenuator in the Additional Attenuation position of the circuit of Figure 3 57 14 Set the HP 37717C MONITOR GAIN to 30dB mode 15 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurement 16 Ensure that NO TROUBLE is displayed on the RESULTS page after 30 seconds 17 Press ...

Страница 306: ...art the measurement 6 Ensure that NO TROUBLE is displayed on the RESULTS page after 30 seconds 7 Press RUN STOP key to stop the measurement 34 368 Mb s 26dB Monitor 8 Connect a fixed 6dB Attenuator in the Additional Attenuation position of the circuit of Figure 3 57 9 Set the HP 37717C MONITOR GAIN to 26dB mode 10 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurement 11 Ensure that...

Страница 307: ...d set as follows 4 Connect the equipment as shown in Figure 3 57 below no attenuation in the additional Attenuation position 5 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurement 6 Ensure that NO TROUBLE is displayed on the RESULTS page after 30 seconds 7 Press RUN STOP key to stop the measurement DS3 26dB Monitor 8 Connect a fixed 6dB Attenuator in the Additional Attenuation pos...

Страница 308: ...wn on 3 2 2 Select the HP 37717C TRANSMIT page select PHYSICAL LAYER and set as follows 3 Select the HP 37717C RECEIVE page select PHYSICAL LAYER and set as follows 4 Connect the equipment as shown in Figure 3 57 below but use the Balanced DS1 output and input ports on the HP 37717C connected via two 110 75 ohm bal to Unbal converters 5 Press RESULTS TROUBLE SCAN then RUN STOP key to start the mea...

Страница 309: ...1 Ensure that NO TROUBLE is displayed on the RESULTS page after 30 seconds 12 Press RUN STOP key to stop the measurement DS1 30dB Monitor 13 Connect a fixed 6dB Attenuator and a fixed 3dB Attenuator in the Additional Attenuation position of the circuit of Figure 3 57 14 Set the HP 37717C MONITOR GAIN to 30dB mode 15 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurement 16 Ensure th...

Страница 310: ...fications only and does not require a full Performance test The HP 37717C is set up to generate and receive an errored PDH signal A frequency Counter terminated in 75 ohms and connected to the option UKZ Receive Module front panel Trigger Out Port is used to verify the presence of pulses at the appropriate received error rate Trigger Pulse 1 Recall the HP 37717C Default Settings as shown on 3 2 2 ...

Страница 311: ...elect the HP 37717C RECEIVE page select TRIGGERS and set as follows 6 Connect the Transmit Module Option UKZ 75 ohms Unbalanced Output to the Receive Module Option UKZ 75 ohms Unbalanced Input 7 Connect the Trigger Output port on the Receive Module Option UKZ to the Oscilloscope Channel A Terminate in 75 ohm 8 Press AUTOSCALE on the Oscilloscope and ensure the displayed Trigger Output pulse has TT...

Страница 312: ...3 203 Performance Tests Trigger Output Option UKZ Figure 3 57 Monitor Input Test Setup ...

Страница 313: ...clocked by the internal 10MHz clock oscillator The test limits assume the instrument is within the annual calibration cycle The STS 3 Framing is disabled for this test using the MODULE DEBUG function of the HP 37717C Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect the HP 37717C OUT port to the Frequency Counter Input A terminated in 75Ω use the T Conn...

Страница 314: ...TION When using the display ONLY modify the STM 1 TEST PATTERN Altering other parameters can damage instrument firmware exit this display after setup to eliminate any possibility of accidental modification 5 Adjust the Frequency Counter Trigger Level to obtain a stable reading and ensure that the Frequency Counter reads between 77 759650 MHz and 77 760350 MHz 6 Disconnect all the test equipment TR...

Страница 315: ...0MHz clock oscillator A measurement with no offset is performed to establish a reference Clock frequency The frequency accuracy is then measured over the specified offset range The STS 3 Framing is disabled during this test using the function of the HP 37717C Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Connect the OUT port to the Frequency Counter termina...

Страница 316: ...dify the STM 1 TEST PATTERN Altering other parameters can damage instrument firmware exit this display after setup to eliminate any possibility of accidental modification 5 Adjust the Frequency Counter Trigger Level to obtain a stable reading 6 Take note of the measured frequency MF 7 Select the frequency offset settings given in Table 3 9 and verify the frequency at each step against the measured...

Страница 317: ...set ppm Min Expected Frequency Max Expected Frequency 100ppm MF 0 00010452 x MF MF 0 00009548 x MF 66 6ppm MF 0 00007114 x MF MF 0 00006208 x MF 33 3ppm MF 0 00002878 x MF MF 0 00003782 x MF 100ppm MF 0 00009548 x MF MF 0 00010452 x MF 999ppm MF 0 00099448 x MF MF 0 00100352 x MF 999ppm MF 0 00100352 x MF MF 0 00099448 x MF ...

Страница 318: ...layed waveshape is checked against the relevant ITU G 703 mask The STS 3 Framing is disabled during this test using the function of the HP 37717C Equipment Required Procedure CMI All Ones Waveshape 1 Connect up the equipment as shown in Figure 3 58 and Recall HP 37717C DEFAULT SETTINGS as shown on 3 2 Figure 3 58 STS 3 Transmitter Output Waveshape Test Setup Meets ITU Recommendation G 703 MODULE D...

Страница 319: ...s can damage instrument firmware exit this display after setup to eliminate any possibility of accidental modification 4 Adjust the Oscilloscope controls to display the waveform as shown in Figure 3 59 STS 3 All Ones Pattern 5 Use the Oscilloscope PRINT function to obtain a printout of the STS 3 waveform on the external printer 6 Ensure this printout fits the STS 3 Mask of Figure 3 60 NOTE If a my...

Страница 320: ...rmance Tests STS 3 Transmitter Output Waveshape Option 120 Figure 3 59 STS 3 All Ones Pattern Figure 3 60 STS 3 All Ones Mask CMI All Zeros Waveshape 7 Select PATTERN ALL ZEROS on the DEBUG FUNCTION display OTHER ...

Страница 321: ...gure 3 61 STS 3 All Zeros Pattern Example 9 Use the Oscilloscope PRINT function to obtain a printout of the STS 3 waveform on the external printer 10 Ensure this printout fits the STS 3 Mask of Figure 3 62 NOTE If a mylar mask is not available the figure shown may be traced or photocopied onto a transparency Figure 3 61 STS 3 All Zeros Pattern ...

Страница 322: ...TERN OFF on the DEBUG FUNCTION display 12 Select PATTERN 2 23 1 on the display 13 Adjust the Oscilloscope controls to display the eye diagram as shown in Figure 3 63 STS 3 Eye Diagram Example Check that the waveform meets the STS 3 eye diagram mask It may be necessary to adjust the V div gain on the Oscilloscope OTHER TRANSMIT ...

Страница 323: ... Transmitter Output Waveshape Option 120 Figure 3 63 STS 3 Eye Diagram Pattern Figure 3 64 STS 3 Eye Diagram Mask NOTE If the mask is not available then Figure 3 64 may be traced copied and compared with the Oscilloscope print out ...

Страница 324: ... free operation Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH or SONET and RECEIVER INPUT SDH or SONET 3 Connect up the equipment as shown in Figure 3 65 Receiver Monitor Mode Selectable 20 dB and 26 dB of flat gain 12 dB equalization at 1 2 Bit Rate 3 dB Attenuator N type HP 8491A Option 003 6 dB Attenuator N type 2 off HP 849...

Страница 325: ...r led above the key is lit 5 Press and select GAIN 20 dB 6 Verify that all the front panel ALARM leds are off 7 Press and and check that the display indicates NO TROUBLE 8 Press to halt the measurement 9 Connect the second 6 dB Fixed Attenuator between the 3 dB attenuator and the Cable Attenuator SIGNAL IN RECEIVE RESULTS TROUBLE SCAN RUN STOP RUN STOP ...

Страница 326: ...on Equipment Required Procedure 1 Recall the HP 37717C DEFAULT SETTINGS as shown on 3 2 2 Select TRANSMITTER OUTPUT SDH or SONET and RECEIVER INPUT SDH or SONET 3 Connect the OUT port to the IN port via the Cable Attenuator 4 Verify that all the front panel Alarm leds are off 5 Press and check that the display indicates NO TROUBLE 6 Press to halt the measurement 7 Disconnect all the test equipment...

Страница 327: ...ding and ensure that the frequency counter reading is between 34367845 3 Hz and 34368154 7 Hz 3 Set the FREQUENCY OFFSET to USER OFFSET 20PPM 4 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counter reading is between 34368532 7 Hz and 34368842 0 Hz 5 Set the FREQUENCY OFFSET to USER OFFSET 20PPM 6 Adjust the Frequency Counter ATTEN an...

Страница 328: ...cy counter reading is between 2047888 4 Hz and 2047906 8 Hz DS1 Frequency Accuracy 1 Set the transmitter to Signal DS1 1 5Mb s 2 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counter reading is between 1543992 7 Hz and 1544007 3 Hz 3 Set the FREQUENCY OFFSET to 32PPM 4 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a s...

Страница 329: ...z 4 Select the HP 37717C TRANSMIT page and set FREQUENCY OFFSET to 20PPM 5 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counter reading is between 44736693 4 Hz and 44737096 0 Hz 6 Set the FREQUENCY OFFSET to 20PPM 7 Adjust the Frequency Counter ATTEN and Trigger Level to obtain a stable reading and ensure that the frequency counter ...

Страница 330: ...illoscope and the waveshape compared with the predefined masks stored in the oscilloscope memory The signal levels are also measured using the oscilloscope Rate Frequency Level Waveshape DSX 1 1 544Mb s 3 0V 20 Fits mask T1 102 1993 DS1 LO 1 544Mb s As DSX 1 with 655 ABAM Cable DS3 HI 44 736Mb s 0 9V pk nominal DSX 3 44 736Mb s 560mV pk nomi nal Fits mask T1 102 1993 DS3 900 44 736Mb s 330mV pk no...

Страница 331: ...scope and select PROBE 2 45 attenuation level to compensate for the 75 50 ohm converter 6 If using the HP 54503A oscilloscope use the following key sequence to select and store the correct Telecom Mask a DEFINE MEAS key b COMPARE softkey c TEST ON softkey d WFORM SAVE key e MASK CCITT G703 34Mb softkey f STORE to M1 M2 softkey g STORE softkey 7 Press the SHIFT key on the oscilloscope colored blue ...

Страница 332: ...the delay manually until the negative pulse is centred on the oscilloscope display 4 If using the HP 54503A oscilloscope use the following key sequence to select and store the correct Telecom Mask a WFORM SAVE key b MASK CCITT G703 34Mb softkey c STORE to M1 M2 e STORE INVERSE 5 Compare the isolated negative pulse from the HP 37717C with the limits in the selected Telecom Mask 6 Ensure the wavefor...

Страница 333: ...ollowing key sequence to select and store the correct Telecom Mask a DEFINE MEAS key b COMPARE softkey c TEST ON softkey d WFORM SAVE key e MASK CCITT G703 DS1E 2 0 Mb softkey f STORE to M1 M2 softkey g STORE softkey 8 Press the SHIFT key on the oscilloscope colored blue then MASK AUTO key then 1 key The oscilloscope will now automatically display and compare the isolated positive pulse from the H...

Страница 334: ... softkey c STORE to M1 M2 e STORE INVERSE 5 Compare the isolated negative pulse from the HP 37717C with the limits in the selected Telecom Mask 6 Ensure the waveform fits the mask NOTE It may be necessary to visibly check the waveform fits the mask and manually adjust amplitude and offset parameters on the oscilloscope to obtain a PASS on the Mask 7 Measure the peak pulse amplitude at the mid puls...

Страница 335: ...isplay and compare the isolated positive pulse from the HP 37717C with the limits in the selected Telecom Mask NOTE It may be necessary to visibly check the waveform fits the mask and manually adjust amplitude and offset parameters on the oscilloscope to obtain a PASS on the Mask DSX 3 Negative Pulse 1 Select CHAN on the oscilloscope and set OFFSET to 270 mV 2 Select TRIG on the oscilloscope and s...

Страница 336: ...nced Output to the Oscilloscope via the HP 15508B Balanced to unbalanced Converter and HP 11852B 75 50 ohm converter 4 Select CHAN on the oscilloscope and set to 50 ohms input impedance DC coupled 5 Select CHANNEL 1 on the oscilloscope and select PROBE 2 45 attenuation level to compensate for the 75 50 ohm converter 6 If using the HP 54503A oscilloscope use the following key sequence to select and...

Страница 337: ...e oscilloscope and set to PATTERN H X X X 3 Select TIMEBASE on the Oscilloscope and set DELAY to 300 nS Adjust the delay manually until the negative pulse is centred on the oscilloscope display 4 If using the HP 54503A oscilloscope use the following key sequence to select and store the correct Telecom Mask a WFORM SAVE key b MASK DS1 new 1 5 Mb ANSI T1 102 softkey c STORE to M1 M2 e STORE INVERSE ...

Страница 338: ...rrors in the results page 34 368 Mb s Equalization 1 Recall the HP 37717C Default Settings as shown on 3 2 2 Select the HP 37717C TRANSMIT page and set as follows 3 Connect Cable Simulator 3 see Recommended Test Equipment list in Chapter1 between the HP 37717C Transmitter Output and Receiver Input ports Bit Rate Cable Loss Accommodation 2 048Mb s Up to 6dB for root f cable half bit rate 34 368Mb s...

Страница 339: ...ss OTHER key then SETTINGS CONTROL softkey then set the TRANSMITTER and RECEIVER to COUPLED 2 Select the HP 37717C TRANSMIT page and set as follows 3 Connect Cable Simulator 1 see Recommended Test Equipment in Chapter 1 on Page 67 between the HP 37717C Transmitter Output and Receiver Input ports 4 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurement 5 Ensure that NO TROUBLE is dis...

Страница 340: ...anced Transmitter Output and Receiver Input ports NOTE If Cable Simulator 6 is not available it is permissible to select DS3 900 on the Transmitter Page and connect the HP 37717C 110 Unbalanced Transmitter Output port direct to the Receiver Input port This setup assumes the DS3 900 output signal is within specification 4 Press RESULTS TROUBLE SCAN then RUN STOP key to start the measurement 5 Ensur...

Страница 341: ...iver Balanced Input ports via two Balanced to Unbalanced Converters HP 15508B NOTE If Cable Simulator 5 is not available it is permissible to select DS1 LO on the Transmitter Page and connect the HP 37717C 110 Unbalanced Transmitter Output port direct to the Receiver Input port This setup assumes the DS1 LO output signal is within specification 4 Press RESULTS TROUBLE SCAN then RUN STOP key to sta...

Страница 342: ...nserting a number of 50Ω fixed attenuators in series with a 75 50Ω Matching Pad at one end and a 50 75Ω Matching Pad at the other end The loss of the two Matching Pads is included in the overall attenuation equation The Cable Loss is supplied by inserting the correct Cable Simulators for each bit rate in the attenuation path Equipment Required Bit Rate Nominal Loss Equalization at 1 2 Bit Rate 2 0...

Страница 343: ...SETTINGS as shown on 3 2 2 Connect the equipment as shown in Figure 3 66 Figure 3 66 Option 110 Receiver Monitor Input Fixed Attenuator Qty 2 HP 8491A Option 006 6dB 50Ω Fixed Attenuator Qty 2 HP 8491A Option 003 3dB 50Ω Matching Pad 75 50Ω 7 6dB loss HP 11852B Matching Pad 50 75Ω 4 2dB loss HP 11852B Table3 10 ...

Страница 344: ... 10 Press Press to start the measurement 11 Ensure that NO TROUBLE is displayed on the display after 30 seconds Press to stop the measurement 12 Connect the second 6dB Fixed Attenuator in the signal path to give a total path attenuation of 26 8dB 7 6 3 6 6 4 2 13 Press and set MONITOR LEVEL 26dB 14 Press Press to start the measurement 15 Ensure that NO TROUBLE is displayed on the display after 30 ...

Страница 345: ...26 Press Press to start the measurement 27 Ensure that NO TROUBLE is displayed on the display after 30 seconds Press to stop the measurement 1 544 Mb s DS 1 28 Repeat steps 1 to 26 20dB 26dB and 30dB tests with the HP 37717C and displays set to SIGNAL DSX 1 and Cable Simulator 5 fitted in place of Cable Simulator 1 34 368 Mb s 29 Repeat steps 1 to 18 20dB and 26dB tests with the HP 37717C and disp...

Страница 346: ... Tests Pass Fail PDH Internal Transmitter Clocks 3 7 Step 5 704 kb s UKK only 351 99753 kHz 352 00246 kHz Step 6 2 Mb s 1 0239928 MHz 1 0240072 MHz Step 7 8 Mb s 4 2239704 MHz 4 2240296 MHz Step 8 34 Mb s 17 1838797 MHz 17 1841203 MHz Step 9 140 Mb s 69 6315126 MHz 69 6324874 MHz Frequency Offset Bit Rates 140 Mb s 3 8 Step 11 15 ppm 69 63255705 MHz 69 63353191 MHz Step 12 15 ppm 69 63064218 MHz 6...

Страница 347: ...04 kb s UKK only 50 ppm 352 0151 kHz 352 0201 kHz 50 ppm 351 9799 kHz 351 9849 kHz PDH Transmitter Output Unbal 704 kb s UKK only 3 11 Step 6 ve Pulse Amp 2 133 V pk 2 607 V pk ve Pulse Width 639 ns 781 ns Overshoot 0 474 V Undershoot 0 474 V 3 11 Step 7 ve Pulse Amp 2 133 V pk 2 607 V pk ve Pulse Width 639 ns 781 ns 3 11 Step 7 Overshoot 0 474 V Undershoot 0 474 V Bal 704 kb s UKK only 3 12 Step ...

Страница 348: ...21 ve Pulse Amp 2 133 V pk 2 607 V pk 3 14 Step 22 Pulse Amplitude Ratio 0 95 1 05 Step 23 Pulse Width Ratio 0 95 1 05 Bal 2 Mb s 3 14 Step 26 ve Pulse Amp 2 133 V pk 2 607 V pk ve Pulse Mask Pass Fail ve Pulse Amp 2 133 V pk 2 607 V pk Step 26 ve Pulse Mask Pass Fail Pulse Amplitude Ratio 0 95 1 05 Pulse Width Ratio 0 95 1 05 Unbal 8 Mb s Step 30 ve Pulse Amp 2 133 V pk 2 607 V pk ve Pulse Mask P...

Страница 349: ...5 1 05 Unbal 140 Mb s All Ones 3 19 Step 39 ve Pulse Amp 0 900 V pk 1 100 V pk Step 40 ve Pulse Mask Pass Fail Unbal 140 Mb s All Zeros 3 20 Step 44 ve Pulse Amp 0 900 V pk 1 100 V pk Step 45 ve Pulse Mask Pass Fail PDH Multiple TX Outputs 704 kb s Out 2 UKK only 3 24 Step 6 ve Pulse Amp 2 133 V pk 2 607 V pk ve Pulse Width 639 ns 781 ns Overshoot 0 474 V Undershoot 0 474 V 704 kb s Out 3 UKK only...

Страница 350: ... V pk ve Pulse Width 639 ns 781 ns Step 8 Overshoot 0 474 V Undershoot 0 474 V 704 kb s Out 3 UKK only Step 9 ve Pulse Amp 2 133 V pk 2 607 V pk ve Pulse Width 639 ns 781 ns Overshoot 0 474 V Undershoot 0 474 V 704 kb s Out 2 UKK only ve Pulse Amp 2 133 V pk 2 607 V pk ve Pulse Width 639 ns 781 ns Overshoot 0 474 V Undershoot 0 474 V Step 12 Delay 1 to 2 4 bits 3 25 Step 14 Delay 1 to 3 8 bits Tab...

Страница 351: ...l Step 27 ve Pulse Mask Pass Fail Step 28 ve Pulse Amp 2 133 V pk 2 607 V pk 2 Mb s Out 3 Step 29 ve Pulse Mask Pass Fail ve Pulse Amp 2 133 V pk 2 607 V pk 2 Mb s Out 2 ve Pulse Mask Pass Fail ve Pulse Amp 2 133 V pk 2 607 V pk 3 27 Step 32 Delay 1 to 2 4 bits Step 34 Delay 1 to 3 8 bits Step 36 Delay 1 to 4 12 bits Step 37 Pulse Amplitude Ratio 0 95 1 05 Step 38 Pulse Width Ratio 0 95 1 05 8 Mb ...

Страница 352: ... ve Pulse Mask Pass Fail ve Pulse Amp 2 133 V pk 2 607 V pk 8 Mb s Out 2 ve Pulse Mask Pass Fail ve Pulse Amp 2 133 V pk 2 607 V pk Step 54 Delay 1 to 2 4 bits Step 56 Delay 1 to 3 8 bits Step 58 Delay 1 to 4 12 bits Step 59 Pulse Amplitude Ratio 0 95 1 05 Step 60 Pulse Width Ratio 0 95 1 05 34 Mb s Out 2 Step 65 ve Pulse Amp 0 900 V pk 1 100 V pk 3 30 Step 67 ve Pulse Mask Pass Fail 34 Mb s Out 3...

Страница 353: ... 100 V pk Step 76 Delay 1 to 2 4 bits Step 78 Delay 1 to 3 8 bits Step 80 Delay 1 to 4 12 bits Step 81 Pulse Amplitude Ratio 0 95 1 05 Step 82 Pulse Width Ratio 0 95 1 05 140 Mb s Out 2 3 32 Step 88 Pulse Amp 0 900 V pk 1 100 V pk Step 89 All 1 s Pulse Mask Pass Fail 140 Mb s Out 3 Step 90 Pulse Amp 0 900 V pk 1 100 V pk All 1 s Pulse Mask Pass Fail 140 Mb s Out 4 Step 90 Pulse Amp 0 900 V pk 1 10...

Страница 354: ...o 4 0 bits PDH Frame Analysis 2 Mb s 3 37 Step 4 Alarms Off Pass Fail 3 37 Step 6 Multiframe Loss Pass Fail 3 38 Step 7 Alarms Off Pass Fail Step 13 CRC Errors Pass Fail Step 14 Alarms On Pass Fail Step 15 Alarms Off Pass Fail Step 17 Error Count Pass Fail Step 18 Remote Alarm Pass Fail Step 20 Remote M frame Alarm Pass Fail 8 Mb s 3 39 Step 3 Alarms Off Pass Fail Step 5 Remote Alarm Pass Fail Ste...

Страница 355: ... 10 Remote Alarm Pass Fail Step 13 Frame Loss Pass Fail Step 14 Alarms Off Pass Fail Step 16 AIS Frame Loss Pass Fail Step 17 Alarms Off Pass Fail 140 Mb s 3 41 Step 4 Alarms Off Pass Fail 3 42 Step 6 Remote Alarm Pass Fail Step 7 Frame Errors Pass Fail Step 8 Alarms Off Pass Fail Step 10 Remote Alarm Pass Fail Step 13 Frame Loss Pass Fail Step 14 Alarms Off Pass Fail Step 16 AIS Frame Loss Pass F...

Страница 356: ...s Fail Step 16 34 Mb s 26 dB Pass Fail Step 19 140 Mb s 26 dB Pass Fail SPDH Receiver Monitor Levels UKJ only 3 52 Step 7 Trouble Scan Pass Fail Step 11 Trouble Scan Pass Fail 3 53 Step 15 Trouble Scan Pass Fail Step 19 Trouble Scan Pass Fail Step 23 Trouble Scan Pass Fail Step 27 Trouble Scan Pass Fail Step 28 Trouble Scan 20 dB Pass Fail Trouble Scan 20 dB Equalized Pass Fail Trouble Scan 26 dB ...

Страница 357: ...le Scan 20 dB Equalized Pass Fail Trouble Scan 26 dB Equalized Pass Fail Trouble Scan 26 dB Pass Fail Trouble Scan 30 dB Pass Fail Trouble Scan 30 dB Equalized Pass Fail External 2 Mb s Mux Demux UKJ only 3 58 Step 10 Bit Code EC Pass Fail Step 11 Bit Error Add Pass Fail 3 59 Step 14 ve Pulse Amp 2 133 V pk 2 607 V pk Step 16 ve Pulse Mask Pass Fail 3 60 Step 20 ve Pulse Mask Pass Fail Step 21 ve ...

Страница 358: ...p 21 Pulse Amplitude Ratio 0 95 1 05 Step 22 Pulse Width Ratio 0 95 1 05 PDH RX Mon Levels Special Option 808 3 69 Step 7 704 kb s 26 dB Pass Fail 3 70 Step 10 2 Mb s 26 dB Pass Fail Step 13 8 Mb s 26 dB Pass Fail Step 16 34 Mb s 29 dB Pass Fail Step 19 140 Mb s 26 dB Pass Fail PDH Error Output 3 72 Step 7 Bit EC Pass Fail Step 8 Bit ER Pass Fail Step 10 Pulse Period Pass Fail Step 11 No Pulses Pa...

Страница 359: ...107 ppm Frequency Counter Pass Fail Step 14 704 kb s 0 ppm UKK only 7 ppm 7 ppm 704 kb s 100 ppm UKK only 93 ppm 107 ppm 704 kb s 100 ppm UKK only 93 ppm 107 ppm Offset 8 Mb s 0 ppm 7 ppm 7 ppm Offset 8 Mb s 100 ppm 93 ppm 107 ppm Offset 8 Mb s 100 ppm 93 ppm 107 ppm Offset 34 Mb s 0 ppm 7 ppm 7 ppm Offset 34 Mb s 100 ppm 93 ppm 107 ppm Offset 34 Mb s 100 ppm 93 ppm 107 ppm Offset 140 Mb s 0 ppm 7...

Страница 360: ... Clock 3 83 Step 7 Trouble Scan Pass Fail Step 13 Trouble Scan Pass Fail Step 19 Trouble Scan Pass Fail 3 84 Step 21 Clock Loss Pass Fail Step 25 No Clock Loss Pass Fail STM 1 Transmitter Output Waveshape 3 86 Step 6 ALL ONES Mask Pass Fail 3 88 Step 10 ALL ZEROS Mask Pass Fail 3 89 Step 13 Eye Diagram Mask Pass Fail STM 1 Receiver Monitor Input 3 92 Step 5 Alarms Off Pass Fail Step 6 Trouble Scan...

Страница 361: ...ive Led Off Pass Fail Step 19 Trouble Scan Pass Fail Step 21 Laser Active Led Off Pass Fail STM 1 STM 4 Optical Interface Option UH2 3 103 Step 6 Laser Active Led On Pass Fail Step 7 Optical Power STM 1 15 dBm 8 dBm Step 9 Optical Power STM 4 15 dBm 8 dBm Step 11 Laser Active Led Off Pass Fail Step 16 Laser Active Led Off Pass Fail Step 21 Trouble Scan Pass Fail Step 23 Laser Active Led Off Pass F...

Страница 362: ...4 Optical Interface Option UKT USN 3 111 Step 6 Laser Active Led ON Pass Fail Step 7 Optical Power STM 1 15 dBm 8 dBm Step 10 Optical Power STM 4 15 dBm 8 dBm Step 11 Laser Active Led Off Pass Fail 3 112 Step 21 Trouble Scan STM 1 Pass Fail Step 22 Trouble Scan STM 4 Pass Fail 3 113 Step 33 Trouble Scan STM 4 Monitor Pass Fail Step 36 Trouble Scan STM 1 Monitor Pass Fail 3 114 Step 49 Trouble Scan...

Страница 363: ...ep 24 Trouble Scan STM 4 Pass Fail Step 25 Trouble Scan STM 4 Pass Fail 3 121 Step 36 Trouble Scan STM 4 Monitor Pass Fail Step 39 Trouble Scan STM 1 Monitor Pass Fail Step 40 Trouble Scan STM 0 Monitor Pass Fail 3 122 Step 53 Trouble Scan Pass Fail 3 123 Step 64 Trouble Scan STM 4 Pass Fail Step 65 Trouble Scan STM 1 Pass Fail Step 66 Trouble Scan STM 0 Pass Fail 3 124 Step 78 Trouble Scan STM 4 ...

Страница 364: ...UI 1 5 UI 2 0 UI 4 8 UI 4 4 UI 5 1 UI 8 8 UI 8 2 UI 9 3 UI 8 Mb s Range 10 1 8 UI 1 5 UI 2 0 UI 5 8 UI 5 3 UI 6 2 UI 8 8 UI 8 2 UI 9 3 UI 3 130 Step 13 34 Mb s Range 10 2 8 UI 2 5 UI 3 0 UI 6 8 UI 6 2 UI 7 3 UI 8 8 UI 8 2 UI 9 3 UI 140 Mb s Range 10 3 8 UI 3 3 UI 4 2 UI 7 8 UI 7 1 UI 8 4 UI 8 8 UI 8 1 UI 9 4 UI TX Jitter Wander Amplitude Accuracy Option A3K Range 1 Table 11 Performance Test Record...

Страница 365: ...I 9 3 UI 3 140 Step 13 34 Mb s Range 10 2 8 UI 2 5 UI 3 0 UI 6 8 UI 6 2 UI 7 3 UI 8 8 UI 8 2 UI 9 3 UI 140 Mb s Range 10 3 8 UI 3 3 UI 4 2 UI 7 8 UI 7 1 UI 8 4 UI 8 8 UI 8 1 UI 9 4 UI 3 142 Step 6 SDH Range 1 0 69 UI 0 81 UI Step 8 SDH Range 10 1 7 UI 1 8 UI 3 146 Step 6 SDH Range 50 58 09kHz 65 99 kHz 3 144 Step 5 PDH Range 80I 5 76 kHz 6 72 kHz 3 146 Step 7 External Jitter 1 76 V pk_pkI 2 84 V p...

Страница 366: ... REF Pass Fail 3 157 Step 19 Bit Slips 955 964 Frame Slips 3 4 Step 20 ve Peak Pass Fail ve Peak 955 125 964 875 Step 20 Peak Peak 955 125 964 875 Time Interval Error 955 125 964 875 Step 24 Bit Slips 955 964 Frame Slips 3 4 3 158 Step 25 ve Peak 955 125 964 875 ve Peak Pass Fail Peak Peak 955 125 964 875 Time Interval Error 955 125 964 875 Jitter Receiver STM 1E Input Equalization 3 159 Step 4 Al...

Страница 367: ...Fail 3 167 Step 14 Trouble Scan Pass Fail Step 17 Trouble Scan Pass Fail Binary Interfaces 3 171 Step 8 Alarms Off Pass Fail Step 11 Alarms Off Pass Fail 3 172 Step 14 Alarms Off Pass Fail Step 17 Alarms Off Pass Fail Unstructured PDH 3 173 Step 6 Mark Space Ratio Pass Fail 3 174 Step 10 Mark Space Ratio Pass Fail Structured PDH 3 175 Step 6 Mark Space Ratio Pass Fail Step 7 Mark Space Ratio Pass ...

Страница 368: ...cy Step 2 Frequency 34367759 4 Hz 34368240 6 Hz Step 4 Frequency 34368446 8 Hz 34368928 Hz Step 6 Frequency 34367072 0 Hz 34367553 2 Hz DS1 Frequency Accuracy 3 178 Step 2 Frequency 1543993 Hz 1544007 Hz Step 4 Frequency 1544042 4 Hz 1544056 4 Hz Step 6 Frequency 1543943 6 Hz 1543957 6 Hz Transmitter Output Level and Waveshape Option UKZ 34 368 Mb s Positive Pulse 3 181 Step 8 Pulse Mask Pass Fail...

Страница 369: ...e Mask Pass Fail Step 9 peak pulse amplitude 1 984V 2 976V DSX 1 Negative Pulse 3 189 Step 7 Pulse Mask Pass Fail Step 8 peak pulse amplitude 1 984V 2 976V ETSI ANSI Receiver Equalization Option UKZ 2 048Mb s Equalization 3 191 Step 6 Trouble Scan Pass Fail 34 368 Mb s Equalization Step 4 Trouble Scan Pass Fail DS3 Equalization 3 192 Step 5 Trouble Scan Pass Fail DS1 Equalization 3 193 Step 6 Trou...

Страница 370: ...Step 6 Trouble Scan Pass Fail DS3 26dB Monitor 3 199 Step 11 Trouble Scan Pass Fail DS1 20dB Monitor Step 6 Trouble Scan Pass Fail DS1 26dB Monitor 3 200 Step 11 Trouble Scan Pass Fail DS1 30dB Monitor Step 16 Trouble Scan Pass Fail Trigger Output Option UKZ 3 202 Step 8 TTL output Level Pass Fail Internal SONET Transmitter Clock Option 120 3 205 Step 5 Frequency 77 759650 MHz 77 760350 MHz SONET ...

Страница 371: ...16 Step 6 Alarms Off Pass Fail Step 7 Trouble Scan Pass Fail STS 3 Receiver Input Equalization Option 120 3 217 Step 4 Alarms Off Pass Fail Step 5 Trouble Scan Pass Fail ETSI ANSI Internal Transmitter Clock Rates Option 110 DS3 Frequency Accuracy 3 220 Step 5 Frequency 44735798 7 Hz 44736201 3 Hz Step 6 Frequency 44736693 4 Hz 44737096 0 Hz 3 220 Step 7 Frequency 44734904 0 Hz 44735306 6 Hz E1 2 0...

Страница 372: ... Frequency 1543943 3 Hz 1543957 8 Hz Transmitter Output Level and Waveshape Option 110 34 368 Mb s Positive Pulse 3 222 Step 7 Pulse Mask Pass Fail 3 223 Step 8 peak pulse amplitude 900 mV 1 100 Volts 34 368 Mb s Negative Pulse Step 6 Pulse Mask Pass Fail Step 7 peak pulse amplitude 900 mV 1 100 Volts 2 048 Mb s Positive Pulse 3 224 Step 8 Pulse Mask Pass Fail Step 9 peak pulse amplitude 2 133V 2 ...

Страница 373: ... s Equalization 3 230 Step 6 Trouble Scan Pass Fail 34 368 Mb s Equalization Step 5 Trouble Scan Pass Fail DS3 Equalization 3 231 Step 5 Trouble Scan Pass Fail DS1 Equalization 3 232 Step 5 Trouble Scan Pass Fail ETSI ANSI Receiver Monitor Levels Option 110 2 048Mb s 20dB Monitor 3 235 Step 6 Trouble Scan Pass Fail Step 11 Trouble Scan Pass Fail 2 048Mb s 26dB Monitor Step 15 Trouble Scan Pass Fai...

Страница 374: ...rouble Scan Pass Fail DS3 20dB Monitor Step 11 Trouble Scan Pass Fail DS3 26dB Monitor Step 15 Trouble Scan Pass Fail DS1 20dB Monitor Step 6 Trouble Scan Pass Fail DS1 26dB Monitor Step 15 Trouble Scan Pass Fail DS1 30dB Monitor 3 236 Step 23 Trouble Scan Pass Fail Table 11 Performance Test Record Page No Test Description Result Min Actual Max ...

Страница 375: ...3 266 Performance Tests Performance Test Record ...

Страница 376: ... in the following table ETSI Term ANSI Term I n Intra Office STM n Intermediate Reach IR L n 1 or L n 2 long haul LR long reach Multiplexer Section MS Line MS AIS AIS L Line AIS MS BIP Line BIP MS DCC Line DCC MS RDI MS FERF RDI L Line FERF Multiplexer Section Overhead Line Overhead Network Node Interface Line Interface AU AIS Path AIS AIS P HP RDI Path FERF RDI P Regenerator Repeater Regenerator ...

Страница 377: ... when converting between standards S n 1 or S n 2 short haul Short Reach SR STM n STS n SOH TOH Section Overhead SOH Transport Overhead TOH Tributary Unit TU Virtual Tributary VT TU VT TU AIS VT AIS AIS V TU FERF TU RDI RDI V VT FERF TU REI VT FEBE VC SPE Virtual Container Payload Envelope Virtual Container VC Synchronous Payload Envelope SPE VP RDI VP FERF VP RDI VC RDI VC FERF VC RDI ETSI Term A...

Страница 378: ...nt Terminology Previous Terminology B1 BIP RS B1 BIP B2 BIP MS B2 BIP B3 BIP Path B3 BIP MS AIS MS AIS MS RDI MS RDI MS REI MS FEBE HP IEC Path IEC AU LOP LOP AU AIS Path AIS HP RDI Path FERF HP REI Path FEBE TU LOP TU LOP TU AIS TU Path AIS LP RDI TU Path FERF LP REI TU Path FEBE ...

Страница 379: ...4 4 Installation Current Previous Terminology ...

Страница 380: ... 37717C to a known state The known state is the FACTORY DEFAULT SETTINGS as listed below display UPDH Option UKK Signal 140 Mb s Clock Sync Internal Code CMI Pattern 223 1 Termination 75Ω Unbal display SPDH Option UKJ Settings Main Signal 140 Mb s Clock Sync Internal Termination 75Ω Unbal Line Code CMI Frequency Offset Off Payload Type Unframed Pattern 223 1 PRBS Polarity INV Test Signal 34 Mb s 3...

Страница 381: ...Internal Code HDB3 Termination 75Ω Unbal Cell Stream Distribution F G Bandwidth 80 000 c s B G 1 Bandwidth 0 B G 2 Bandwidth 0 B G 3 Bandwidth 0 F G Distribution Burst Burst Size 1 Cell Interface UNI F G Payload Cross Cell 215 1 B G Stream 1 B G Payload 00000001 Fill Cells Idle display UPDH Option UKK Signal 140 Mb s Test Mode Out of Service Code CMI Pattern 2 23 1 Termination 75Ω Unbal TRANSMIT T...

Страница 382: ...M Payload Unframed 34 Mb 1 8 Mb 1 2 Mb 1 64 kb 1 display SDH Signal STM 1 Payload 140 Mb s Payload Pattern 2 23 1 TUG3 1 TUG2 1 TU 1 display ATM Option UKN Signal 34 Mb s Termination 75Ω Unbal Code HDB3 Interface UNI Test Cell All User Cell Payload Cross Cell 215 1 display Results Trouble Scan Short Term Period 1 Second Test Timing Manual Single Test Duration 1 Hour Storage OFF SDH Results Short T...

Страница 383: ...Test on LOS OFF Self Test All Tests Settings Control Independent Status Registers Register ve Transition ve Transition Enable ESR All 1s All 0s All 1s QUES All 1s All 0s All 0s OPER All 1s All 0s All 0s INST All 1s All 0s All 1s DATA All 1s All 0s All 1s PDH All 1s All 0s All 1s FAS All 1s All 0s All 1s SDH All 1s All 0s All 1s SDH2 All 1s All 0s All 1s SPDH All 1s All 0s All 1s M140 All 1s All 0s...

Страница 384: ...re below when fitting calibrating and testing Some modules also need to be calibrated after fitting see Table B 1 Calibration procedures for these modules are included here Table B 1 Additional Modules Required for Performance Tests Module Under Test Option Under Test Module s Required Part Number Calibration Required Unstrucured PDH Tx Rx UKK USB special 808 None No Structured PDH Tx UKJ USA SPDH...

Страница 385: ...1 Electrical Jitter Receiver A1M A1Q A3L A3M Jitter Tx PDH Tx Rx SDH Tx Rx 37717 60010 37714 60044 37714 60048 Jitter Tx STM 1 Optical Jitter Rx A1N A1R A3V A3W Jitter Tx PDH Tx Rx SDH Tx RxS TM 1 Optic Tx 37717 60010 37714 60044 37714 60048 37714 60011 Jitter Tx STM 1 4 Optical Jitter Receiver A1P A1S A3N A3P Jitter Tx PDH Tx Rx SDH Tx Rx STM1 4 Optic Tx 37717 60010 37714 60044 37714 60048 37714 ...

Страница 386: ... 1 SDH Binary I face 0YH Attached to UKT or USN or 130 or 131 in slot 2 SDH US1 US5 A1T A1U A3R A3S Immediately to right of SDH Binary If SDH Binary not fitted immediately to right of Optics Unstructured Structured PDH Tx and Rx Modules UKK USB UKJ USA Tx Module is always on the left side To right of Jitter TX PDH Multiple O P s or SDH Multiple Outlets UHC US6 Immediately to the right of SDH PDH B...

Страница 387: ...nect the power cord 2 Remove the rear panel feet Jitter Tx UHK A3K A3Q 140 141 If Mult O P fitted immediately to the right of this If Mult O P not fitted immediately to the right of SDH If SDH and Mult O P not fitted immediately to right of Optics Jitter Rx UHN US9 A1M A1Q A1N A1R A1P A1S A3L A3M A3V A3W A3N A3P If Binary Interfaces UH3 fitted Immediately to the right of it If UH3 not fitted immed...

Страница 388: ...7 Fit all existing modules plus the new module s and blanking plates back into the instrument in the order shown in Figure B 1 and Table B 2 8 Secure each module with the two clamp screws 9 Replace the Optical Shields if optical module fitted then fit the Outer Cabinet Sleeve and Rear Panel feet as a reversal of the removal procedure Testing 1 Power on the instrument and check for a sensible displ...

Страница 389: ... display the transmitted data spectrum a Bessel Null should be observed The HP 37717C DAC output is adjusted using the calibration routine to optimise this Bessell Null This sets the transmitted jitter to exactly 0 765UI This process is repeated for all other Calibration points in the routine Equipment Pre Adjustment Setup Before carrying out Jitter Transmitter Calibration you will need to perform...

Страница 390: ...MODULE JITTER MODULE on the Module Debug Display 8 Select TX CALIBRATION ON 9 Select RX CALIBRATION OFF CAUTION The previous pre adjustment sequence will need to be performed again if power is cycled during Jitter Calibration as MODULE DEBUG parameters return to default values when instrument power is cycled Jitter Transmitter Calibration Procedure 1 Connect the HP 37717C Transmitter Output to the...

Страница 391: ...e Least Significant Bit until the carrier level displayed on the Spectrum Analyzer is at a minimum Bessel Null 8 When the Bessel Null is obtained move the cursor to TOGGLE WHEN AT ZERO POINT and press ZERO POINT softkey This stores the value for the modulation frequency and the routine automatically moves on to the next calibration value 9 Repeat steps 7 and 8 for each new calibration value At eac...

Страница 392: ...B 9 Appendix B Fitting Calibrating Testing New Modules Typical Jitter Transmit Spectrum ...

Страница 393: ...B 10 Appendix B Fitting Calibrating Testing New Modules ...

Страница 394: ...Mb s Mux Demux 55 External MTS Clock 82 208 F Fitting Calibrating and Testing New Mod ules B 1 Fuse Replacement 2 3 Fuses 2 3 H HANDSET Connector 2 15 Hewlett Packard Interface Bus 2 16 HP IB 2 16 Address Selection 2 17 Connections 2 17 HP IB Address 2 17 HP IB Connection 2 16 I Inspection Initial 2 1 Instruments Covered By Manual 1 4 Internal SDH Transmitter Clock 77 78 204 205 J Jitter Receiver ...

Страница 395: ...DH Receiver Monitor Levels 50 54 233 236 Statement of Compliance 1 10 STM 1 STM 4 IN Connector 2 9 STM 1 IN Connector 2 7 STM 1 Optical Interface 98 100 164 STM 1 OUT Connector 2 7 STM 1 Receiver Input Equalization 97 217 STM 1 Receiver Monitor Input 91 96 216 STM 1 Transmitter Output Waveshape 85 90 209 214 STM 1 STM 4 Optical Interface 101 103 109 116 167 STM 1 STM 4 Optical Interface Options UK...

Страница 396: ...Tel 86 10 6505 0149 Singapore Tel 1800 292 8100 Taiwan Tel 886 3 492 9666 Thailand Tel 66 2 661 3900 For countries in Asia Pacific not listed contact Hewlett Packard Asia Pacific Ltd 17 21 F Shell Tower Times Square 1 Matheson Street Causeway Bay Hong Kong Tel 852 2599 7777 Fax 852 2506 9285 Australia New Zealand Hewlett Packard Australia Ltd 31 41 Joseph Street Blackburn Victoria 3130 Australia T...

Страница 397: ...Spain Tel 34 1 631 1323 Sweden Tel 08 444 22 77 Switzerland Tel 01 735 7111 Turkey Tel 90 212 2245925 United Kingdom Tel 01344 366 666 For countries in Europe Middle East and Africa not listed contact Hewlett Packard International Sales Europe Geneva Switzerland Tel 41 22 780 4111 Fax 41 22 780 4770 Latin America Hewlett Packard Latin American Region Headquarters 5200 Blue Lagoon Drive 9th Floor M...

Страница 398: ...nts the product as of 11 98 Edition dates are as follows 1st Edition March 98 2nd Edition November 98 Copyright Hewlett Packard Ltd 1998 All rights reserved Reproduction adaption or translation without prior written permission is prohibited except as allowed under the copyright laws ...

Страница 399: ...Printed in U K 11 98 37717 90435 In This Book This book contains the instrument specifications and provides techniques for checking them ...

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