manualshive.com logo in svg

Tektronix ST112, Руководство пользователя

Поделиться
Скачать
Tektronix ST112 Скачать руководство пользователя страница 219

Appendix A: Specifications 

A–2  

ST112 SONET Transmission Test Set

 

 

This addendix documents the specifications that apply to the latest software release for the 

ST112 SONET Transmission Test Set

, Version 4.1. 

 

Table A-1: 

Standard ST112 Electrical Specifications 

Characteristic Description 
Generator Output 

Electrical Output 

 

  Data Rates 

DSX-1:   

1.544 Mb/s 

DSX-3:   

44.736 Mb/s 

STSX-1:  

51.84 Mb/s 

  Data Formats 

DSX-1:   

AMI, B8ZS 

DSX-3:   

B3ZS 

STSX-1: B3ZS 

 Frame 

Formats 

DS1:   UNFRAMED, SF, ESF, SLC96

 

DS3:   UNFRAMED, M13, C-BIT 

  Payload Mappings 

VT1.5 BIT FLOAT (INT/EXT) 
VT1.5 BYTE FLOAT 
DS3 (INT/EXT) 

  Active Channel 

DS3 Mapping:   All STS-1’s are filled with the selected DS3 
pattern. 
VT1.5 Mapping:  Any 1 channel or all channels are filled with a 
selected VT1.5  
 

 

pattern.  If a single channel is selected, then the 

remaining  
 

 

channels are filled with a unique SF 24-bit fixed 

word pattern. 

  Signal Level at Transmit 

Output 
(Output Amplitude) 

DSX-1:   

3.0 ± 0.3 volts peak 

DSX-3:   

0.5 ± 0.2 volts peak 

STSX-1: 0.5 ± 0.2 volts peak 
STS-1:    

ECL 

  Pulse Shape at Transmit 

Output 

DSX-1:   

Meets TR-TSY-000499, Issue 1, December 1987. 

DSX-3:   

Meets TR-TSY-000499, Issue 3, December 1989. 

See Note. 
STSX-1:  

Meets TA-NWT-000253, Issue 8, October 1993. 

See Note. 
 
Note: The six STSX1/DSX-3 outputs are provided through three 2-
way power splitters.  Each pair, taken side-by-side, must be 
terminated in 75 ohm resistive to meet the pulse shapes specified.  
Isolation between each pair exceeds 15 dB.  A slight waveform 
aberration will occur on an opposite output if it’s pair is not 
terminated but will typically pass pulse shape tests. 

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Содержание ST112

Страница 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Страница 2: ...Manual p p p p ST112 SONET Transmission Test Set 070 9398 03 This document supports firmware version 4 4 and above Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 3: ...oftware clause at DFARS 252 227 7013 or subparagraphs c 1 and 2 of the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 as applicable Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix...

Страница 4: ...rranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper user or connection to incompati...

Страница 5: ...pecifications hardware and software by expert application engineers For Applications Support call the Customer Support Center listed below Mailing Address Tektronix Inc Measurement Business Division P O Box 500 Beaverton Oregon 97077 0001 USA Attn Customer Service Customer and Sales Support Center 800 TEK WIDE or 800 835 9433 Ext 2400 Hours are 6 00 AM to 5 00 PM Pacific Time After hours Voice Mai...

Страница 6: ...uration Keys TX 2 7 Receiver Description 2 8 Receiver Connectors Front Panel 2 8 Input Key Receiver 2 8 Configuration Keys RX 2 9 Receiver Status Indicators 2 9 Section Alarms 2 9 Line Alarms 2 10 Path Alarms 2 10 VT Path Alarms 2 11 Pointer Indicators 2 12 Payload DS1 and DS3 Indicators 2 12 View History Key 2 13 Measurement Controls and Indicators 2 14 Remote Indicators 2 14 Rear Panel Descripti...

Страница 7: ...lay 3 19 Optical Output Menu Displays 3 19 Overhead Menus 3 20 Mapping Menus 3 21 Timing 3 22 Pointer 3 22 Alarm Generation Menus 3 23 Error Generation Menus 3 24 DCC Orderwire 3 24 DS VT STS 3c and 12c Menus TX 3 25 Pattern Menus 3 25 Framing Menu 3 27 Payload Error Alarm 3 27 Virtual Front Panel VFP 4 1 Applications Uses Applications 5 2 Passive Monitoring 5 2 Active Analysis 5 3 Circuit Pack Te...

Страница 8: ...mmands 7 20 Transmitter Setup and Mode Commands 7 24 Test Cycle Control Commands 7 27 Payload Commands 7 30 Pointer Commands SPE 7 37 Pointer Commands VT 7 39 Receiver Overhead Query Commands 7 41 Receiver Measurement Commands 7 43 Receiver LED Status Commands 7 48 Transmitter Error Commands 7 54 Alarms TX 7 65 Loss of Signal 7 72 Combined Dual Mode Commands 7 73 Appendices Specifications A 1 Inco...

Страница 9: ...t Avoid Electric Overload To avoid electric shock or fire hazard do not apply a voltage to a terminal that is outside the range specified for that terminal Ground the product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the pr...

Страница 10: ...o high intensity rays Product Damage Precautions Use Proper Power Source Do not operate this product from a power source that applies more than the voltage specified Provide Proper Ventilation To prevent product overheating provide proper ventilation Do not operate with suspected failures If you suspect there is damage to this product have it inspected by qualified service personnel Artisan Techno...

Страница 11: ... the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product DANGER High Voltage Protective Ground Earth Terminal ATTENTION Refer to Manual Double Insulated Certifications and Compliances CSA Certified Power Cords CSA Certificatio...

Страница 12: ...use of terminal display menu structures accessed by using a VT 100 terminal emulator These full screen displays provide more information than individual LCD displays and can be used remotely or with a local terminal Chapter 5 Applications and Use Provides common examples of telecommunication network applications Details how to use the test set for Passive Monitoring Active Analysis and Test Signal...

Страница 13: ... case letter for example TRANSMIT and HELP Names appear in the same case in this manual as they appear on the display of the ST112 for example Test Duration and USER DEFINED Within a procedure a specific button to be pressed or a parameter to be selected appears in boldface print Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 14: ...chapter describes the ST112 SONET Transmission Test Set and provides a list of standard optional and general safety information Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 15: ... front panel design is shown in Figure 1 1 When Ordering the ST112 SONET Transmission Test Set use the following numbers ST112 SONET Transceiver Test Set ORDERING INFORMATION Nomenclature Description ST112 SONET Test Set DS1 DS3 STS1 Opt 03 OC 1 OC 3 and OC 3c 1310 nm FC Connector Opt 04 OC 1 OC 3 OC 3c and OC 12 1310 nm FC Connector Opt 06 LabView Drivers Remote Test Opt 07 Event Sync Output Opt ...

Страница 16: ...EI SNTQAB36AA CPR 674662 ST112 SONET Transmission Test Set Features and Capabilities OC 12c OC 12 OC 3c OC 3 SONET Section Line Path and VT Path Testing B1 B2 and B3 Error Measurement Section Line Path and VT Path Alarm Detection Line Layer Alarm and Error Generation Truly portable 22 pounds 10 kilograms maximum weight A simple menu system Integrates with the ST2400 2 4 Gb s SDH SONET Test Set for...

Страница 17: ...purchase optional accessories contact your local Tektronix Representative Standard Accessories User Manual Certificate of Traceable Calibration Front Cover Power Cord Optional Acccessories Interface Cables RS 232 C GPIB Centronics RS 232 C 012 1379 00 9 pin female to 9 pin male 012 1298 00 9 pin female to 25 pin male 012 1398 00 9 in RS 232 C to plotter printer GPIB 012 0991 00 2m double shielded ...

Страница 18: ...faces of the instrument can become potential shock hazards Use the Proper Fuse Always replace the AC LINE fuse using the procedure and fuse rating specified Use a 5 Amp SLOBLO fuse Operating the instrument with an improper fuse will create a fire hazard Do Not Look into the OPTICAL Output The ST112 SONET Transmission Test Set OPTICAL output is equipped with a high powered laser Never look directly...

Страница 19: ...the hazards involved to work with laser based equipment circuits and networks Never examine or stare into an open or broken optical fiber when it is connected to any laser output device or equipment whether or not that laser is activated Always assume that the laser is on whenever it is not connected to a circuit or covered Always deactivate the laser before connecting or disconnecting optical cab...

Страница 20: ...on Test Set controls indicators connectors and display elements It includes separate sections that detail the transmitter and receiver specifics for the front and rear panels Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 21: ...ay and Display Controls Transmitter Controls Connectors and Status LED Receiver Controls Connectors and Status LEDs Measurement Controls and Indicators GPIB LED Status Indicators W AR N I N G Always avoid exposure to the laser beam Before power is applied to the ST112 SONET Transmission Test Set be sure that all laser outputs are either covered with the screw cap provided or connected to the appro...

Страница 22: ...pproximately 2 inches 5 cm clearance for cooling on the top and rear of the unit The two rear panel fans draw air into the ST112 SONET Transmission Test Set which is exhausted through the top vents 4 Wire the unit for a chosen application Never exceed the maximum optical power limits 10 dBm listed on the front panel Always cover the unused OC connectors CAUTION Signal levels greater than 10 dBm ne...

Страница 23: ...us submenus and test results There are five display controls and one LED indicator The right and left arrows are used to position the LCD cursor The INC increment and DEC decrement keys are used to change values The ENTER key is used to insert the selected value The ENTER key houses an LED indicator that flashes whenever an action is requested or required It will continue to flash until the ENTER ...

Страница 24: ...ed by the black arrow will access the next menu There are nine main menus some of which have submenus All menus are detailed in Chapter 3 LCD Menus and Displays The SETUP menus are arranged in a continuous loop Press any other key to exit the setup mode W AR N I N G Before activating the LASER its output must be connected to a circuit Figure 2 3 Setup Main Menus Artisan Technology Group Quality In...

Страница 25: ...port Signal cross connect Level 1 STSX 1 output or Digital Signal cross connect Level 3 DSX 3 output Two yellow LEDs indicate the selected signal STSX 1 or DSX 3 On the lower right side of the transmitter section in the LASER ON area is an industry standard FC PC optical output connector ST and SC connectors are available as options The optical output key is used to switch between OC 1 OC 3 and OC...

Страница 26: ...n Chapter 3 LCD Menus and Displays In general seven are in the general area and three are in the DS3 VT1 5 STS 3c STS 12c area They are as follows OVHD Overhead MAPPING TIMING ALARM POINTER DCC OW Data Communications Channel Orderwire ERROR PATTERN FRAMING and ERR ALM Error Alarm Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 27: ...right side of the receiver front panel is a 75 ohm input connector either a WECO 560 or a BNC and a 100 ohm input connector either bantam or WECO 310 The STSX 1 or DSX 3 signal can be applied to the 75 ohm input The DSX 1 signal can be applied to the 100 ohm input Input Key Receiver The receiver INPUT select key and four associated yellow LED indicators are on the lower right side of the receiver ...

Страница 28: ...l connections between two regenerators or between a Network Element and the adjacent signal regenerator The Test Set has four section alarm LED indicators as follows The receiver LOS Loss Of Signal alarm indicates an STS n or OC n signal failure in the monitored direction The receiver LOF Loss Of Frame alarm indicates that more than 3 milliseconds of an out of frame condition has occurred The OOF ...

Страница 29: ...nt where the frame of a specified rate OC 12 OC 3 OC 1 DS1 or DS3 is assembled and the point where the frame of that same rate is disassembled The Test Set has four Path LED indicators as follows The AIS Alarm Indication Signal indicates an upstream STS 1 STS 3c or STS 12c path failure in the monitored direction The STS 1 and STS 3c paths may travel across multiple STS n transmission facilities an...

Страница 30: ...multiple STS n or OC n transmission facilities and a failure in any one of them will cause a VT path AIS at all of the downstream points The RDI Remote Defect Indicator indicates a VT1 5 path failure in the other direction unmonitored direction In other words the PTE receiving the other direction of the monitored VT1 5 has entered a failure state or is receiving a line AIS The FEBE Far End Block E...

Страница 31: ...front panel shown in Figure 2 7 has eleven red LED payload indicators They are arranged in three individual columns under the heading PAYLOAD DS1 DS3 The function of each are as follows LOS indicates the loss of the DSX 1 or DSX 3 signal LOF indicates the loss of the DS1 or DS3 payload framing PAR indicates a parity error in the DS3 M13 or Cbit frame formatted payload CRC indicates one or more err...

Страница 32: ... the key will flash once an alarm or error has been detected during the test cycle Pressing this key will display the history status of the alarm and error LED indicators instead of the current status Releasing this key will return to the current status display within 500 milliseconds History is cleared when a new test cycle starts Artisan Technology Group Quality Instrumentation Guaranteed 888 88...

Страница 33: ...un resume sequence saving stored history data In other words when the test cycle has been stopped pressing the PAUSE RESUME key will change the test mode from stopped to pause Then the RUN STOP key is pressed to restart the test in the paused state Next the PAUSE RESUME key is pressed restarting the test cycle without loss of the previous test data Figure 2 9 Measurement Controls and Indicators Re...

Страница 34: ...m AC coupled clock inputs The next three BNC connectors are ECL compatible outputs for TX CLOCK DATA and SYNC The clock and data rates are 52 Mb s NRZ formatted The synchronization rate is 8 kHz it identifies the start of each STS 1 frame The next BNC connector is TX 155 Mb s CLOCK output The signal is AC coupled and the amplitude is nominal of 800 MV The last two TX connectors on the right are Di...

Страница 35: ...vides the 51 84 MHz ECL compatible 50 ohm output that was recovered from the received STS 1 signal The BIT ERR TTL OUT connector will generate a DS3 RZ pulse for each bit error DS1 NRZ pulse for each bit error STS 3c byte wide NRZ pulse for each occurrence of 1 to 8 errors in each byte STS 12c four byte wide NRZ pulse for each occurrence of 1 to 32 errors in 4 contiguous bytes The last two connect...

Страница 36: ...he appropriate rate and expects a return data bit within 500 ns after each rising edge of the clock The pin numbers and functions are listed in Table 2 1 Figure 2 12 shows the transmit data input pins 2 and 9 They are differentially terminated with a 100 ohm input impedance All other signals are high impedance differential outputs Pins 1 and 8 are signal ground Table 2 1 Data Communications Channe...

Страница 37: ... condition would continue for x amount of frames This also is the start to end time that the event will occur An APS Automatic Protection Switching is the capability of the transmission system to detect a failure on a working facility and to switch to a standby facility to recover the traffic In SONET the transmission is protected on optical lines from the Head end the point at which the Line Over...

Страница 38: ... Transmission Test Set LCD menu structures and displays In addition to the general displays and menus there are separate sections that detail setup receiver and transmitter specifics Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 39: ...ystem Setup Enter Increment and Decrement The left and right arrow keys are used to move the cursor The increment and decrement keys can be used to move the cursor and change values The left column of Figure 3 2 shows nine main menus that make up the Setup main menu system It is a continuous loop that begins with the SONET QUICKSET LCD display and ends with the ST2400 COM LINK display menu When po...

Страница 40: ...ectrical one for each of the signal rates OC 12 OC 3 OC 1 and STSX 1 The OC 12 menu has four payload choices DS3 VT 3c and 12c The cursor in Figure 3 2 is positioned around the 3c payload pressing the ENTER key maps four 3c payloads into an OC 12 SONET signal In this mode the ST112 SONET Transmission Test Set will replicate the same 3c signal four times and the appropriate front panel rate and pay...

Страница 41: ... the enter key will access the submenu from which one of the ten LOC locations can be RCLL recalled or STOR stored Up to ten individual user setups can be saved in memory locations 0 through 9 A unique 10 character label can be stored with each saved setup The arrow keys are used to position the cursor anywhere in the label area and the INC or DEC key is used to scroll through the ASCII characters...

Страница 42: ...e next menu Next is the REPORT SETUP PRINT menu used to control the printing Setting it to OFF means no printout ERR will print a report each time an error is detected during a test cycle EOT will print a report summary at the end of the test cycle BOTH will print on error and at the end of test cycle The printer can be connected to either the parallel or serial RS 232 C port Parallel is the facto...

Страница 43: ...t the ENTER Key should be pressed to enter the new value Use the setup key to access the GPIB port characteristics menu shown in Figure 3 3 The port address is an integer from 0 to 31 It can be changed with the INC or DEC keys The enter key LED will flash push it before proceeding Either an EOI End Or Identify or EOI LF End Or Identify with a Line Feed can be used to terminate the GPIB message sen...

Страница 44: ...he OVHD key on the receiver panel Each time the key is pressed the next group of overhead bytes will be displayed in a continuous loop until some other key is pressed There are nine displays of four bytes each and one APS display The first display screen illustrated in Figure 3 4 shows the cursor around the word DISP display Pressing the ENTER key will display the contents of the J1 TRACE which is...

Страница 45: ...switched and the Switch Line the line that the Request Line wants to switch to can be any decimal number from 0 to 15 Figure 3 5 Automatic Protection Switching APS The bottom line of the APS will display one of sixteen possible messages 0 No Request 8 Manual Switch 1 Do Not Revert 9 Invalid 2 Reserve Request 10 SD Lo Priority 3 Invalid 11 SD Hi Priority 4 Exercise 12 SF Lo Priority 5 Invalid 13 SF...

Страница 46: ...ys to display the others The mapping choice that is being displayed is selected by pressing the ENTER key or any other key when leaving the mapping menus STS 12c STS 12 Concatenated Payload Mapping STS 3c STS 3 Concatenated Payload Mapping VT1 5 BIT FLOAT DS1 Asynchronous Payload Mapping Floating Mode VT1 5 BYTE FLOAT DS1 Byte Synchronous Payload Mapping Floating Mode DS3 DS3 Asynchronous Payload ...

Страница 47: ...n this example and its STS position 2 2 in this case when using the GR 253 CORE numbering format The STS channel can be changed using the INC DEC and ENTER keys The ACTIVE VT CHANNEL menu is used to choose one VT1 5 sub channel from the chosen STS Channel There are twenty eight 1 28 VT1 5 sub channels in this example number nine 9 is selected In the VT CHANNEL MAP menu the virtual tributaries can ...

Страница 48: ...6 65 7 1 7 25 8 37 66 1 2 8 2 9 38 67 2 2 9 6 10 39 68 3 2 10 10 11 40 69 4 2 11 14 12 41 70 5 2 12 18 13 42 71 6 2 13 22 14 43 72 7 2 14 26 15 44 73 1 3 15 3 16 45 74 2 3 16 7 17 46 75 3 3 17 11 18 47 76 4 3 18 15 19 48 77 5 3 19 19 20 49 78 6 3 20 23 21 50 79 7 3 21 27 22 51 80 1 4 22 4 23 52 81 2 4 23 8 24 53 82 3 4 24 12 25 54 83 4 4 25 16 26 55 84 5 4 26 20 27 56 85 6 4 27 24 28 57 86 7 4 28 ...

Страница 49: ...nel The pointer word is located in the V1 and V2 bytes of the VT frame The VT pointer can be any value from 0 to 103 Data Communications Channel Orderwire Menus Receiver Figure 3 10 DCC Order Wire Menus Receiver Data or voice can be received on a device connected to the rear panel DCC OW connector on the Section or Line DCC or Order Wire channels Pressing the receiver DCC OW key one or more times ...

Страница 50: ... included in the SECT section LINE PATH VT Virtual Tributary and STSX 1 error summary menus The first three menus in Figure 3 11 include the ES Errored Seconds SES Severely Errored Seconds the BER Bit Error Rate and the TOT Total Count The two VT displays are only present when the VT1 5 payload is selected The total TOT and BER is displayed for the VT BIP 2 Bit Interleaved Parity 2 in the fourth L...

Страница 51: ...the cursor around OPTIC and pressing the enter key will take you to the next menu shown on the right side of Figure 3 13 This RX INPUT SELECTION menu is used to choose one of three optical rates OC 1 OC 3 and OC 12 or BIPOLAR Selecting the word BIPOLAR in that menu will return the display the first RX INPUT SELECTION menu that offers three electrical input and access to the OPTIC optical menu Sele...

Страница 52: ...hapter The cursor has three positions OFF ON and DWELL time in seconds As the name Trouble Scan implies in this mode all channels are scanned for problems DWELL is the length of sample time for each channel 10 seconds in this example Dwell time can be set from 5 to 99 seconds The RUN key must be pressed starting the test cycle before Trouble Scan can be set to ON The test cycle must be stopped bef...

Страница 53: ...ayloads require manual selection from the list of available patterns QRW Quasi Random Word Patterns 2E15 PRBS 2E23 PRBS Pseudo Random Bit Sequence and WORD is a payload dependent eight or twenty four bit pattern When the receiver is configured for DS1 or VT1 5 a twenty four bit pattern is expected The DS3 payload configuration expects an eight bit word pattern Use the arrow keys to move the cursor...

Страница 54: ...of the test cycle Pressing it a second time will display the payload errors Illustrated in Figure 3 16 are the 12c and DS1 payload error displays The DS3 and 3c error displays are not illustrated but they are the same and only one payload error display will be accessible when its respective payload is selected The payload error display shows the TOT total errors that occurred during the test cycle...

Страница 55: ... Error Displays Receiver Figure 3 17 illustrates the DSX 3 Error Measurement Displays Figure 3 18 DSX 1 Payload Error Displays Receiver Figure 3 18 illustrates the DSX 1 Error Measurement Displays Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 56: ...selected is number one in this example On the lower right side of the display is the Framing Pattern UFM and the Test Pattern QRW are shown Use this display to see the transmitted configuration at a glance Configuration changes made in the quick setup menus will be displayed whether or not they are electrical Both displays shown in Figure 3 19 TX ELECTRICAL OUTPUT and the Current Configuration are...

Страница 57: ...e arrow keys to move the cursor to the word EDIT and press the enter key to began the edit session The J1 Trace Edit menu is used to add an ASCII message clear the J1 Trace Field or fill it with any hexadecimal code Use the arrow INC and DEC and ENTER keys to select change and store values Press the OVHD key to return to the LINE APS menu The H1 SS Bits bits 5 and 6 of the H1 byte can be changed t...

Страница 58: ...to select one of the maps The LED indicator in the enter key will flash whenever a selection is requested or required Three yellow LED indicators identify which mapping is active DS3 VT or 3c 12c Additional menus configuration dependent may be accessible with each push of the transmitter MAPPING Key When the OC 3 rate with a VT1 5 payload is selected for example three menus shown in Figure 3 23 wi...

Страница 59: ...n in Figure 3 25 The SPE and VT pointers keep track of the starting positions of their respective payloads In the SPE pointer menu the number 522 under the PTR label represents the current pointer value located in the H1 and H2 bytes It is the offset between the H3 byte and the J1 byte the first byte of the STS SPE The number 522 under the NDF label is a variable value that can be changed to gener...

Страница 60: ...s to move the cursor and the INC and DEC keys to increase or decrease the LOS time from 1 to 150 microseconds Moving the cursor to any of the three digits 100 in this example and holding the INC or DEC key will cause the numerical value to scroll Releasing the INC or DEC key or reaching the limit will stop the scroll Each of the other alarm menus have the following parameters The alarm Loss of the...

Страница 61: ...s are used to change values The ENTER key is used to execute the function Enabling any error will disable all other active errors The error rate ranges from 1 0E 3 to 1 0E 9 The ERROR RATE OUT OF RANGE message will be displayed whenever an error rate greater or smaller than the range is inserted Data Communications Channel Orderwire DCC OW Figure 3 28 DCC Order Wire Configuration Menus Transmitter...

Страница 62: ...uration dependent This set is accessible when the OC 3 or OC 12 rates and the DS3 VT1 5 OC 3c or OC 12c payloads are selected The top two TX PATTERN menus on the left side of Figure 3 29 are used to test the DSX 1 VT1 5 and the STS 3c payloads The test patterns available DSX 1 VT1 5 menu illustrated in Figure 3 29 are QRW Quasi Random Word two Pseudo Random Bit Sequences 2E15 and 2E23 and a six ch...

Страница 63: ... Automatic Line Build Outs A Daly pattern stresses a circuit by introducing rapid transitions from long sequences of low density octets to high density octets high density octets to low density octets and rapid 1 0 1 0 transitions The 1 IN 8 pattern containing strings of seven sequential zeros is used on a circuit equipped with B8ZS to determine the ability of a circuit to handle payload signals h...

Страница 64: ... Alarm menus They are rate and payload dependent The top one on the left and the two center ones illustrated in Figure 3 32 will become accessible when the test set is configured for the OC 12 rate with a 3c payload The top one on the right and the two center ones Figure 3 32 will become accessible when the test set is configured for the OC 12 rate with a 3c payload Other menus some of which are s...

Страница 65: ...e Error Alarm LCD menus that will be displayed when the test set is configured for DSX 3 cross connect each functions as follows This SINGLE ERR menu is used to inject one single bit error into the DS3 payload by positioning the cursor around the DS3 on the second line of the display and pressing the enter key The left side of the top line provides the display name but the right side indicates the...

Страница 66: ...d to inject a burst of parity errors The number of parity errored frames FRM can be set from 1 to 511 and will be injected each time the enter key is pressed during the test cycle Use the arrow keys to position the cursor and the INC increment and DEC decrement keys to change the number of frames DS3 PATH ALARMS SEF is used to inject a burst of severely errored frames with either M13 or CBIT frami...

Страница 67: ...negative exponent An error rate of 1 0E 6 would equate to the decimal number derived from sending one errored bit in a million bits In other words one divided by one million would equal 0 000001 or 1 0E 6 decimal Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 68: ...00 or VT100 terminal emulator These full screen displays provide more information than individual LCD displays and can be used with a remote or local terminal There are separate sections in this chapter that detail setup receiver and transmitter specifics Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 69: ...le to connect the serial port of the terminal and the Test Set as shown in Figure 4 1 The cable must have a 25 pin D type plug for the Test Set and the appropriate mating connector for the terminal or selected PC port Chapter 6 External Controllers and Printers provides ST112 SONET Transmission Test Set port pinouts this chapter and Chapter 3 LCD Menus and Displays details the port settings RS 232...

Страница 70: ...baud rates are supported Communications Initiation Pressing the enter key on the terminal or PC should cause the Test Set prompt to appear on the terminal screen ST112 If it does not or if a message appears indicating that the input was lost verify the port parameter settings for the ST112 SONET Transmission Test Set and the terminal Verify that the Test Set RS 232 ECHO is enabled using the setup ...

Страница 71: ...Setup w Time r DSX Line Code and the list ends with m Current Configuration Pressing the appropriate key q w r m on the keyboard will access these submenus Menu keys are only active when they are displayed The Current Configuration at the top center of Figure 4 2 is a read only display It shows the transmitter and receiver selections that were made in other menus The m key returns it to the top ce...

Страница 72: ... no when prompted When the error log is full no additional data can be stored Pressing CTRL R while a test is running will stop the test and disable the error log CTRL P is used to pause the test and maintain the current error log Pressing CTRL P again will restart the test in progress The words STOPPED RUNNING or PAUSED will appear under the appropriate control key indicating the test status Test...

Страница 73: ...l outputs are not in use The QUICK SETUP menu shown in Figure 4 3 offers three electrical and three optical rates DSX 1 DSX1 and DSX 3 DSX3 are two asynchronous cross connect electrical rates STSX 1 STSX1 is the synchronous cross connect electrical rate Either a DS3 or VT1 5 payload can be chosen for the STSX 1 rate DSX 1 is always available at the front panel Either DSX 3 or STSX 1 will be availa...

Страница 74: ...ges are immediately entered into a battery backed memory and will be retained even when the Test Set is powered off DSX 1 Line Code Setup Menu Figure 4 5 VFP DSX 1 Line Code Setup Menu The DSX 1 DSX1 LINE CODE SETUP menu shown in Figure 4 5 is used to configure the DSX 1 signals with either AMI Alternate Mark Inversion or B8ZS Bipolar 8 Zero Substitution line codes Both can be used to test T 1 com...

Страница 75: ...ed to execute the selected function RECALL in this example Up to 10 individual user setups can be saved in memory location 0 to 9 A unique 10 character label can be stored with each saved setup The arrow keys are used to move the reverse video cursor between variables When the cursor is positioned at the LOCATION menu item the number keys are used to select one of ten possible storage areas If a u...

Страница 76: ...left or right arrow will switch to the MEASURE CONTROL field Moving to the end of the MEASURE CONTROL field with the left or right arrow will not switch to the TEST TIME field Use the number keys to change the time that the test will run for in terms of days DD hours HH minutes MM and seconds SS The maximum test time supported is 9 days 23 hours 59 minutes and 59 seconds All changes are immediatel...

Страница 77: ... the menu will enter the new value PRINT PORT is used to set the printer port to either parallel or RS232 serial The printer may be connected to the parallel port on the Test Set rear panel Or the VT100 emulator can be used to set up the Test Set then use CTRL Q to exit the VT100 program and use the remote run command test_state run to initialize the test This allows the test data to be fed back a...

Страница 78: ...described under the SETUP Screen A different set of submenus are listed in the upper left field now included are SETUP Input q Optics w Mapping r and VT1 5 Channel t CONFIGURATION VT1 5 DSX 1 Cfg y DS3 DSX 3 Cfg u STS 3c Cfg i and the Current Cfg m detailed earlier in this chapter ANALYSIS SPE Pointer o VT Pointer p TOH POH s J1 Trace Message g APS Bytes h VT Channel Scan j and Trouble Scan n Arti...

Страница 79: ...mation from the Test Set transmitter configuration When either AUTOLINK or AUTOSEEK is on the VT100 menus for Mapping Pattern and Framing are inaccessible The BIPOLAR TERMINATION menu area is used to configure the receiver s electrical inputs for either TERM termination or MONITOR mode The TERM input terminates the electrical cross connect input signal The MONITOR input configures the appropriate ...

Страница 80: ...ct a valid STS Channel for analysis The total number of Valid STS Channels will change with the Optical Rate Selected Mapping Setup Menu Receiver Figure 4 12 Receiver Payload Mapping Select Mapping menu r to access the ST112 SONET Transmission Test Set receiver payload maps shown in Figure 4 12 and detailed in the Bellcore GR 253 CORE standard Use the arrow keys to position the reverse video curso...

Страница 81: ...ERING at the top is used to map the virtual tributaries sequentially 1 to 28 or in a four by seven 4x7 matrix in accordance with Bellcore GR 253 CORE illustrated in Figure 4 13 The lower portion of this display shows that 28 channels are accessible 1 28 and that STS Channel 1 in this example is being analyze Use the arrow keys to position the reverse video cursor and the enter key to activate the ...

Страница 82: ...onal Patterns are two Pseudo Random Bit Sequence 2E15 and 2E23 and the 24 bit WORD DS3 DSX 3 Configuration Menu Receiver Figure 4 16 DS3 DSX 3 Configuration Menu Receiver The VT100 menu shown in Figure 4 16 is used to configure the receiver to the incoming DS3 or DSX 3 DSX3 payload FRAMING and PATTERN that will be analyzed In this example the M13 M1 3 and 2E15 Pseudo Random Bit Sequence has been s...

Страница 83: ...18 is used to view the pointer values that accommodate differences caused by adjusting the starting position of the payload The SPE POINTER displays the current pointer value The number 522 in this example represents the value extracted from the H1 and H2 bytes It is the offset between the H3 byte and first byte J1 of the STS SPE The NDF New Data Flag indicates the total number of arbitrary change...

Страница 84: ... active channel one of the 28 Virtual Tributaries Channels are selected in the Receiver VT1 5 Channel Setup Menu t The NDF New Data Flag indicates the total number of arbitrary changes in the VT pointer value recorded during the test cycle The POINTER JUSTIFICATION values for PJ and PJ are zero in this example They show the total count of the positive and negative justifications recorded during th...

Страница 85: ...p of the display are the K1 and K2 bytes in hexadecimal The APS line architecture can be either 1 1 one to one or 1 N one to several allocated lines specified by the number N The line direction can be UNI unidirectional BI bi directional or Other indicating none of the four line types Code 8 Manual Switching is being shown in Figure 4 22 other possible codes are listed below The Request Line the l...

Страница 86: ... on one or all of them In this example the first six channels have been scanned The channel ID for each except channel three has been displayed Channel three displays the letters D QW for its framing and pattern indicators as indicated in Table 4 1 VT1 5 Channel Scan cannot be used when Trouble Scan is running VT1 5 Channel Scan Use and Operation is detailed in the Applications Chapter of this man...

Страница 87: ...been scanned and the third is being scanned Trouble Scan is detailed in the Applications Chapter of this manual Receiver Error Summary Analysis Display Figure 4 25 Receiver Error Summary Terminal Display Pressing the F3 RESULTS function key will display the read only receiver error summary menu shown in Figure 4 25 The large RX ERROR SUMMARY display area does not list any Artisan Technology Group ...

Страница 88: ...rom receiving one errored bit in one million In other words one divided by one million would equal 0 000001 or 1 0E 6 decimal Transmitter VFP Menus and Displays Transmitter Current Configuration Figure 4 26 Virtual Front Panel VFP Transmitter Configuration Use the F1 function key to access the Transmitter setup display Its menu and submenus are used to configure the SONET test signal The main menu...

Страница 89: ...ion has five choices OFF and four rates The OC 48 OC48 rate can only be activated when the ST112 SONET Transmission Test Set is being used in the Combined Dual Mode with an ST2400 2 4 Gb s SDH SONET Test Set The Combined Dual Mode is detailed in the Applications Chapter of this manual The other three rates OC 1 OC 3 and OC 12 are detailed in this text OC 12 has been selected in this example Data o...

Страница 90: ...here is one 52 Mb s STS 1 clock input and one 155 Mb s STS 3 clock input BITS extracts the timing from an incoming BITS DSX 1 signal connected to the rear panel 100 ohm input provided The second menu item TX V1 5 BITS INPUT TERMINATION is used to configure this rear panel input for normal termination TERM or a low level input from a network element s MONITOR output LOOP as the name implies is LOOP...

Страница 91: ...he rear panel BITS DSX 1 connector and mapped into the VT1 5 payload The second menu item TX V1 5 BITS INPUT TERMINATION is used to configure this rear panel input for normal termination TERM or a low level input from a network element s MONITOR output Use the up and down arrow keys to move between menu areas and the left and right arrow keys to position the cursor within either menu area The ENTE...

Страница 92: ...om 0 to 782 The NDF New Data Flag indicates an arbitrary change in the pointer value due to a change in the payload position Change the NEW POINTER NDF number when the reverse video cursor is over it as illustrated Press the F4 key during the test cycle to execute the SPE pointer change Use the arrow keys to move the cursor to either SINGLE PJ or SINGLE PJ and press the F4 key to change the respec...

Страница 93: ... New Data Flag indicates an arbitrary change in the pointer value due to a change in the payload position Use the arrow keys to move the reverse video cursor to the NEW POINTER NDF number Use the VT100 keyboard to type a different VT pointer number Press the F4 key during the test cycle to execute the change Use the arrow keys to move the cursor to either SINGLE PJ or SINGLE PJ and press the F4 ke...

Страница 94: ...MS and CONT ALARMS When the reverse video course is at the CONTINUOUS ALARMS heading pressing the F4 key will clear all the continuous alarms Using the left and right arrow will move through the list of continuous alarms and pressing the enter key will select the alarm under the cursor Use the down arrow key to move the cursor to the CONT ALARMS heading and the right arrow and enter keys to move t...

Страница 95: ...reverse video cursor over the alarm condition to be activated for the number of frames specified 12 in this example One and only one alarm condition can be generated in a burst When the down arrow is used to move the cursor to the NUMBER OF BURST FRAMES heading the F4 key can be pressed to generate the selected burst condition VT RDI in this example Figure 4 34 SONET Alarms LOS Example Transmitter...

Страница 96: ...on the reverse video cursor and the enter key to execute the set error rate STSX 1 BPV ERROR RATE section is used to set the error rate range from 1 0E 3 to 1 0E 9 and generate ENABLE ON it on the electrical cross connect rate STSX 1 Use the arrow keys to position the reverse video cursor and the enter key to execute the set error rate BIP2 ERROR RATE section is used to set the error rate range fr...

Страница 97: ... to navigate through the Section Line and Path overhead bytes shown in Figure 4 36 The up and down arrow key will move from line to line and the left and right will move horizontally along each line in the matrix Each SONET byte designator is to the left of the equal sign and the byte value is to the right A1 F6 in this example Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOU...

Страница 98: ...d as shown in the this is a test example Press the up arrow one time to move to the FILL MESSAGE HEX section The F4 execute key will be displayed next to it Any hexadecimal code can be entered but only those within the ASCII range can be displayed Press the up arrow one more time and the F4 key will appear next to the selection labeled CLEAR MESSAGE 00 Press the F4 key to clear the trace message A...

Страница 99: ... ALL of the 28 VT channels that will be configured before mapping them into the Synchronous Payload Envelopment The lower portion of this display Figure 4 38 shows that 28 channels are accessible 1 28 to and that VT channel number 1 in this example is being configured with the settings from the VT1 5 DSX 1 Configuration menu Figure 4 40 detailed later in this chapter Use the arrows keys to positio...

Страница 100: ...per Frame ESF Extended Super Frame and SLC96 Subscriber Loop Carrier 96 The next menu section is used to configure the test patterns for DSX 1 DSX1 and VT1 5 payloads as follows QRW Quasi Random Word 2E15 PRBS Pseudo Random Bit Sequence 2E23 PRBS and a six character hexadecimal word wd440004 in this example The third menu section is used to access the DSX 1 DSX1 STRESS PATTERN that can be used for...

Страница 101: ...ntroducing rapid transitions from long sequences of low density octets to high density octets high density octets to low density octets and rapid 1 0 1 0 transitions The 1 IN 8 pattern containing strings of seven sequential zeros is used on a circuit equipped with B8ZS to determine the ability of a circuit to handle payload signals having a minimum ones density Use of this pattern will often revea...

Страница 102: ...n of a SF SLC 96 or ESF Yellow in a DS1 payload When the SINGLE ERROR INJECT heading is selected the word F4 in reverse video will appear on its right side indicating that each push of the F4 function key will insert one bit error into the DS1 payload The last menu heading DS1 VT BIT ERROR RATE has two selections The one on the left is used to set the error rate from 1 0E 9 to 1 5E 3 And the other...

Страница 103: ...ence has been selected Other FRAMING choices include CBIT C BIT and UNFRM Unframed configurations Additional patterns include 2E23 Pseudo Random Bit Sequence and the 8 bit WORD This menu screen is only accessible when the DSX 3 Rate or DS3 Payload is selected Make the appropriate choices from the QUICK SETUP menu CTRL T menu q Use the arrow keys to navigate through the menu and the enter key to en...

Страница 104: ... the number of frames set in the subheading 44 in this example The F4 key is press during the test cycle to insert the burst alarm PARITY in this example The next main heading SINGLE ERROR INJECT will insert a single bit error into the DS3 payload each time the F4 function key is pressed The F4 key command is hidden until the reverse video cursor is moved to this selection The bottom main heading ...

Страница 105: ...R RATE is used to set the error rate to a number from 1 0E 9 to 1 5E 3 and enable Bipolar Violations The next main heading DSX 3 DSX3 BPV SINGLE ERROR INJECT is used to inject one Bipolar Violation at a time When selected the hidden F4 function key will be displayed The DSX 3 DSX3 LOSS OF SIGNAL alarm can be set for a period from 1 to 150 microseconds The hidden F4 key will be displayed and used t...

Страница 106: ...the Quick Setup menu Use this menu to configure the STS 3c payload PATTERN that will be transmitted and to inject a single bit error in that pattern Under the STS 3c STS3C PATTERN heading either the 2E23 Pseudo Random Bit Sequence or the 2E23 INV Inverted can be selected Use the arrow keys and enter key to change selections Pressing the F4 function key will inject a single error when the SINGLE ER...

Страница 107: ...ss the quick setup menu Use this menu to configure the STS 12c payload PATTERN that will be transmitted and to inject a single bit error in that pattern Under the STS 12c STS12C PATTERN heading select either the 2E23 Pseudo Random Bit Sequence or the 2E23 INV Inverted Use the arrow keys and enter key to change selections Pressing the F4 function key will inject a single error when the SINGLE ERROR...

Страница 108: ...Transmission Test Set can be used for Passive Monitoring Active Analysis Circuit Pack Testing VT Channel Scan ADM and E DCS Testing Combined Dual Mode Virtual Front Panel Combined Dual Mode Trouble Scan Basics Trouble Scan Combined Dual Mode Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 109: ...er as illustrated in Figure 5 1 to connect and disconnect the Test Set without disrupting live traffic This setup is used for non intrusive network monitoring applications It is perfect for LEC IXC local exchange carrier inter exchange carrier cross boundary or other long term passive performance monitoring It does not allow line error injection testing This installation splits the optical signal ...

Страница 110: ...nd networks On the transmitter side the Test Set provides Four DSX 1 outputs that are always on Six STSX 1 or DSX 3 outputs that can be activated for testing One optical output connector that can be switched to OC 12 OC 3 or OC 1 On the receiver side the Test Set provides One optical input connector that can be switched to OC 12 OC 3 or OC 1 One STSX 1 or DSX 3 input connector that can accept eith...

Страница 111: ...o busy up the circuit pack under test and its OC 3 output is being analyzed by the Test Set receiver input All six STSX 1 outputs could be used with signal splitters to test an OC 12 Circuit Pack Payload and overhead manipulation as detailed in Chapters 3 and 4 can be used to analyze the Circuit Pack Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 112: ... than the STS 1 rate 51 84 Mb s for example asynchronous services below the DS3 rate 45 Mb s Figure 5 5 VT1 5 Channel Configuration VFP Menu Transmitter Routing and provisioning can be verified off line because the Test Set can encode valid data into all 28 VT1 5 channels and user selected data into anyone of them Figure 5 5 shows that channel 1 has been selected for user selected data and that 4x...

Страница 113: ...ovisioning The test setup can be done with a single ST112 SONET Transmission Test Set and Terminal because each Test Set has both the Transmitter and Receiver Sections required to analyze the NE Network Element under test In this example the ADM Add Drop Multiplexer or W DCS Wideband Digital Cross Connect System has four OC 3 inputs and one OC 12 output The Test Set transmitter section generates t...

Страница 114: ...tion about the incoming signal or the Test Set Transmitter configuration Autoseek would detect the configuration including channel numbering from the incoming signal and Autolink would obtain the Test Set Transmitter configuration except channel numbering Both would interfere with the Provisioning Verification There are two types of VT1 5 channel numbering The top of Figure 5 8 shows the VT1 5 Cha...

Страница 115: ...setting the STS channel to any number from 1 to 12 will display the same information During the VT1 5 Channel Scan test the transmitter is also generating and the receiver is receiving a channel identification ch01 through ch28 on each Virtual Tributary in the selected STS channel If provisioning was done incorrectly the U QRW U QW being generated would appear on another channel and the detected c...

Страница 116: ...8 13 42 71 6 2 13 22 14 43 72 7 2 14 26 15 44 73 1 3 15 3 16 45 74 2 3 16 7 17 46 75 3 3 17 11 18 47 76 4 3 18 15 19 48 77 5 3 19 19 20 49 78 6 3 20 23 21 50 79 7 3 21 27 22 51 80 1 4 22 4 23 52 81 2 4 23 8 24 53 82 3 4 24 12 25 54 83 4 4 25 16 26 55 84 5 4 26 20 27 56 85 6 4 27 24 28 57 86 7 4 28 28 29 58 87 When testing provisioning or mapping 1x28 or 4x7 avoid using channels 1 10 19 and 28 beca...

Страница 117: ...o end channel provisioning and can be used for troubleshooting Summary VT1 5 Channel Scan Setup The following summarizes the setup used for the Test Set VT Channel Scan feature Setup Select the Payload and the Rate for both the transmitter and the receiver sections The payload must be VT1 5 but the Rate can be STSX 1 OC 1 OC 3 or OC 12 Transmitter Set the mapping r to INT VT1 5 Bit Float VT Channe...

Страница 118: ...mbined Dual Mode W AR N I N G Always avoid exposure to the laser beam Before power is applied to the ST2400 2 4 Gb s SDH SONET Test Set be sure that all laser outputs are either covered with the screw cap provided or connected to the appropriate circuit Be sure to read understand and follow all of the Laser Safety instructions in the ST2400 Test Set documentation Figure 5 12 illustrates the front ...

Страница 119: ...een the ST2400 Test Set and a Terminal1 A straight through cable with a DB 9 plug connects to the ST2400 Test Set RS 232 socket The other end is adapted to the Terminal requirements The hardware configuration and cabling shown in Figure 5 12 can be used to setup and run tests in the Combined Dual Mode A fiber optical cable with a 15 dB fixed value attenuator such as AMP 06 0033 FC is used in place...

Страница 120: ...2400 2 4Gb s SDH SONET Test Set must be configured for SONET2 operation before it can be used in the dual mode If it is not the Test Set will display a LINK FAILED CHANGE ST2400 TO SONET MODE message After the mode is changed the ST2400 2 4Gb s SDH SONET Test Set must receive a power cycle then the link can be opened When the link is established remote commands sent through the RS 232 port will be...

Страница 121: ...describes and details all of the VFP menus listed in the SETUP TX SETUP and RX SETUP menu list The reader should be familiar with them before proceeding with the Combined Dual Mode setup W AR N I N G Always avoid exposure to the laser beam Before power is applied to the ST2400 2 4 Gb s SDH SONET Test Set be sure that all laser outputs are either covered with the screw cap provided or connected to ...

Страница 122: ...ed to power on the ST2400 Laser It also shows that this ST2400 has a TX LASER WAVELENGTH option either 1310nm or 1550nm can be selected The ST2400 2 4Gb s SDH SONET Test Set User Manual describes that option Figure 5 17 Quick Setup menu Combined Dual Mode Press CTRL T to access the SETUP main menu Then select the Quick Setup submenu q shown in Figure 5 17 This menu is used to select the rate and p...

Страница 123: ...v key is used to switch between the them These menus are detailed in the ST2400 2 4Gb s SDH SONET Test Set Manual Summary of Combined Dual Mode Verification The following summaries the steps used to setup and verify of the Combined Dual Mode after the hardware cabling and terminal configuration has been completed 1 Use the Combined Mode ON command to initiate the combined Dual mode 2 Use the VT100...

Страница 124: ... All of the errors and alarms are detailed in the Receiver Status Indicators section of Chapter 2 When the Trouble Scan Mode is set to ON it takes over complete command of the Test Set all other Test Set receiver features are not available After starting Trouble Scan the test will run continuously or stop automatically at the end of the time that was set in the Timed Test menu The Virtual Front Pa...

Страница 125: ...several different payloads The first STS 3 can be mapping DS3 payloads the second STS 3 can be mapping a 3c payload and the other two STS 3 channels can have entirely different payloads VT1 5 for example Such an example would provide ten view channels The first three 1 2 and 3 would be multiplexed into the first STS 3 Then view channel 4 with its 3c payload would be all of the second STS 3 all thr...

Страница 126: ...ed Event Log Figure 5 23 illustrates the detailed event logs for view channels 3 and 4 respectively Trouble Scan Summary Trouble Scan is both a mode and a function The mode can be set to ON anytime but the function only runs and logs maintenance signals errors and alarms during the test cycle Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 127: ...level with VT1 5 payload mapping The Trouble Scan Mode can be enabled set to ON using the software switch at the bottom of the display The CHANNEL DWELL TIME can also be set from 1 to 99 seconds at the bottom of the same display The VFP display in Figure 5 24 shows 16 STS 3 channels each containing its own set of three STS 1 channels These channels are numbered from 1 1 to 16 3 sequentially View C...

Страница 128: ...e ST112 SONET Transmission Test Set 5 21 Figure 5 25 Dwell Period Event Log OC 48 Rate Figure 5 26 Detailed Event Log OC 48 Rate Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 129: ...Applications and Use 5 22 ST112 SONET Transmission Test Set Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 130: ...ollers and Printers This chapter explains how to connect external devices to the RS 232 C GPIB and parallel ports This chapter also includes port setup procedures Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 131: ... short run applications Use the RS 232 C Port manually from a VT100 terminal or VT100 emulation program entering commands individually Recommended for learning commands and syntax Use the GPIB or RS 232 C Port Automatically from a PC or engineering workstation using a control program Recommended for factory automation applications Printer Applications The ST112 SONET Transmission Test Set can prin...

Страница 132: ... or OFF disabled ON RS 232 C Connector Pinout The RS 232 C interface is a 9 pin D type socket connector located on the rear panel The pin out of this connector is shown in Table 6 2 below The ST112 SONET Transmission Test Set RS 232 C port is wired as a DCE data communications equipment device it receives on pin 2 and transmits on pin 3 Table 6 2 RS 232 C Connector Pin out PIN NAME FUNCTION 1 GND ...

Страница 133: ...prompt appears on the terminal s display ST112 If the above prompt does not appear then one or more of the following problems may exist 1 The cable may be defective 2 The cable could be the wrong cable type Use a straight through modem cable if the terminal is configured as a DTE or a null modem cable if the terminal is DCE configured 3 The RS 232 C port setup baud rate data bits parity etc may no...

Страница 134: ...Command For Interface Command mnemonic found but it is not valid for the RS 232 C interface Invalid Command Type Command mnemonic found but it has a missing or added at the end Too Few Parameters One or more expected parameters are missing Too Many Parameters Too many parameters were received or unknown characters were found trailing the command Invalid Parameter Parameter is not valid for the com...

Страница 135: ...ommunications software are available for viewing and reviewing the data An example of the on screen printer display is shown in Figure 6 1 below The first part is an ON ERROR report the second part is a SUMMARY report example 1994 04 02 09 56 28 B1 ERR 1994 04 02 09 56 38 B1 ERR 1994 04 02 09 56 39 B1 ERR 1994 04 02 09 56 47 B2 ERR 1994 04 02 09 56 48 B2 ERR 1994 04 02 09 56 49 B3 ERR 1994 04 02 0...

Страница 136: ...l front panel setup controls The REM LED left side corner of front panel will indicate whether the Test Set is in the remote mode LED on or the normal local mode LED off Press the SETUP key to return the instrument to the local mode Local Lock Out GPIB controllers can also put the ST112 SONET Transmission Test Set into the local lock out mode The LLO LED left side corner of front panel indicates w...

Страница 137: ...ivers used on DI0 lines for maximum data transfer rate GPIB Connector An IEEE 488 2 standard GPIB connector is provided for GPIB communication GPIB Command Format Refer to Chapter 7 for a complete explanation of the Test Set commands Most remote commands are the same for both the GPIB and RS 232 C ports ANSI IEEE 488 2 Programming Manual Requirements This section explains how the ST112 SONET Trans...

Страница 138: ...s from the ANSI IEEE 488 2 1987 standard that are supported in Test Set GPIB interface are listed below For more information refer to your computer or controller documentation and the ANSI IEEE 488 2 1987 standard Sections 4 3 7 1 1 7 3 3 and tables 4 2 4 3 1 PROGRAM MESSAGE 2 PROGRAM MESSAGE TERMINATOR 3 PROGRAM MESSAGE UNIT 4 PROGRAM MESSAGE UNIT SEPARATOR 5 COMMAND MESSAGE UNIT 6 QUERY MESSAGE ...

Страница 139: ...e or more status bits are set The controller uses a serial poll procedure to find out which instrument initiated the SRQ Specific status bits can be enabled or disabled to control which status changes or events result in an SRQ The Test Set status registers can be read and set from the RS 232 control interface however the SRQ function is only available on the GPIB bus A status register may contain...

Страница 140: ...ster Enable Register Commands Set Query Standard Event Status Register SESR ESR Event Status Enable Register ESER ESE ESE Status Byte Register SBR STB Service Request Enable Register SRER SRE SRE The CLS command to clear reset the SESR and return the instrument to the Operation Complete Command Idle State and the Operation Complete Query Idle State In this state the instrument has no data in its i...

Страница 141: ... Set to one if a an attempt has been made to query the output queue when there are no messages available or pending b a command is received but the output queue is not empty or c an attempt has been made to query the output queue when an unterminated command is in the input queue 1 RQC Request Control Not used 0 LSB OPC Operation Complete Set to one after a OPC command is received Event Status Ena...

Страница 142: ...nabled bit in the SESR equals 1 If the ESB is enabled and set to 1 then the RQS and MSS bits will be set to 1 The status of the ESB bit is reevaluated each time one of the bits in the SESR or the Event Status Enable Register ESER changes 4 MAV Message Available This bit is set to 1 when there is an output available for the controller 0 3 Not defined 1 When you use a serial poll to read the SBR bit...

Страница 143: ...External Controllers and Printers 6 14 ST112 SONET Transmission Test Set Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 144: ...e command language and defines all commands Command definitions are grouped by function In addition an alphabetical list of all Test Set commands is provided with page references to individual command descriptions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 145: ...eader used for the query form will be identical to its corresponding set command form except for an added question mark The following examples use the mnemonics for the view angle query and set commands view_angle query command view_angle n set command The view angle query command uses the header view_angle with a question mark and no space The view angle set command uses the same header with a th...

Страница 146: ...eadability Arguments Outside of Legal Ranges If the instrument receives a set command with an argument that is outside the legal range for that argument then the instrument will set the indicated parameter to its maximum or minimum legal value depending on which is closer to the received value Command Line Terminator Command lines must be terminated as follows RS 232 Interface Command lines issued...

Страница 147: ...the Pointer value set to 522 Example interactive session parity_rate 6 sets error generator rate 1 x10 6 parity_rate queries error generator rate setup PARITY_RATE 6 response error_rate on turns error generator on error_rate queries state of error generator ERROR_RATE ON response los_time 135e 06 sets LOS generator time to 135 µs los_enab causes one LOS event alm_burst l_ais configures alarm burst...

Страница 148: ... audio_vol n Audio Volume Set Command 15 audio_vol Audio Volume Query Command 15 date yy yy mm dd Date Set Command 15 date Date Query Command 16 dsx1_code ami b8zs DSX 1 Code Configuration Set Command 16 dsx1_code DSX 1 Code Configuration Query Command 16 edit_setup n s Edit Setup Label Set Command 16 edit_setup n Edit Setup Label Query Command 16 gpib_address GPIB Address Query Command 16 gpib_ad...

Страница 149: ...ceiver VT Mapping Set Command 23 rx_vt_map Receive VT Mapping Query Command 23 TRANSMITTER SETUP AND MODE COMMANDS 24 opt_output on off Optical Output Set Command 24 opt_output Optical Output Query Command 24 sts_sync sts1 sts3 async bits loop Transmit Timing Set Command 24 sts_sync Transmit Timing Query Command 24 tx_dcc off section line Tx Data Comm Channel Set Command 24 tx_dcc Transmit Data Co...

Страница 150: ...attern Set Command 32 s12c_patt_inv Receiver 12c or 3c Pattern Query Command 33 tx_ds3_frm m13 cbit unframed Tx DS3 Framing Format Set Cmd 33 tx_ds3_frm Tx DS3 Framing Format Query Command 33 tx_ds3_pat prbs_15 prbs_23 word Tx DS3 Pattern Set Command 33 tx_ds3_pat Transmitter DS3 Pattern Query Command 33 tx_stress daly1 daly2 daly3 word_18 word_28 word_324 ones zeros off Transmitter Stress Test Se...

Страница 151: ...B1 Errored Seconds Query Command 43 b1_ses B1 Severely Errored Seconds Query Command 43 b2_ber B2 Error Rate Query Command 43 b2_err B2 Error Count Query Command 43 b2_es B2 Errored Seconds Query Command 44 b2_ses B2 Severely Errored Seconds Query Command 44 b3_ber B3 Error Rate Query Command 44 b3_err B3 Error Count Query Command 44 b3_es B3 Errored Seconds Query Command 44 b3_ses B1 Severely Err...

Страница 152: ...th_ais Path AIS Query Command 51 path_b3 Path B3 Query Command 51 path_febe Path FEBE Query Command 51 path_yel Path Yellow Query Command 52 pyld_los Payload LOS Query Command 52 sect_b1 Section B1 Query Command 52 sect_lof Section LOF Query Command 52 sect_los Section LOS Query Command 52 sts_oof STS 1 OOF Query Command 53 vt_ais VT Path AIS Query Command 53 vt_bip2_stat VT Path BIT 2 Query Comma...

Страница 153: ...e Set Command 60 tx_j1_trace message Transmit J1 Trace Set Command 60 tx_j1_trace Transmit J1 Trace Query Command 60 tx_oh_all Transmit Overhead All Query Command 61 tx_oh_def TX Overhead Default Set Command 61 tx_oh_edit on enter esc TX Overhead Edit Command 61 tx_oh_edit TX Overhead Edit Query Command 61 tx_oh_byte s h b TX Overhead Byte Set Command 62 tx_oh_byte s Transmit Overhead Byte Query C...

Страница 154: ... off DS1 Alarm Set Command 69 ds1_alarms DS1 Alarm Query Command 70 ds3_alarms ais xbit idle off DS3 Alarm Set Command 70 ds3_alarms DS3 Alarm Query Command 70 ds3_pth_bur n DS3 Path Burst Alarm Set Command 70 ds3_pth_bur DS3 Path Burst Alarm Query Command 70 ds3_pth_tri DS3 Path Trigger Command 70 ds3_pth_ty frame alarm DS3 Path Alarm Burst Set Command 71 ds3_pth_ty DS3 Path Alarm Burst Query Com...

Страница 155: ...mmand Returns a character string that includes company name instrument model number current software version and software date Example logo Response TEKTRONIX MICROWAVE LOGIC ST112 v vv yyyy mm dd Note v vv will be replaced by the software version number yyyy mm dd will be replaced by the software date idn Identify Returns a character string that includes company name instrument model number and c...

Страница 156: ... Register ESER to the argument n Argument n a decimal number between 0 and 255 Example ese 255 Response NONE Note decimal 255 sets the register to 11111111 binary ese Event Status Enable Register Query Command Sets the Event Status Enable Register ESER to the argument n Example ese Response ESER n n a decimal number between 0 and 255 Note decimal 255 sets the register to 11111111 binary esr Event ...

Страница 157: ...ponse NONE Note decimal 51 indicates the register is set to 00110011 binary Using the IEEE 488 2 GPIB standard register bits are numbered 7 to 0 left to right However the SONET standard labels bits 1 to 8 left to right In either case the MSB is the left most binary bit and the LSB is the right most binary bit sre Service Request Enable Query Command Returns the content of the Service Request Enabl...

Страница 158: ...t settings n 1 sets the ST112 to the OC 1 factory default settings n 2 sets the ST112 to the OC 3 factory default settings n 3 sets the ST112 to the OC 12 factory default settings n 4 sets the ST112 to the DSX 1 factory default settings n 5 sets the ST112 to the DSX 3 factory default settings Example quick_setup 3 Response NONE audio_vol n Audio Volume Set Command Sets the audio volume of the inte...

Страница 159: ... s to the saved setup n Augment n is the setup number from 0 to 9 in decimal s is the string of Example edit_setup 7 OC 12 Test Response NONE Note Up to 10 ASCII characters can be saved with each of the 10 setups The string must be enclosed in quotation marks Only upper case ASCII characters A to Z and numbers 0 to 9 can be used along with the following ASCII symbols edit_setup n Edit Setup Label ...

Страница 160: ...espond to any commands except the GPIB Bus talk_listen from the RS 232 C port Example GPIB Bus off_bus Response None see gpib_bus command Note This command is only used through the RS 232 C Port connection options Options Query Command Returns one or more character strings indicating which options are installed Example options Response OPTIONS OC12 3C 12C Note The response indicates supported test...

Страница 161: ... RS 232 EOL end of line terminator Example rs_pmt_lf on Response NONE Note The current EOL can be set to CR LF CR LF or LF CR rs_pmt_lf RS 232 Prompt Linefeed Query Command Returns a character string that indicates the current RS 232 EOL end of line terminator status Example rs_pmt_lf Response RS_PMT_LF ON Note The current EOL can be on enabled or off disabled Its value is unknown It may be set to...

Страница 162: ...internally stored time of day clock Example time 15 30 45 Response NONE Note Uses 24 hours format HH MM SS Hours Minutes Seconds time Internal Time Clock Query Command Returns the time from the ST112 internal time of day clock Example time Response TIME 15 30 45 view_angle Front panel View Angle Query Command Returns a decimal integer that indicates the display angle of view Example view_angle Res...

Страница 163: ... monitor Argument terminate sets the input gain of the electrical ports to be compatible with signals from dsx and stsx cross connect outputs bridge sets the input gain of the electrical ports to be compatible with signals from dsx and stsx cross connect monitors outputs Example dsx_level Response NONE Note The ST112 receiver input jacks are located on the front panel One is a BNC 75 ohm and the o...

Страница 164: ...ets the Receiver Optical Rate Argument oc1 optical carrier level 1 51 84 Mb s oc3 optical carrier level 3 155 52 Mb s oc12 optical carrier level 12 622 08 Mb s Example rx_ocn oc12 Response NONE Note see Optical Output opt_output and Tx OC n rate tx_ocn commands rx_ocn Receiver Optical Rate Query Command Returns a character string indicating the current Receiver Optical Rate Example rx_ocn Response...

Страница 165: ...urrent signal type being received Example rx_signal Response RX_SIGNAL STSX1 Note The receiver signal can be used to indicate which port is selected The STSX 1 and DC3 signals use the 75 ohm front panel port the DSX 1 is received by the 100 ohm front panel port and the optical port receives all of the OC n signals rx_sts_chan n Receiver STS 1 Channel Set Command Sets the Receiver STS 1 Channel num...

Страница 166: ...ceiver VT1 5 Payload Mapping Argument map1x28 Selects sequential VT channel numbering 1 to 28 map4x7 Select 4 x 7 VT channel numbering Example rx_vt_map map4x7 Response NONE rx_vt_map Receive VT Mapping Query Command Returns a character string indicating the current VT1 5 Payload Mapping selected Example rx_vt_map Response RX_VT_MAP MAP4x7 Note VT1 5 channel numbering mapping can be either sequent...

Страница 167: ... Synchronization Source for the Transmit STS n Frame Argument sts1 use the rear panel STS 1 clock input sts3 use the rear panel STS 3 clock input async use the internal STS 1 51 84 Mb s clock bits use the rear panel BITS TIMING input framed DS1 all ones signal loop use the receive recovered clock Example sts_sync loop Response NONE sts_sync Transmit Timing Query Command Returns a character string ...

Страница 168: ...TS 12 Externally Generated Payload Required Example tx_map 12c Response NONE tx_map Transmitter Mapping Mode Query Command Returns a character string indicating the current Transmitter Payload Mapping Example tx_map Response TX_MAP 12C Note Transmitter Mapping can be INT_DC3 EXT_DC3 INT_BIT_FL EXT_BIT_FL BYTE_FL 3c or 12c see Tx Mapping Mode Set Command tx_ocn oc1 oc3 oc12 Transmitter Optical Rate...

Страница 169: ...s Argument stsx1 enables the stsx1 electrical outputs dsx3 enables the dsx3 electrical outputs Example tx_signal stsx1 Response NONE Note The STSX 1 is automatically selected when the Transmitter Optical Output is enabled see the opt_output on command The DSX 1 output is always active tx_signal Transmitter Signal Query Command Returns a character string indicating the current cross connect signal ...

Страница 170: ...ote See the test time test_time set command The timed test runs for the duration of time set by the test_time command The repeat test runs for the duration of time set by the test_time command test_mode Test Mode Query Command Returns the current status of the test measurement mode Example test_mode Response TEST_MODE TIMED Note See the Test Mode Set Command test_print log prev current off Test Pr...

Страница 171: ...for 10 event free seconds off logs every event Example test_squelch on Response NONE Note When the Squelch is enabled error logging is limited to ten consecutive reports Then Error logging is resumed after 10 event free seconds test_squelch Test Squelch Query Command Returns the current status of the Squelch Example test_squelch Response TEST_SQUELCH ON Note See the Test Squelch Set Command test_s...

Страница 172: ...g the current test time settings Example test_time Response TEST_TIME 0 02 00 00 pause_state pause resume Pause State Set Command Sets the test state to either pause or resume Arguments pause interrupts the test cycle resume restarts the test cycle Example pause_state pause Response NONE Note See test_state command pause_state Pause State Query Command Returns the current status of the test cycle ...

Страница 173: ...DS3 Framing Format Argument m13 M1 3 28 DS1 channels multiplexed into a DS3 signal cbit C Bit Parity Analysis of the DS3 signal unframed Used to analyze the unframed DS3 payloads Example rx_ds3_frm cbit Response NONE rx_ds3_frm Rx DS3 Framing Format Query Command Returns a character string indicating the current receiver DS3 Framing Format Example rx_ds3_frm Response RX_DS3_FRM CBIT Note M1 3 m13 ...

Страница 174: ...sponse NONE Note The Stress Test only functions in the DSX 1 mode to run use quick_setup 4 See tx_stress Transmitter Stress Test Set Command rx_stress Receiver Stress Test Query Command Returns a character string indicating the selected receiver Stress Test Pattern Example rx_stress Response RX_STRESS WORD_324 Note The Stress Test only functions in the DSX 1 mode See rx_stress Receiver Stress Test...

Страница 175: ...215 1 Pseudo Random Bit Stream qrw Quasi Random Word word 24 Bit Word Pattern auto configuration Example rx_vt_patt prbs_23 Response NONE Note This Pattern will be use to analyze the VT1 5 Payload DS 1 rx_vt_patt Receiver VT Pattern Query Command Returns a character string indicating the selected receiver VT Frame Format Example rx_vt_patt Response RX_VT_PATT PRBS_23 Note For Arguments see rx_vt_p...

Страница 176: ...raming Format Query Command Returns a character string indicating the current transmitter DS3 Framing Format Example tx_ds3_frm Response TX_DS3_FRM CBIT Note M1 3 m13 C Bit or Unframed DS3 Frames can be analyzed tx_ds3_pat prbs_15 prbs_23 word Tx DS3 Pattern Set Command Sets the transmitter to the selected DS3 Test Pattern Argument prbs_15 Inverted PRBS Pattern 215 1 prbs_23 Inverted PRBS Pattern ...

Страница 177: ...Transmitter Stress Test Query Command Returns a character string indicating the selected transmitter Stress Test Pattern Example tx_stress Response TX_STRESS WORD_324 Note The Stress Test only functions in the DSX 1 mode See rx_stress Receiver Stress Test Set Command tx_vt_chan n Transmitter VT Channel Select Command Selects the VT1 5 Channel Number that will contain the user specified DS 1 Payloa...

Страница 178: ..._vt_mode single Response NONE tx_vt_mode Transmitter VT Mode Set Command Returns a character string indicating the selected VT1 5 Channel Mode Example tx_vt_mode Response TX_VT_MODE SINGLE Note For Arguments see tx_vt_mode Tx VT Mode Set Command tx_vt_patt prbs_23 prbs_15 qrw word Tx VT Pattern Set Command Sets the transmitter DS 1 Pattern Argument prbs_23 223 1 Pseudo Random Bit Stream prbs_15 21...

Страница 179: ...shows the 24 bit DS 1 hexadecimal word AA00FF being inserted vt_word VT 24 Bit Word Query Command Returns a character string indicating the 24 bit Word that was previously set Argument All three hexadecimal characters must be submitted at the same time Example vt_word Response VT_WORD HAA H00 HFF Note The Example shows the 24 bit DS 1 hexadecimal word AA00FF that had been set Artisan Technology Gr...

Страница 180: ...value time 20 ms 15 68 seconds The burst will return to the STOP state after completing the cycle See the burst_state command Use of any other transmit SPE pointer commands must be avoided while this command is being executed The STSn is selected using the tx_sts_chan command rx_pos_pj Receiver SPE PJ Query Command Returns a character string indicating the number of positive SPE pointer adjustment...

Страница 181: ...sponse NONE Note See the tx_spe_ndf command tx_ptr_ndf Transmitter STS NDF Setup Query Command Returns a character string indicating the New Data Flag value associated with the tx_ptr_ndf Set Command that will become the STS NDF value when the tx_spe_ndf command is executed Example tx_ptr_ndf Response TX_PTR_NDF 500 Note There is one NDF for each STS 1 Channel received in the SONET signal tx_spe_n...

Страница 182: ...eceiver VT Value Query Command Returns a character string indicating the value of the VT Pointer in the selected VT1 5 Channel Example rx_vt_pntr Response RX_VT_PNTR 522 vt_ptr_ndf n Transmitter VT NDF Setup Command Sets the value of the New Data Flag that will become the active transmit VT pointer value when the next tx_vt_ndf command is executed Example vt_ptr_ndf n n a decimal number from 0 to ...

Страница 183: ...neg decrements the value Example tx_vt_sing pos Response NONE The value of the pointer is increased or decreased by 1 each time the command is executed vt_pos_pj Receiver VT PJ Query Command Returns a character string indicating the number of positive VT1 5 pointer adjustments counted during the test cycle Example vt_pos_pj Response VT_POS_PJ 122 Note VT Pointer adjustments are counted on the curr...

Страница 184: ...alid TOH Section and Line overhead bytes 9 are valid POH Path Overhead bytes And 4 are valid VT Virtual Tributary overhead bytes Table 7 1 Byte Mnemonics TOH Section Sec and Line Overhead Bytes POH Bytes VT Bytes Sec A1 A2 C1 J1 V1 Sec B1 E1 F1 B3 V2 Sec D1 D2 D3 C2 V3 Line H1 H2 H3 G1 V4 Line B2 K1 K2 F2 Line D4 D5 D6 H4 Line D7 D8 D9 Z3 Line D10 D11 D12 Z4 Line S1 Z2 E2 Z5 Example rx_oh_all Resp...

Страница 185: ...ributary overhead bytes Whereas the argument n is the corresponding offset value for the byte mnemonic using the format byte mnemonic offset value listed in Table 7 2 Table 7 2 Byte Mnemonic and Offset TOH Section Sec and Line Overhead Bytes POH Bytes VT Bytes Sec A1 00 A2 01 C1 02 J1 03 V1 36 Sec B1 04 E1 05 F1 06 B3 07 V2 37 Sec D1 08 D2 09 D3 10 C2 11 V3 38 Line H1 12 H2 13 H3 14 G1 15 V4 39 Li...

Страница 186: ...nse B1_ES 42 Note Errored seconds are for the STS n Section BIP 8 Code Violations counted b1_ses B1 Severely Errored Seconds Query Command Returns the number of severely errored seconds counted in the received SONET signal Example b1_ses Response B1_SES 22 Note Errored seconds are for the STS n Section BIP 8 Code Violations counted b2_ber B2 Error Rate Query Command Returns the rate of STS n Line ...

Страница 187: ...as a negative exponent b3_err B3 Error Count Query Command Returns the number of STS n Path BIP 8 Code Violations counted in the received SONET signal Example b3_err Response B3_ERR 5280 b3_es B3 Errored Seconds Query Command Returns the number of errored seconds counted in the received SONET signal Example b3_es Response B3_ES 9477 Note Errored seconds are for the STS n Path BIP 8 Code Violations...

Страница 188: ...te is returned as a negative exponent ds_fram_err DS1 DS3 Frame Bit Error Count Query Command Returns the number of Frame Bit errors counted in the selected DS1 or DS3 signal Example ds_fram_err Response DS_FRAM_ERR 12765 ds1_crc6_err DS1 CRC 6 Parity Error Query Command Returns the number of CRC 6 Parity Errors counted in the selected DS1 or DS3 signal Example ds1_crc6_err Response DS1_CRC6_ERR 4...

Страница 189: ... C Bit and M Bit Parity Errors calculated in the selected DS3 signal Example ds3_par_rate Response DS3_PAR_RATE 7 8E 7 Note The rate is returned as a negative exponent ds3_par_ses DS3 Parity Severely Errored Seconds Query Command Returns the number of C Bit and M Bit Parity severely errored seconds counted in the selected DS3 signal Example ds3_par_ses Response DS3_PAR_SES 8 elap_time Elapsed Test...

Страница 190: ... Command Returns the number of Test Pattern Bit errors counted in the selected STS 12c payload Example s12c_bit_err Response S12C_BIT_ERR 813 s12c_bit_rate STS 12c Bit Error Rate Query Command Returns the rate of Test Pattern Bit errors calculated in the selected STS 12c payload Example s12c_bit_rate Response S12C_BIT_RATE 4 1E 9 Note The rate is returned as a negative exponent sts_febe_err FEBE T...

Страница 191: ...is available HIST History Indicates that the LED is off and historical data is available CUR Current Indicates that the LED is on ds_crc DS1 CRC Query Command Returns the current state of the PAYLOAD DS1 DS3 CRC indicator Clear History or Current Example ds_crc Response DS_CRC HIST Note CLEAR Indicates that the LED is off and no history is available HIST History Indicates that the LED is off and h...

Страница 192: ...or Clear History or Current Example ds3_bit_sta Response DS3_BIT_STA CUR Note CLEAR Indicates that the LED is off and no history is available HIST History Indicates that the LED is off and historical data is available CUR Current Indicates that the LED is on ds3_idle DS3 IDLE Indicator Query Command Returns the current state of the PAYLOAD DS1 DS3 DS3 IDLE indicator Clear History or Current Exampl...

Страница 193: ...eceiver front panel indicators Clear History or Current Example led_stat Response LED_STAT HIST Note CLEAR Indicates that all LEDs are off and no history for any is available HIST History Indicates that all LEDs are off and some historical data is available CUR Current Indicates that some LEDs are on line_ais Line AIS Query Command Returns the current state of the LINE AIS indicator Clear History ...

Страница 194: ... Clear History or Current Example path_ais Response PATH_AIS CLEAR Note CLEAR Indicates that the LED is off and no history is available HIST History Indicates that the LED is off and historical data is available CUR Current Indicates that the LED is on path_b3 Path B3 Query Command Returns the current state of the Path B3 indicator Clear History or Current Example path_b3 Response PATH_B3 HIST Not...

Страница 195: ...r Clear History or Current Example sect_b1 Response SECT_B1 CUR Note CLEAR Indicates that the LED is off and no history is available HIST History Indicates that the LED is off and historical data is available CUR Current Indicates that the LED is on sect_lof Section LOF Query Command Returns the current state of the Section LOF Indicator Clear History or Current Example sect_lof Response SECT_LOF ...

Страница 196: ...ry or Current Example vt_bip2_stat Response VT_BIP2_STAT HIST Note CLEAR Indicates that the LED is off and no history is available HIST History Indicates that the LED is off and historical data is available CUR Current Indicates that the LED is on vt_febe VT Path FEBE Query Command Returns the current state of the VT Path FEBE Indicator Clear History or Current Example vt_febe Response VT_FEBE CUR...

Страница 197: ...nverts one bit of the b3 byte bip2_error VT BIP 2 Parity Error Set Command Generates a single VT BIP 2 code violation VT1 5 Bit Interval Parity error Example bip2_error Response NONE Note Inverts one of the two parity bits in the V5 byte bip2_rate n VT BIP 2 Parity Error Set Command Generates the VT1 5 Bit Interval Parity error rate Example bip2_rate n Response NONE Note The error rate is a negati...

Страница 198: ...es Zero substitution codes are NOT impacted Bit errors are NOT caused ds1_bit_rate n DS1 Bit Error Rate Set Command Sets the DS1 VT1 5 Bit Error Rate Example ds1_bit_rate n Response NONE Note The error rate is a negative exponent from 1 0E 9 to 1 5E 3 ds1_bit _rate DS1 Bit Error Rate Query Command Returns a character string indicating the current value of the DS1 VT1 5 Bit Error Rate Example ds1_b...

Страница 199: ...0E 9 to 1 5E 3 ds3_bit _rate DS3 Bit Error Rate Query Command Returns a character string indicating the current value of the DS3 Bit Error Rate Example ds3_bit_rate Response DS3_BIT_RATE 3 2E 7 Note The error rate is displayed as a negative exponent from 1 0E 9 to 1 5E 3 ds3_bit_random on off DS3 Random Error Rate Set Command Randomly generates the DS3 error rate Argument on Turns the DS3 error ra...

Страница 200: ...e generator off Example ds3_bpv_random on Response NONE Note The error rate is a negative exponent from 1 0E 9 to 1 5E 3 ds3_bpv_random DS3 BPV Random Error Query Command Returns the state of the DS3 BPV error rate random generator Example ds3_bpv_random Response DS3_BPV_RANDOM ON ds3_error DS3 Bit Error Set Command Generates a single DS3 bit error Example ds3_error Response NONE Notes This error ...

Страница 201: ...IT for DS3 bit error menu DS3_PAR for DS3 parity error menu DSX3_BPV for DSX3 bipolar violation error menu CRC6 for CRC 6 error menu DS1_BIT for DS1 bit error menu S3C_BIT for 3C bit error menu S12C_BIT for 12C bit error menu DS1_SUM for DS1 errors summary menu DS3_SUM for DS3 errors summary menu ELAP_TIME for elapsed time menu Note The remote command will change the menu only when the new menu is...

Страница 202: ...r STSX bipolar violation error menu BIP2 for BIP 2 error menu DS1_SUM for DS1 errors summary menu ELAP_TIME for elapsed time menu Note The remote command will change the menu only when the new menu is valid for the current configuration If the menu is not valid an execution error will result There is no space allowed between the two parameters The command and parameters can be either written in ei...

Страница 203: ... command result in STS n section line and path BIP 8 code violations because a single bit error is located at random anywhere in the SPE after the section line and path parity has been calculated tx_j1_fill h nn Transmit J1 Trace Set Command Sets the value of the J1 Trace message Fills all 64 bytes with the hexadecimal characters nn Example tx_j1_fill h45 Response NONE Note Any two hexadecimal cha...

Страница 204: ...2 V3 V4 The H code after the comma is corresponding byte value in non decimal numeric hexadecimal tx_oh_def TX Overhead Default Set Command Returns the STS n Overhead Bytes TOH and POH to their factory default settings Example tx_oh_def Response NONE tx_oh_edit on enter esc TX Overhead Edit Command This command is used to start and end with or without saving the changes the TOH editing session Arg...

Страница 205: ...und sign and the letter h upper or lower case It can be any number from 00 to FF in hexadecimal tx_oh_byte s Transmit Overhead Byte Query Command Returns the current hexadecimal value b of the overhead byte s Example tx_oh_byte d3 Response TX_OH_BYTE D3 H00 Note s the byte mnemonic from A1 to Z5 shown in Table 7 4 b the byte content in hexadecimal format such as H22 The byte mnemonic must be enclo...

Страница 206: ... H3 14 G1 15 V4 39 Line B2 16 K1 17 K2 18 F2 19 Line D4 20 D5 21 D6 22 H4 23 Line D7 24 D8 25 D9 26 Z3 27 Line D10 28 D11 29 D12 30 Z4 31 Line S1 32 Z2 33 E2 34 Z5 35 tx_oh_offset n Transmit Overhead Offset Query Command Returns the overhead byte value b associated with offset n Example tx_oh_offset 26 Response TX_OH_OFFSET 26 H00 Note n the byte mnemonic from A1 to Z5 shown in Table 7 5 b the byt...

Страница 207: ...ecimal 0 0 1 VT SPE Equipped Payload Not Specified 02 hex 2 decimal 0 1 0 VT SPE Equipped Unassigned 04 hex 4 decimal 0 1 1 VT SPE Equipped Unassigned 06 hex 6 decimal 1 0 0 VT SPE Equipped Unassigned 08 hex 8 decimal 1 0 1 VT SPE Equipped Unassigned 0A hex 10 decimal 1 1 0 VT SPE Equipped Unassigned 0C hex 12 decimal 1 1 1 Alarm Indication Signal 0E hex 14 decimal bit 8 Yellow Signal 01 hex 1 dec...

Страница 208: ...and alm_burst Alarm Burst Query Command Returns a character string indicating the selected alarm burst condition Example alm_burst Response ALM_ENAB alarm mode Note For a list of burst alarms see Alarm Burst Set Command alm_clear Alarm Clear Command Turns off all alarm conditions in progress and disables all continuous alarm conditions Example alm_clear Response NONE Note This command has the same...

Страница 209: ...rf on off Alarm FERF Set Command Enables or disables the FERF Far End Receive Failure alarm condition to be generated Arguments on enables the condition off disables the condition Example alm_ferf on Response NONE Note Use the alm_enab command to executed the enabled alarm condition alm_ferf Alarm FERF Query Command Returns the FERF Far End Receive Failure alarm condition as on enabled or off disa...

Страница 210: ...e the Alarm LOF Set Command alm_oorp on off Alarm OORP Set Command Enables or disables the OORP Out Of Range Pointer alarm condition to be generated Arguments on enables the condition off disables the condition Example alm_oorp on Response NONE Note Use the alm_enab command to executed the enabled alarm condition alm_oorp Alarm OORP Query Command Returns the OORP Out Of Range Pointer alarm conditi...

Страница 211: ...e See the Alarm STS n LOP Set Command alm_sts_yel on off Alarm STS n Path YEL Set Command Enables or disables the STS n Path Yellow alarm condition to be generated Arguments on enables the condition off disables the condition Example alm_sts_yel on Response NONE Note Use the alm_enab command to executed the enabled alarm condition alm_sts_yel Alarm STS n Path YEL Query Command Returns the STS n Pa...

Страница 212: ...vt_lop Response ALM_VT_LOP ON Note See the Alarm VT LOP Set Command alm_vt_yel on off Alarm VT YEL Set Command Enables or disables the VT Yellow alarm condition to be generated Arguments on enables the condition off disables the condition Example alm_vt_yel on Response NONE Note Use the alm_enab command to executed the enabled alarm condition alm_vt_yel Alarm VT YEL Query Command Returns the VT Ye...

Страница 213: ... YEL Example ds3_alarms Response DS3_ALARMS XBIT Note see the DS3 Alarm Set Command ds3_pth_bur n DS3 Path Burst Alarm Set Command Sets the DS3 Alarm Burst duration Example ds3_pth_bur n n a decimal number from 1 to 255 frames Response NONE Note See the ds3_pth_tri command ds3_pth_bur DS3 Path Burst Alarm Query Command Returns a character string indicating the current value of the DS3 Alarm Burst ...

Страница 214: ... Bit parity errors sef Enables 4 out of 16 F bit errors on each DS1 frame xbit Sets the two X bits in each M Frame to their Alarm Condition 00 febe Enable a Far End Block Error C Bit format only Example ds3_alarms xbit Response NONE Note See the ds3_pth_tri command ds3_pth_ty DS3 Path Alarm Burst Query Command Returns a character string indication the current state of the DS1 Alarms AIS and YEL Ex...

Страница 215: ...mmand Returns the LOS time duration in microseconds Example los_time Response LOS_TIME n n a decimal quantity from 1 to 127 microseconds los_secs n m Sets the timed LOS event to a duration from 1 0 to 9 9 seconds Example los_secs n m n m a decimal number from 1 0 to 9 9 Response NONE los_tm_enab Enables the LOS event for the amount of time specified by los_secs command Example los_tm_enab Response...

Страница 216: ...face RS 232 C port All remote commands sent to the ST2400 through the RS 232 C port will be passed on to the ST112 for processing The ST112 VT100 menus will include the ST2400 2 4 Gb s SDH SONET Test Set menus When the link is already established the combined Dual mode off command will be handled by the ST112 SONET Transmission Test Set which will terminate the connection between the two systems c...

Страница 217: ...Remote Commands 7 74 ST112 SONET Transmission Test Set Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 218: ...Appendix A Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 219: ...ted VT1 5 pattern If a single channel is selected then the remaining channels are filled with a unique SF 24 bit fixed word pattern Signal Level at Transmit Output Output Amplitude DSX 1 3 0 0 3 volts peak DSX 3 0 5 0 2 volts peak STSX 1 0 5 0 2 volts peak STS 1 ECL Pulse Shape at Transmit Output DSX 1 Meets TR TSY 000499 Issue 1 December 1987 DSX 3 Meets TR TSY 000499 Issue 3 December 1989 See No...

Страница 220: ...e for each bit error detected STS 3c One STS 3c byte wide NRZ pulse for one or more bit error s detected within each byte STS 12c One STS 12c four byte wide NRZ pulse for one or more bit error s detected within any four continguous bytes Note For NRZ pulses the pulse width will depend on the number of consecutive bit errors i e one bit error results in a single pulse two consecutive bit errors res...

Страница 221: ...om Error Rate STSX 1 BPV Error Rate Channel Bit Error single bit error injected into selected channel of an STS N signal Error Rate Range and Resolution 1x10 3 to 1x10 9 range varies based on selected error type with 0 1 resolution SONET Alarms Continuous EF Errored Frame AIS Alarm Indication Signal for Line Line AIS Path Path AIS Virtual Tributary VT Path AIS RDI Remote Defect Indication for Line...

Страница 222: ... flat loss below DSX 3 STSX 1 0 25 Vpk min to 0 6 Vpk max STSX 1 Monitor 20 dB of flat loss below STSX 1 Signal Equalization DSX 3 STSX 1 Cross connect equalization for 450 feet of AT T 728A cable Impedance Connector DSX 1 Balanced 100 ohm WECO310 jack DSX 3 STSX 1 Unbalanced 75 ohm BNC Rear Panel Input Input for an external STS 1 or STS 3 clock source Rates accuracy listed under the External Cloc...

Страница 223: ...rom the Orderwire Handset connector into the Line express orderwire channel Drop data from the Line DCC out to the DDC connector Drop voice from the Line express orderwire channel to the Orderwire Handset connector K1 and K2 APS Set the APS Bytes K1 and K2 to any code defined in ANSI T1 105A Selectable by text description Path Overhead Access Set Path Overhead bytes to any value from hex 00 to FF ...

Страница 224: ...rror Count Pattern Parity DS3 Second and ratio ES SES BER Total Error Count Pattern CRC 6 DS1 Second and ratio ES SES BER Total Error Count Summary Total error counts For DS3 Frame Parity and Bit For DS1 Frame CRC and BIT Elapsed Time Displayed in hours minutes seconds LEDs SECTION Status Indicators LOS LOF OOF B1 LINE Status Indicators AIS LOP RDI B2 PATH Status Indicators AIS RDI FEBE B3 VT PATH...

Страница 225: ...d DCE V 11 compatible Orderwire Add Drop Interface This connector provides the interface to an external handset i e telephone Add Drop E1 E2 Connector 4 wire handset jack Computer Interface GPIB Standard IEEE 488 socket RS 232 C DB 25 pin female connector used for terminals or serial printer Parallel Printer Connector DB 25 pin female connector Artisan Technology Group Quality Instrumentation Guar...

Страница 226: ... SC Optical Connectors are orderable options Payload Mappings STS 3c Standards Compliance Meets the requirements of ANSI T1 105A Section 8 and Bellcore GR 253 CORE Receive Input Optical Input Data Rates OC 1 51 84 Mb s OC 3 155 52 Mb s Maximum Input Power 14 dBm Operating Wavelength 1310 nm and 1550 nm 1100 nm to 1570 nm operating range Signal Sensitivity 30 dBm for BER 10 10 Connectors FC PC stan...

Страница 227: ... Compliance Meets the requirements of ANSI T1 105A Section 8 and Bellcore GR 253 CORE Receive Input Optical Input Data Rates OC 1 51 84 Mb s OC 3 155 52 Mb s OC 12 622 08 Mb s Maximum Input Power 8 dBm Operating Wavelength 1310 nm and 1550 nm 1100 nm to 1570 nm operating range Signal Sensitivity 28 dBm for BER 10 10 Note Typically exceeds 30 dBm at dBm for BER 10 10 at 622 MHz Connectors FC PC sta...

Страница 228: ...able options Payload Mappings STS 12c Standards Compliance Meets the requirements of ANSI T1 105A Section 8 and Bellcore GR 253 CORE Receive Input Optical Input Data Rates OC 1 51 84 Mb s OC 3 155 52 Mb s OC 12 622 08 Mb s Maximum Input Power 8 dBm Operating Wavelength 1310 nm and 1550 nm 1100 nm to 1570 nm operating range Signal Sensitivity 28 dBm for BER 10 10 Note Typically exceeds 30 dBm at dB...

Страница 229: ... 0 to 95 relative humidity Table A 6 Physical Characteristics Characteristic Description Dimensions Height 152 mm 6 in Width 366 mm 14 4 in Depth 419 mm 16 5 in Weight Net Approximately 10 kg 22 lb Safety Designed to meet UL CSA safety requirements Power Requirements Line Voltage Line Frequency 110 90 to 130 VAC 47 Hz to 63 Hz Maximum power consumption is 250 Watts Artisan Technology Group Quality...

Страница 230: ...Appendix B Incoming Inspection Test Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 231: ... options Note See last section of instructions for contents General Functionality Verification This section of the User Manual tests the functionality of the unit The procedure consists of eleven sections in which the functionality of the unit is verified Note The procedure assumes you are proceeding in sequential order Before beginning the procedure you must Ram Corrupt the unit to ensure that yo...

Страница 232: ...Reconnect the 75 ohm cable to one of the output connectors on the transmitter side of the front panel Note that the error lights are no longer lit on the receiver side 8 On the receiver side of the front panel press and hold down HISTORY VIEW Observe that certain red LEDs on the receiver side of the front panel are now lit HISTORY VIEW reflects the last errors which occured Note HISTORY VIEW refle...

Страница 233: ...ve in the receiver s section of the display that SPE already equals three These resulted from the three B3 errors injected in Step 8 11 On the front panel press ENTER three times 12 On the receiver s STATUS section of the front panel observe that the red LEDs for B1 B2 and B3 flash each time the ENTER key is pressed Also on the receiver section of the display observe that SPE now equals six 13 On ...

Страница 234: ...rectly Leave everything set up as it was in the last section There are thirteen steps in this section of the procedure 1 On the transmitter side of the front panel press POINTER 2 Using the LEFT RIGHT cursors select PJ and then press ENTER Under the SPE section of the POINTER heading in the receiver s STATUS section observe that the green LED for PJ flashes once On the display observe that TX PTR ...

Страница 235: ...o not appear in the OVHD menu The cursor flashes underneath the position of the current selection 3 Using the INC DEC keys and the LEFT RIGHT cursors change D7 to AA and then press ENTER 4 Using the LEFT RIGHT cursors select D8 5 Using the INC DEC keys and the LEFT RIGHT cursors change D8 to 11 and then press ENTER 6 Using the LEFT RIGHT cursors select D9 7 Using the INC DEC keys and the LEFT RIGH...

Страница 236: ...s lit then the condition is still occuring A Under the SECTION heading the red LEDs for LOF OOF and B1 remain lit B Under the LINE heading the red LEDs for AIS LOP RDI and B2 remain lit The red LEDs for AIS LOP and RDI may flash C Under the PATH heading the red LEDs for RDI FEBE and B3 remain lit The red LED for RDI may flash D Under the PAYLOAD DS1 DS3 heading the red LEDs for LOF PAR SYNC and BI...

Страница 237: ...r the PAYLOAD DS1 DS3 heading the red LEDs for LOF PAR SYNC BIT and ONES remain lit 19 Using the LEFT RIGHT cursors select OFF and then press ENTER 20 Press RUN STOP twice to clear all errors 21 On the transmitter side of the front panel press ALARM until the display shows the Path RDI Yellow menu 22 Using the LEFT RIGHT cursors select CONT and then press ENTER 23 On the receiver s STATUS section ...

Страница 238: ...errors 6 The transmitter and receiver sides should now be linked error free 7 On the transmitter side of the front panel press ALARM until the display shows the VT PATH AIS menu 8 Using the LEFT RIGHT cursors select CONT and then press ENTER 9 In the receiver s STATUS section of the front panel under the VT PATH heading observe that the red LEDs for AIS RDI FEBE and BIP 2 remain lit Under the PAYL...

Страница 239: ...S1 connectors on the transmitter side of the front panel 2 On the front panel press SETUP until the display shows the Quick DSX Set Up menu 3 Using the LEFT RIGHT cursors select DSX1 and then press ENTER 4 Press RUN STOP twice to clear all errors 5 The transmitter and receiver sides should now be linked error free 6 On the transmitter side of the front panel under the DS3 VT1 5 STS3C 12C heading p...

Страница 240: ... In the receiver s STATUS section of the front panel under the PAYLOAD DS1 DS3 heading observe that the red LEDs for PAR and BIT flashed three times Also in the receiver section of the display observe that DS3 equals three 8 On the receiver side of the front panel under the DS3 VT1 5 STS3C 12C heading press ERROR until the lefthand side of the display shows DS3 on the top line and PAR on the botto...

Страница 241: ...the front panel under the PAYLOAD DS1 DS3 heading observe that the red LEDs for IDLE SYNC and BIT remain lit 29 Using the LEFT RIGHT cursors select OFF and then press ENTER 30 Press RUN STOP twice to clear all errors OC1 Quick Set Up This section of the procedure verifies that the Optical Carrier Level 1 OC1 is functioning properly The quick set up places the unit into a default mode which selects...

Страница 242: ...EBE should equal zero The values of B1 B2 and B3 should all equal three 12 Press RUN STOP twice to clear all errors 13 On the transmitter side of the front panel press POINTER 14 Using the LEFT RIGHT cursors select NDF and then press ENTER 15 On the receiver s STATUS section of the front panel under the SPE section of the POINTER heading observe that the yellow LED for NDF flashes once 16 Using th...

Страница 243: ...ow be linked error free 5 On the transmitter side of the front panel press ALARM until the display shows the Errored Frame menu 6 Using the LEFT RIGHT cursors select CONT and then press ENTER 7 On the receiver s STATUS section of the front panel observe that the following error lights appear A Under the SECTION heading the red LEDs for LOF OOF and B1 remain lit B Under the LINE heading the red LED...

Страница 244: ...connectors on the front panel of the unit The last section of the procedure provides an equipment list and simple instructions on how to clean the optical connectors Leave everything set up as it was in the last section There are seventeen steps in this section of the procedure 1 On the front panel press SETUP until the display shows the SONET Quickset menu 2 Using the INC DEC keys select OC12 Usi...

Страница 245: ...ed LED for RDI may flash D Under the PAYLOAD DS1 DS3 heading the red LEDs for LOF PAR SYNC and BIT remain lit E Under the SPE section of the POINTER heading the yellow LED for NDF remains lit and the green LEDs for PJ and PJ remain lit 14 Using the LEFT RIGHT cursors select OFF and then press ENTER 15 Press RUN STOP twice to clear all errors You have now successfully verified that the unit is func...

Страница 246: ...can the cleaning process must be performed again 7 Do not reuse the swab Dispose of it immediately Cleaning Procedure for Unconnected Fiber Cables Note This procedure should be performed each time the fiber cables are to be used to prevent scraching the fiber and ultimately destroying the cables 1 Hold the fiber optic connector to be cleaned in your hand 2 Try not to put unnecessary strain on the ...

Страница 247: ...Incoming Inspection Test B 18 ST112 SONET Transmission Test Set Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 248: ...Appendix C Calibration Verification Test Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 249: ...st be a single mode cable and have connectors matching those on the unit under test required if unit has optical options an in line 5db optical attenuator required if unit has optical options m m bnc 75 ohms coaxial cable f m bnc 75 ohms thru terminator male bnc 75 ohms to ground terminator f f m bnc T adaptor DS1 WECO 310 compatible patch cord f m bnc AC coupler adaptor suggested Tektronix Blocki...

Страница 250: ...oaxial connectors with male bnc connectors on the other end is needed one of the cables is connected to the Tip and the other is connected to the Ring There are nine steps in this section of the procedure Note Only the DS1 sections of the procedure require the use of the special cable 1 Connect the bnc T adaptor to the frequency counter and terminate on end of it with a 50 ohms to ground terminato...

Страница 251: ...8 9 On the front panel press ENTER 10 Invert one of the scope channels and then add them This gives the balanced signal needed 11 Setting the signal around the center of the scope measure the amplitude of the signal Note The amplitude of the signal is the peak to peak value The amplitude of the DS1 signal should be 6 Vpp 400mV 12 Compare the signal on the screen to the standard DS1 mask Only the s...

Страница 252: ... of the system clock The frequency shown on the counter should be 22 368 Mhz 22 Hz which is equal to the half rate clock 13 On the transmitter side of the front panel under the DS3 VT1 5 STS3c 12c heading press PATTERN until the display shows the TX Pattern DS3 PAYLOAD menu 14 Using the LEFT RIGHT cursors select WORD 15 Using the INC DEC keys change the word to AA and then press ENTER 16 Remove th...

Страница 253: ...ncy shown on the counter should be 51 8400 Mhz 51 Hz 11 Remove all cables and terminators from the unit and scope Note For further information regarding the standard masks for DS1 DS3 and STS1 refer to the ANSI technical standard T1 102 The masks supported by the CSA803A scope are direct representations of these standard masks OC1 Signal Mask Verification This section of the procedure verifies tha...

Страница 254: ...n the scope screen to the standard OC3 mask Only the scope s vertical adjustment may be moved in order to make the signal fit within the mask Note The CSA803A oscilloscope contains the standard template in memory 5 Set the vertical adjustment back to the normal position OC12 Signal Mask Verification This section of the procedure verifies that the output signal matches the standard OC12 mask The CS...

Страница 255: ... You have now successfully completed the verification of the calibration of the ST112 Transceiver If you had any problems with the unit while performing the tests repeat the procedure paying careful attention to the set up of the units and the directions given If the unit still has a problem please call Tektronix Customer Sales and Support Center CSSC at 1 800 835 9433 x2400 or 503 627 2400 for as...

Страница 256: ...il it stops 4 Gently spin the swab clockwise and the counter clockwise 5 Remove the swab 6 Using the clean air spray spray the air into the barrel opening for at least three seconds Note Hold the can in an upright position DO NOT tilt invert or shake the can during use If a mist appears from the can the cleaning process must be performed again 7 Do not reuse the swab Dispose of it immediately Clea...

Страница 257: ... at least three seconds Note Hold the can in an upright position DO NOT tilt invert or shake the can during use If a mist appears from the can the cleaning process must be performed again 6 Dispose of the used Kimwipe immediately Do not reuse it Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 258: ...e register SRER 6 13 standard event status register SESR 6 11 status and event reporting 6 10 status byte register SBR 6 12 GPIB Port Setup 3 6 I Indicators History 2 15 Payload 2 14 Pointer 2 14 Remote REM LLO 2 16 Inputs Rear Panel 2 8 Rear Panel Receiver 2 10 Interlock AC Power 2 18 K Key Pause Resume 2 16 View History 2 15 L LCD Display 2 5 LCD Displays APS 3 8 3 9 DCC Orderwire 3 12 Error 3 1...

Страница 259: ...rt Settings 4 2 Store Recall 3 4 T Terminal Setup 4 3 Test Time 3 5 Transmitter Connectors 2 7 V VFP 4 2 VFP Display Current Configuration 4 4 4 6 Quick Setup 4 6 Setup 4 4 Time Setup 4 7 VFP Displays APS 4 18 DSX1 Line Code Setup 4 7 Print Report Setup 4 10 Receiver Error Summary 4 20 Receiver Setup 4 11 Store and Recall Test Setups 4 8 Timed Test Setup 4 9 VFP Displays J1 Trace Message 4 31 VFP ...

Страница 260: ...Channel Configuration 4 32 View History Key 2 15 Virtual Front Panel 4 2 VT Channel Mapping 3 10 VT1 5 Structures 4 14 4 33 VT 100 terminal 4 2 VT 100 terminal emulation 4 2 W Warning and caution labels xi Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Страница 261: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Отзывы:

Нет отзывов

Бренды по названию

Популярные бренды

Загрузить еще бренды