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2-9

Using the Agilent 83434A

BER Performance Verification

BER Performance Verification

This procedure verifies BER performance of the of the Agilent 83434A light-
wave receiver with the Agilent 83433A and 71612B.

The following equipment is used:

• Agilent 83434A lightwave receiver
• Agilent 83433A lightwave transmitter
• Agilent 71612B Bit Error Rate Tester
• Optical attenuator
• Optical multimeter

Note

Before starting, be sure to clean all connectors and optical interfaces using the proce-
dures describe in

“Fiber-Optic Connectors” on page 3-8

.

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Summary of Contents for 83434A

Page 1: ...Agilent 83434A Lightwave Receiver User s Guide...

Page 2: ...esulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfac ing unauthorized modifica tion or misuse operation outside of the environmental specifications for the pro...

Page 3: ...WAR N I N G This is a Safety Class 1 product provided with a protective earthing ground incorporated in the power cord The mains plug shall only be inserted in a socket outlet provided with a protecti...

Page 4: ...correct as described in Chapter 4 Specifications and Regulatory Information Damage to the equipment could result C AUT IO N This instrument has autoranging line voltage input Be sure the supply voltag...

Page 5: ...least 1E 10 The recovered clock can be used as a trigger input for the Agilent Infiniium DCA to allow optical eye diagram measurements when no external clock sig nal is available for triggering The re...

Page 6: ......

Page 7: ...eck 2 4 Agilent 83434A Connection to a Bit Error Ratio Test Set 2 6 BER Performance Verification 2 9 3 Reference Accessories Supplied 3 2 Options 3 3 Replacement Parts 3 4 Front Panel Fiber Optic Adap...

Page 8: ...Contents 2 Contents...

Page 9: ...ct the Shipment 1 3 Step 2 Check the Fuse 1 5 Step 3 Connect the Line Power Cable 1 6 Step 4 Turn on the Agilent 83434A 1 8 Step 5 Avoid costly repairs 1 9 Step 6 Learn more about our products 1 10 Ge...

Page 10: ...to Chapter 3 Reference for the following additional information Tips on avoiding costly repairs by proper optical connection cleaning techniques Lists of available accessories and power cords Instruct...

Page 11: ...strument Ser vice on page 3 18 for the description and part numbers of the packaging materials Refer to Options on page 3 3 for the accessories shipped with the lightwave receiver If the shipping mate...

Page 12: ...osts Agi lent service personnel have access to complete records of design changes to each type of equipment based on the equipment s serial number Whenever you contact Agilent about your lightwave rec...

Page 13: ...open the fuse holder door 4 The fuse is housed in a small container Insert the tip of a screwdriver on the side of the container and gently pull outward to remove the container A spare fuse is stored...

Page 14: ...re to ensure adequate earth grounding by not using this cord may cause instrument damage C AUT IO N Do not connect ac power until you have verified the line voltage is correct as described in the foll...

Page 15: ...available to connect the Agilent 83434A to ac power outlets unique to specific geographic areas The cable appropriate for the area to which the Agilent 83434A is originally shipped is included with th...

Page 16: ...E The front panel LINE switch disconnects the mains circuits from the mains supply after the EMC filters and before other parts of the instrument If the Agilent 83434A fails to turn on properly consid...

Page 17: ...dirty or damaged cables and accessories The front panel connectors of the Agilent 83434A are no exception When you use improper cleaning and handling techniques you risk expensive instrument repairs d...

Page 18: ...nt 83434A Step 6 Learn more about our products To learn more about Agilent Technologies products visit our website at http www agilent com If you wish to find out more about your new lightwave receive...

Page 19: ...2 Front Panel Features 2 2 Rear Panel Features 2 3 Quick Confidence Check 2 4 Agilent 83434A Connection to a Bit Error Ratio Test Set 2 6 BER Performance Verification 2 9 Using the Agilent 83434A...

Page 20: ...95328 GHz or 10 66423 GHz option 106 DATA OUT Provides an amplified non retimed signal corresponding to the incoming data stream OPTICAL IN Maximum signal input is 0 dBm damage level input is 7 dBm T...

Page 21: ...2 3 Using the Agilent 83434A Rear Panel Features Rear Panel Features Figure 2 2 The Agilent 83434A rear panel...

Page 22: ...A and let it warm up for 30 minutes 2 Connect the output of the optical source 1300 1600 nm 16 dBm modulated at 9953 28 Mb s or for option 106 10664 23 Mb s to the OPTICAL INPUT of the Agilent 83434A...

Page 23: ...and operating correctly 6 Review the procedure for the test being performed when the problem appeared Are all the settings correct 7 Are the connectors clean Refer to Cleaning Connectors on page 3 15...

Page 24: ...o a Bit Error Ratio Test Set The following procedure describes how to connect the lightwave receiver to a bit error ratio test set BERT Refer to Figure 2 3 on page 2 7 Note Before starting be sure to...

Page 25: ...ave receiver to the clock input connector of the BERT An adapter may be necessary 5 Connect a cable from the DATA OUT connector on the lightwave receiver to the data input connector on the BERT An ada...

Page 26: ...2 8 Using the Agilent 83434A Agilent 83434A Connection to a Bit Error Ratio Test Set 9 Connect the laser source to the fiber optic cable...

Page 27: ...receiver with the Agilent 83433A and 71612B The following equipment is used Agilent 83434A lightwave receiver Agilent 83433A lightwave transmitter Agilent 71612B Bit Error Rate Tester Optical attenuat...

Page 28: ...2 10 Using the Agilent 83434A BER Performance Verification 1 Connect the equipment as shown in Figure 2 4 Figure 2 4 Setup to perform BER performance verification of the 83434A...

Page 29: ...UTPUT Ext AC COUPLED DATA AMPLITUDE 1 0 V PATTERN PRBS 2 31 1 3 Disable WAVELENGTH ADJUST on the 83433A 4 Turn on the 83433A laser 5 Adjust the optical attenuator for a maximum of 0 dBm and a minimum...

Page 30: ...2 12 Using the Agilent 83434A BER Performance Verification...

Page 31: ...Fiber Optic Adapters 3 5 Power Cords 3 7 Fiber Optic Connectors 3 8 Choosing the Right Connector 3 8 Inspecting Connectors 3 11 Cleaning Connectors 3 15 Instrument Service 3 18 Preparing the Instrume...

Page 32: ...ve receiver unless a different option was ordered Refer to Agilent 83434A Options on page 3 3 for a complete list of the available connector interfaces Agilent 83434A Lightwave Receiver User s Guide A...

Page 33: ...input of the lightwave receiver Option 013 DIN connector interface on the optical input of the lightwave receiver Option 014 ST connector interface on the optical input of the lightwave receiver Optio...

Page 34: ...ce Replacement Parts Replacement Parts Table 3 2 Replacement Parts Description Agilent Part Number APC 3 5 F to F connector saver 5061 5311 APC 3 5 50 ohm termination 1810 0118 FC PC connector interfa...

Page 35: ...nt Panel Fiber Optic Adaptes 1 of 2 Front Panel Fiber Optic Adapter Description Agilent Part Number Diamond HMS 10 81000AI FC PCa 81000FI D4 81000GI SC 81000KI DIN 81000SI ST 81000VI Biconic 81000WI D...

Page 36: ...dapters ST connector 1005 0596 SC connector 1005 0597 a The FC PC adapter is the standard adapter supplied with the instrument Table 3 3 Front Panel Fiber Optic Adaptes 2 of 2 Front Panel Fiber Optic...

Page 37: ...nations 125V 8120 1378 8120 1521 8120 1992 Straight NEMA5 15P 90 Straight Medical UL544 90 228 90 228 96 244 Jade Gray Jade Gray Black United States Canada Mexico Philippines Taiwan 250V 8120 2104 812...

Page 38: ...that holds the ferrule in position against another identical ferrule Connectors also vary in the polish curve and concentricity of the core within the cladding Mating one style of cable to another req...

Page 39: ...ompromise between performance reli ability and cost If properly maintained and cleaned this connector can withstand many repeated connections However many instrument specifications require tighter tol...

Page 40: ...ond HMS 10 connector The nickel silver allows an active centering process that permits the glass fiber to be moved to the desired position This process first stakes the soft nickel silver to fix the f...

Page 41: ...r any stray particles or finger oil can have a significant effect on connector performance Where many repeat connections are required use of a connector saver or patch cable is recommended Figure 3 4...

Page 42: ...sible performance when making measurements on a fiber optic system Never use metal or sharp objects to clean a connector and never scrape the connector Avoid matching gel and oils Figure 3 4 Clean pro...

Page 43: ...to a connector gently insert it in as straight a line as possible Tipping and inserting at an angle can scrape material off the inside of the connector or even break the inside sleeve of connectors ma...

Page 44: ...an be used to determine connector degradation A smooth polished fiber end should pro duce a good return loss measurement The quality of the polish establishes the difference between the PC physical co...

Page 45: ...is section provide the proper steps for cleaning fiber optic cables and Agilent Technologies universal adapters The initial cleaning using the alcohol as a solvent gently removes any grit and oil If a...

Page 46: ...cotton swab or lens paper 4 Clean the fiber end with the swab or lens paper Do not scrub during this initial cleaning because grit can be caught in the swab and become a gouging element 5 Immediately...

Page 47: ...u to connect the instrument to different types of fiber optic cables Figure 3 7 Universal adapters 1 Apply isopropyl alcohol to a clean foam swab Cotton swabs can be used as long as no cotton fibers r...

Page 48: ...t will be returned to you as quickly as possible Call this number regardless of where you are located Agilent Technologies Instrument Support Center 1 800 403 0801 After you have initiated service by...

Page 49: ...ith instrument 2 Cover all front or rear panel connectors that were originally covered when you first received the instrument C AUT IO N Cover electrical connectors to protect sensitive components fro...

Page 50: ...the instrument and prevent it from moving in the carton If packing foam is not available the best alternative is S D 240 Air Cap from Sealed Air Corporation Commerce California 90001 Air Cap looks li...

Page 51: ...t Technologies Service Numbers 1 of 2 Austria 01 25125 7171 Belgium 32 2 778 37 71 Brazil 11 7297 8600 China 86 10 6261 3819 Denmark 45 99 12 88 Dominican Republic 809 563 6350 Finland 358 10 855 2360...

Page 52: ...eference Instrument Service Sweden 08 5064 8700 Switzerland 01 735 7200 Taiwan 886 2 2 712 0404 United Kingdom 01 344 366666 United States and Canada 800 403 0801 Agilent Technologies Service Numbers...

Page 53: ...4 Agilent 83434A Specifications and Characteristics 4 3 Regulatory Information 4 6 Declaration of Conformity 4 7 Specifications and Regulatory Information...

Page 54: ...ange 0 C to 45 C and relative humidity 95 non condensing unless otherwise noted All specifications apply after the temperature of the instrument is sta bilized after 30 minutes of continuous operation...

Page 55: ...NS Optical Input Wavelength Optical input powera b c d Return loss Loss of optical input alarm threshold 1300 to 1600 nm 16 to 0 dBm 28 dB minimum 25 to 20 dBm Maximum Safe Input Level Optical input p...

Page 56: ...100 120 220 240 V 10 47 to 63 Hz Weight characteristic 3 4 kg 7 6 lb Dimensions 102mm 4 in height 216 mm 8 5 in width 444 mm 17 5 in depth Agilent System II half width case FRONT PANEL INPUT OUTPUT O...

Page 57: ...ions and Characteristics l Falling clock edge to data transition measured with 2 31 1 PRBS m Integrated phase noise measurement method n 9 940 to 9 960 MHz standard 10624 to 10684 MHz option 106 o Sta...

Page 58: ...4 respectively Notice for Germany Noise Declaration This is to declare that this instrument is in conformance with the German Reg ulation on Noise Declaration for Machines Laermangabe nach der Maschin...

Page 59: ...4 7 Specifications and Regulatory Information Regulatory Information Declaration of Conformity...

Page 60: ...4 8 Specifications and Regulatory Information Regulatory Information...

Page 61: ...er 3 15 connector care 3 8 connector interface front panel 3 2 cotton swabs 3 15 D declaration of conformity 4 7 dust caps 3 16 F fiber optics adapters 3 5 care of 1 9 cleaning connections 3 8 connect...

Page 62: ...service 3 18 S safety i iii laser classification i iii line fuse i iii 1 5 sales and service offices 3 21 serial numbers 1 4 service 3 18 options 2 5 returning for 3 18 shipping procedure 3 19 spare...

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