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Manual Agilent Technologies 83430-90011

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  • Agilent Technologies 83430-90011 - page 1

    A g i l e n t 8 3 430 A L i gh t w a v e T r a n s m i tt e r U s e r ’ s G u i d e ...

  • Agilent Technologies 83430-90011 - page 2

    ii © Cop yright 20 00 Agilent T echnolo gies All Rights Reserved. Repro- duction, adaptation, or trans- lation w ithout prior writ ten permi ssion is prohibit ed, except as allowed under copy- right laws. Agilent P art No. 8343 0-90011 Printed in USA Februar y 2000 Agilent T echnolo gies Lightwave Division 1400 Fountaingrove Parkway Sant a Rosa, C ...

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    iii The Agi lent 8 3430A—At a Glance The Agilent 83430A—At a Glance The A gilent 83 430A ligh twave tra nsmitter is a dir ectly mod ulated DFB laser sour ce for d igital a nd ana log test ing up to 2.5 Gb/s. Des igned fo r eval uating the p erformanc e of hi gh-speed TDM (time division multipl exed) an d WDM (wavelength divi sion multiplexed) o ...

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    iv The Agil ent 83430A — At a Gla nce T est Capabilities in Systems The Agilent 83430A can be used as a general optical source or combined wi th other ins trumentation in systems to make a variety of measurem ents. • Optic al pa rametric test s — opti cal rece iver sensi tivity, dispersi on power penalty of sin gle-mode fi ber (with an Agi le ...

  • Agilent Technologies 83430-90011 - page 5

    v The Agil ent 83430 A — At a Glance Laser classification The Agilent 83430A is classified as an IEC LASER Class 1. The total power of light energy radiated out of the OPTICAL OUT connector is no greater than +8.1 dBm (6.5 mW). Operator maintenance or precautions are not necessary to maintain safety . No operator accessible controls, adjustments, ...

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    vi Gener al Sa fet y Cons ider at ions General Safety Considerat ions This product has been designed and test ed in accordance with IEC Publi ca- tion 61010-1 , Safety Requir ement s for Elect rical Equipm ent for Measu remen t, Contro l and Laborat ory Use, and has been supplied in a safe c ondition . The instruction d ocumentation co ntains info ...

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    vii General Sa fety Considera tions CAUTIO N Before s witching on this i nstrumen t, make s ure that the lin e voltag e select or swit ch is set to the line vo ltage of the po wer supp ly and the corr ect fuse is inst alled. Ass ure the sup ply voltag e is in the speci fied rang e. CAUTIO N This pro duct is de signed fo r use in Insta llatio n Cate ...

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    Contents Contents-1 The Agile nt 83430A — A t a Glance iii 1 Gettin g Starte d Step 1. Insp ect t he Sh ipm ent 1-4 Step 2 . Ch eck the Fus e 1-6 Step 3 . Connect th e Line-Power Cab le 1-8 Step 4. T urn on the Agi lent 83430A 1-10 Return ing the Instrum ent for Se rvice 1-11 2 M aking M easur ement s Using the Agilen t 83430 A 2-3 Cleaning Conne ...

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    1 Step 1. Insp ect t he Sh ipment 1-4 Step 2 . Ch eck the Fus e 1-6 Step 3 . Connect th e Line-Power Cab le 1 -8 Step 4. T urn on the Agi lent 83430A 1-10 Return ing the Instru ment f or Servic e 1-11 Gett ing Star ted ...

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    1-2 Gettin g Started Getting Started Getting Started The instr uction s in this chapter show you how to i nstall you r Agil ent 83430A. Y ou shou ld be abl e to fi nish t hese pr ocedures in abo ut ten to twent y minute s. After you ’ ve comp leted this chapte r , con tinue w ith Chapter 2, “ Making Mea- surem ents ” . Ref er to Chapter 3, ? ...

  • Agilent Technologies 83430-90011 - page 13

    1-3 Gettin g Started Getting Sta rted Measu rem ent ac cur acy — it ’ s up to you! Fiber -optic connectors are easi ly damaged when connected t o dirty or damaged cables and accessories. The Agilent 83430A ’ s front-panel OPTICAL O UT connector is no excep- tion. When you use improper cleaning and handling techniques, you r isk expensive inst ...

  • Agilent Technologies 83430-90011 - page 14

    1-4 Gettin g Started Step 1 . Inspec t the Ship ment Step 1. Inspect the Shipment 1 Verify t hat all components ordere d have ar rived by comp aring t he shippi ng forms to the ori ginal pur chase ord er. Inspect all shipping containers . If yo ur shipment is damage d or incomple te, save the packi ng material s and noti fy both the ship ping car r ...

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    1-5 Gettin g Started Step 1 . Inspect the Shipmen t ...

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    1-6 Gettin g Started Step 2. Check the Fu se Step 2. Check the Fuse CAUTIO N Before c onnecti ng the li ghtwave receive r to th e power so urce, y ou must s et the rear -panel vo ltage se lector c orrectly to ad apt the lightwav e receiv er to t he power sour ce. An improp er selector s ettin g can damage the Agi lent 83430A when i t is tu rned on. ...

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    1-7 Gettin g Started Step 2. Chec k the Fu se 6 Verif y that the val ue of t he line-vo ltage f use is co rrect. • For 100/120V ope ration, use an IEC 127 5 × 20 mm, 0. 315 A , 250 V, Ag ilent part num ber 2 110-0449. • For 220/240V operat ion, use an I EC 127 5 × 20 mm, 0.16 A, 250 V, Agi lent part number 2110 -0448. WAR NI N G For c ontinu ...

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    1-8 Gettin g Started Step 3. Conn ect the L ine-Pow er Cable Step 3. Connect the Line-Power Cable CAUTIO N Always use the three-pr ong AC power cor d supplie d with this in strument. Failur e to ensu re adequat e earth groundi ng by not us ing this cord may caus e instru ment dama ge. CAUTIO N Do not connect ac power unti l you have verified the li ...

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    1-9 Gettin g Started Step 3. Conn ect the L ine-Pow er Cabl e 3 Connec t t he ot her end o f th e lin e-po wer c ord to th e pow er r ecept acle . V ari ous po wer cables ar e available t o conne ct the A gilent 8 3430A to ac power outl ets uniqu e to specif ic geogr aphic are as. The cab le appr opriate fo r the are a to whic h the Ag ilent 83430A ...

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    1-10 Gettin g Started Step 4. Turn on the Agilen t 83430A Step 4. Turn on the Agilent 83430A • Press th e front- panel LINE key. The f ront-pane l LIN E switch disco nnects th e mains circuits from th e mai ns sup- ply af ter the EMC fi lters and before othe r parts of the instr ument. If the Agile nt 83 430A fails to turn on pr operly , cons ide ...

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    1-11 Gettin g Started Returning the In strument for Service Returning the Instrument for Service The instr uction s in t his s ecti on sho w yo u ho w to prop erly retur n the ins tru - ment f or repa ir or cal ibration. Always c all the Ag ilent T echn ologies I nstrume nt Suppo rt Cente r firs t to init iate se rvice before ret urning yo ur inst ...

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    1-12 Gettin g Started Returni ng the Instrument for Servi ce infor matio n sho uld be r eturn ed with the inst rume nt. • Type of ser vice requir ed. • Date inst rument was r eturn ed f or re pair. • Descri ption of th e proble m: • Whet her p roblem is c ons tant or inte rmitt ent. • Wheth er instru ment is temp erature- sensiti ve. • ...

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    1-13 Gettin g Started Returning the In strument for Service Sealed Air Cor poratio n (Commerce, Ca lifornia 900 01). Air Cap looks li ke a plastic sh eet fill ed with air bu bbles. Use the pink (antist atic) Air Cap ™ to redu ce static electri city. Wr apping the in strument s everal times in this ma - teria l will pr otect the in strumen t and p ...

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    2 Using the Agilen t 83430 A 2-3 Front-pane l Fe atures 2-3 Example Use s 2 -5 Cleaning Connecti ons f or Ac curate Measure ments 2-9 Making Me asurem ents ...

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    2-2 Making Me asurement s Making Mea sure ment s Making Measurements In this chapter , you ’ ll find e xamples o f making measure ments us ing the Agilent 83430A . The las t secti on of this chapte r exp lains how to ma intain top pe rforma nce of your ins trum ent by us ing p roper handli ng and clean ing t echniqu es. Be sure to read this se ct ...

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    2-3 Making M easurement s Using the A gilent 83430A Using the Agilent 83430A Front-panel Features The follo wing par agr aphs descri be th e Agile nt 83430A front-pa nel featur es. LINE key Disco nnects th e mains circ uit from the ma ins supply aft er the EMC fil ters and befor e other parts of th e inst rument. SELE CT button Selec ts between th ...

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    2-4 Making Me asurement s Using the Agi lent 8343 0A DIGIT AL I N (AC COUPLE D) Modu lation inp ut for di gital sign als. The in put is AC coupled. BNC connect or . DIGIT AL I N (DC CO UPLED ) Modu lation in put for analog si gnals. Th is input is DC co upled. BN C connecto r . W A VELENGTH ADJUST knob Allows you to adjust the las er ’ s waveleng ...

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    2-5 Making M easurement s Using the A gilent 83430A Example Uses T esting opti cal receiv er sensi tivity Y ou can use the Agi lent 83430A to measure the minim um sensiti vity of an opti cal rece iver . The f ollowi ng figur e shows o ne poss ible t est setu p whic h uses the follow ing eq uipme nt: • Agilent 834 30A • Agilen t 71603B erro r pe ...

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    2-6 Making Me asurement s Using the Agi lent 8343 0A . ...

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    2-7 Making M easurement s Using the A gilent 83430A T esting dispersion power penalty Signal degradat ion due to fiber d ispersion can have a major impact on t he maximu m distance over whic h optic al data ca n reliabl y be sen t. The di sper- sion power penal ty of singl e-mode fiber can be tested with the measu rement setup shown in the f ollowi ...

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    2-8 Making Me asurement s Using the Agi lent 8343 0A T esting jit ter tolerance High-s peed digita l receive rs are often requi red to rece ive or regener ate data using a clock signal that is recove red or extracted fro m the data wavefo rm. V ari ation in the data rat e, commonly known as jitte r , can complicat e the clock recovery and data r eg ...

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    2-9 Making M easurement s Clea ning Con nection s for Ac curate Measurem ents Cleaning Connections for Accurate Measurements T od ay , advances in measurement capabilities make c onnectors and connec- tion t echniques more imp ortant than eve r . Dama ge to the connec tors on ca li- bration and verifi cation devices, te st ports, cables, and other ...

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    2-10 Making Me asurement s Clea ning Con nection s for Ac curate M easurem ents tions take repeata bility unce rtainty into accou nt? • Will a connector de grade the re turn loss too much , or will a fusio n splice be re- quire d? For example, many DFB lasers canno t operate with re flections f rom conne ctors. Of ten as mu ch as 9 0 dB isola tio ...

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    2-11 Making M easurement s Clea ning Con nection s for Ac curate Measurem ents Figure 2-2. Universal adapters to Diamond HMS -10. The H MS-10 e ncases t he fiber within a soft nickel silver (Cu/ Ni/Zn) center which is su rrounded by a to ugh tu ngsten c arbide casin g, as sh own in Figure 2-3 . Figure 2-3. Cross-secti on of the Diamond HMS- 10 conn ...

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    2-12 Making Me asurement s Clea ning Con nection s for Ac curate M easurem ents The so ft core, wh ile allowin g precise c enterin g, is also th e chief lia bility of the conne ctor . The s oft materia l is ea sily da maged. Care must be taken to mini- mize exces sive scra tching and we ar . While minor wear is not a problem if th e glass face is n ...

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    2-13 Making M easurement s Clea ning Con nection s for Ac curate Measurem ents Use the fol lowing gu idelines t o achieve the best poss ible perf ormance whe n making mea suremen ts on a fiber -optic system: • Never use metal or sharp objects to clean a connector and never scrape the connector. • Avoi d matching gel and oils . Figure 2-4. Clean ...

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    2-14 Making Me asurement s Clea ning Con nection s for Ac curate M easurem ents Figure 2-6. Damage fr om improper cle aning. While these of ten work w ell on fir st inser tion, the y are grea t dirt mag nets. Th e oil o r gel gr abs and h olds gr it that is then gr ound i nto the end of the fibe r . Also, some ea rly gel s were d esigned for use wi ...

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    2-15 Making M easurement s Clea ning Con nection s for Ac curate Measurem ents • Keep c onnecto rs cover ed when n ot in use. • Use fusion spli ces on the more per manent criti cal nodes. Choo se the best con- necto r possibl e. Replace c onnectin g cables re gularly. Frequentl y measure the return los s of the connecto r to check for de gradat ...

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    2-16 Making Me asurement s Clea ning Con nection s for Ac curate M easurem ents V isual inspection of fiber en ds Vi sual ins pection of fiber end s can be hel pful. Cont aminatio n or impe rfection s on the cable end face can be detected as well as cracks or chips in the fiber itself . Use a micros cope (100X to 200X magnifi cation) to in spect th ...

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    2-17 Making M easurement s Clea ning Con nection s for Ac curate Measurem ents T o clean a non-lensed connec tor CAUTIO N Do not u se any type of foam swab to cle an optical fiber e nds. Foam swabs can leave film y deposit s on fiber ends that can degrade perform ance. 1 Apply pur e isop ropyl alcoh ol to a clean lint -fre e cotton sw ab or lens pa ...

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    2-18 Making Me asurement s Clea ning Con nection s for Ac curate M easurem ents CAUTIO N Do not s hake, t ip, or invert c ompress ed air can isters, becaus e this rel eases partic les in t he c an i nto th e a ir . R efer to ins tru ctions provi ded o n the compressed air canister . 7 As soo n as the connec tor is dry, connect or co ver it for lat ...

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    3 Specificati ons 3-3 Regulat ory Informati on 3-6 Specifications and Re gulatory Inform ation ...

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    3-2 Specific ations and R egula tory Inf ormati on Specifica tions and R egulatory Info rmation Specifications and Regulatory Information This chapter lists s pecific ation an d chara cteristi cs of t he inst rument. The dis - tinction b etween th ese term s is descr ibed as fol lows: • Specificati ons desc ribe warrante d perfo rmance over the t ...

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    3-3 Specifi cations and Regulator y Inform ation Specif ications Specifica tions Table 3-1. Cen ter Wavelength Option Center Wavele ngth Option Center Waveleng th Standard 1550 ± 1 nm 462 1546.2 ± 1 nm 130 1310 ± 20 nm 469 1546.92 ± 1 nm 327 1532.68 ± 1 nm 477 1547.72 ± 1 nm 335 1533.47 ± 1 nm 485 1548.51 ± 1 nm 343 1534.25 ± 1 nm 493 1549 ...

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    3-4 Specific ations and R egula tory Inf ormati on Specif ications Table 3-2. General Specificat ions Eye Mask Perfor mance Conforms t o GR-253 and ITU G.957 requir ements at OC-1, OC -3/STM-1, OC-12/STM- 4, OC-48/ STM-16 Wavele ngth Adju stment Ran ge (ove r 2 5 ± 10 ° C ambient temperat ure range ) ± 1.25 nm ( ± 1.8 nm typ ical) Extincti on R ...

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    3-5 Specifi cations and Regulator y Inform ation Specif ications Table 3-3. I nput Modul ation DIGITAL IN AC COUPLED DIGITAL IN DC COUPLED ANALOG IN AC COUPLED Maximum Input Level 2 V p-p – 4.5 to 0 V 2 V p-p Bit Rate 50 to 2500 Mb/s a D C to 2500 Mb/s 0.1 to 2500 MHz (3 dB bandwi dth) Pulse Pattern (charact erist ic) 40 to 60% ones den sity 0 to ...

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    3-6 Specific ations and R egula tory Inf ormati on Regulatory Informa tion Regulatory Inf ormation • Laser Classificati on: Thi s product contai ns an IE C LASE R Class 1 . • This produ ct complies with 21 CFR 1040. 10 Class 1, IEC 825-1 Class 1. • This prod uct is de signed for use in INSTA LLATION CATEGORY II and P OLLU- TION DE GREE 2, per ...

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    3-7 Specifi cations and Regulator y Inform ation Regula tory Information ...

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    4 Options 4- 2 Front-Panel Fiber -Optic Adapters 4-4 Power Co rds 4 -5 Agilen t T echnologies Service Office s 4-6 Reference ...

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    4-2 Refe re nce Options Options Table 4-1. Cen ter Wavelength Opt ions Option Center Wavele ngth Option Cent er Waveleng th Standard 1550 ± 1 nm 462 1546.2 ± 1 nm 130 1310 ± 20 nm 469 1546.92 ± 1 nm 327 1532.68 ± 1 nm 477 1547.72 ± 1 nm 335 1533.47 ± 1 nm 485 1548.51 ± 1 nm 343 1534.25 ± 1 nm 493 1549.32 ± 1 nm 350 1535.04 ± 1 nm 501 155 ...

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    4-3 Reference Options Table 4-2. Ou tput Interfa ce Options Option Des cription 011 Diamond HMS- 10 fiber- optic input connector int erface 013 DIN 47256 fiber -optic in put conn ector interf ace 014 ST fi ber-opti c inp ut conne ctor i nterf ace 017 SC fiber-o ptic in put connect or interfa ce 022 Angled conta ct fiber -optic out put inte rface ...

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    4-4 Refe re nce Front-Pan el Fiber-Optic Adapters Front-Pa nel Fibe r-Opti c Ad apters Front Pan el Fiber-Optic Adapt er Desc ri pt ion Agilent Part Number Diamond HMS -10 81000AI FC/PC a a. T he FC/PC ada pter is th e standard adapt er suppl ied with the instrume nt. Optio ns 011, 013, 014, and 01 7 repl ace the st andard interfa ce. 81000FI D4 81 ...

  • Agilent Technologies 83430-90011 - page 55

    4-5 Reference Power Cords Power Cords Plug T ype Cable P art No. Pl ug Descript ion Lengt h (in/cm) Color Country 250V 8120 -1351 8120-17 03 Strai ght *BS136 3A 90 ° 90/2 28 90/2 28 Gray Mint Gray Unit ed King dom, Cypr us, Nigeria, Zimba- bwe, S ingapore 250V 8120 -1369 8120-06 96 Straig ht *NZSS198/ ASC 90 ° 79/2 00 87/2 21 Gray Mint Gray Austr ...

  • Agilent Technologies 83430-90011 - page 56

    4-6 Refe re nce Agil ent Tech nol ogie s Servi ce Of fices Agilent Technologies Service Offices Befor e returni ng an instrumen t for service , call the Ag ilent T echnologi es Instrumen t Suppo rt Center at (800) 403 -0801, vis it the T est and Measu rement W eb Sites by Country page at http ://www .t m.agi lent.com /tmo /countr y/Eng lish/ index ...

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    5 General In format ion 5-4 Elect rostati c Disch arge In formatio n 5-7 T roubleshoot ing 5-9 If the output po wer is low 5- 10 T o check th e line-pow er fuse 5-11 Performance T ests 5-13 T est 1. Di gital T hreshol d 5-1 5 T est 2. Freq uenc y Resp onse (A NALO G IN) 5 -17 T est 3. Electrical Return Loss (ANALOG IN) 5-20 T est 4. Elect rical Ret ...

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    5-2 Serv icing Servicing Servicing In this chapte r , you' ll find info rmati on on troubl eshoot ing, t esti ng per for- mance, adjustin g, and replacin g parts in the instrume nt. WAR NI N G The laser assembly, A2A1, i n this instrument is n ot field servicea ble. Safet y fi rst! Before s ervicing the A gilen t 83430 A, fami liarize yoursel ...

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    5-3 Servici ng Servicing WAR NI N G For c ontinu ed prot ection agains t fire h azard , replac e line fuse only with same t ype and ratings, ( type T 0.315A/250V f or 100/120V operatio n and 0.16A/250V f or 220/240V opera tion). The use of othe r fus es or materia ls is prohib ited . WAR NI N G Use of c ontrols or ad justme nt or perfo rmance o f p ...

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    5-4 Serv icing General In formation General Information Whene ver you c ontact A gilent T echn ologies about yo ur Agilen t 83430A, have the complete serial number and option designati on available. This will ensure you obtain accurate se rvice informati on. • Refer to Ta b l e 5 - 1 for a l ist of in ternal lab els. • Refer to T able 5 -2 on p ...

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    5-5 Servici ng General Inf ormation Table 5-2. Ser vice Tools Tool Agilen t Part Number Small P ozidriv screwdriver 8710-0899 Wire cutte r 8710-0012 Long-nose pli ers 871 0-1107 5.5 mm nut driver 8710-1220 7 mm nut driver 8710-1217 TORX T-1 0 d river 8710-1623 TORX T-1 5 d river 8710-1622 Table 5-3. Major Asse mblies and C ables Refer ence Designat ...

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    5-6 Serv icing General In formation ...

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    5-7 Servici ng Electro static Disch arge Informatio n Electrostatic Discharge Information Electr ostatic discharge (ES D) can damage or des troy elect ronic compo nents. All w ork on e lectronic assemblie s shoul d be per formed at a static -safe work statio n. The follo wing figu re shows an exa mple of a static- safe work statio n using two ty pe ...

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    5-8 Serv icing Electro static Discharge Information T o ensure user s afety , the static-s afe accessori es must provide at least 1 M Ω of isolati on from grou nd. Refer to Ta b l e 5 - 4 for inform ation on o rdering stat ic- safe accessories. WAR NI N G Thes e techn iques fo r a static- safe wor k station should no t be used when worki ng on ci ...

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    5-9 Servici ng T roubl eshooting Troubleshooting The follo win g proc edures are lo cate d in this sect ion: If the output po wer is low 5- 10 T o check th e line-pow er fuse 5-11 WAR NI N G The opening of cove rs or removal of part s is likely to expose dangerous v oltages. Di sconnec t the instr ument fro m all volta ge sources while it is being ...

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    5-10 Serv icing Trou bleshoo ting If the ou tput power is low Check for th e followin g commo n proble ms: ❒ Clean th e OPTICAL OUT conne ctor as des cribed in “ Cl eaning Co nnections for Ac- curate Me asureme nts ” on page 2-9 . ❒ Perfo rm the ad justment procedu res. ...

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    5-11 Servici ng T roubl eshooting To check the line-power fuse 1 Locat e the li ne-input c onnector on the i nstrument ’ s r ear p ane l. 2 Discon nect the line-po wer cabl e if it is connec ted. 3 Use a small fl at-blade screwdri ver to pry open the fuse holder door. CAUTIO N Y ou must remove th e voltage tumbler t o change t he voltage sele cto ...

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    5-12 Serv icing Trou bleshoo ting ...

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    5-13 Servici ng Perfor mance T ests Performance Tests The proced ures in thi s section tes t the Agil ent 83430 A ’ s per formance using the s pecificat ions list ed in Chapter 3, “ Specif ication s and Re gula tory Inform a- tion ” as the perf ormance standard. Al l of the test s are done man ually with out the a id of a comp uter . None o f ...

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    5-14 Serv icing Perf ormance Test s Table 5-5. Require d Test Equip ment Equipme nt Agilent Rec ommend ed Model Critical Sp ecificat ions Optical spectrum analy zer 71450B Equ ipment substi tution n ot reco mmended. Waveleng th accuracy must be ±0. 5 nm or better. Digital vo ltag e meter 34401A ≥ 150 Vdc r ange. 1 mV a ccuracy. Digitizing osc il ...

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    5-15 Servici ng Perfor mance T ests Test 1. Digital Thre shold 1 Connec t the e quip ment as show n in the fol low ing fi gure . Figure 5-1. Equi pment setup ...

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    5-16 Serv icing Perf ormance Test s 2 Set t he patt ern gener ator to t he follo wing sett ings. For step-by- step inst ructio ns on s etting t hese val ues, r efer t o “ Confi guring the patte rn genera tor ” o n page 5-35 . data pattern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 23 – ...

  • Agilent Technologies 83430-90011 - page 73

    5-17 Servici ng Perfor mance T ests Test 2. Frequency Response (ANALOG IN) This perfor mance t est che cks th e 80% mod ulatio n level and the freque ncy respo nse at t hat leve l. 1 Connec t the e quip ment as show n in the fol low ing fi gure . Figure 5-2. Equi pment setup 2 Set t he patte rn genera tor to th e followi ng sett ings. For s tep-by- ...

  • Agilent Technologies 83430-90011 - page 74

    5-18 Serv icing Perf ormance Test s genera tor ” o n page 5-35 . data pattern. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 23 – 1 data a mplitude (E CL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 850 mV p-p data output high lev el (ECL) . . . . . . . . . . . . ...

  • Agilent Technologies 83430-90011 - page 75

    5-19 Servici ng Perfor mance T ests Figure 5-3. Equi pment setup 16 Press th e PRESET key on the Agi lent 8752C networ k analyze r. 17 Set the Agil ent 8752 C to the fo llowing set tings: RF outp ut power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 10 dBm ampli tude scale . . . . . . . . . . . . . . . . ...

  • Agilent Technologies 83430-90011 - page 76

    5-20 Serv icing Perf ormance Test s Test 3. Electrical Return Loss (ANALOG IN) This procedu re measures the ele ctrical r eturn l oss for t his conne ction when the driv e level is less than the powe r required for 80% modula tion. 1 Press th e PRESET key on the Agi lent 8752C networ k analyze r. Figure 5-4. Calibrati on kit con nections 2 With ave ...

  • Agilent Technologies 83430-90011 - page 77

    5-21 Servici ng Perfor mance T ests 4 Set the Agil ent 8752 C to the fo llowing set tings: RF outp ut power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 10 dBm ampli tude scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 dB/ division start frequenc y . . . . . . . . ...

  • Agilent Technologies 83430-90011 - page 78

    5-22 Serv icing Perf ormance Test s Test 4. Electrical Return Loss (DIGITAL IN) 1 Press th e PRESET key on the Agi lent 8752C networ k analyze r. 2 With averagin g on, calib rate the Ag ilent 8752 C for a 1-port refl ection measure ment at th e end of th e RF output cable. Use th e calibra tion termi nation kit. A throug h calibra tion is no t requ ...

  • Agilent Technologies 83430-90011 - page 79

    5-23 Servici ng Perfor mance T ests 10 Confirm that the retu rn loss meets th e followin g requireme nts: ≤ 1.0 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >12.07 d B 1 GHz t o 2 GHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >9.07 dB 2 GHz ...

  • Agilent Technologies 83430-90011 - page 80

    5-24 Serv icing Perf ormance Test s Test 5. Eye Qua lity (DIGITAL IN) This test ch ecks the quality o f the eye diagr am with a modulati on rate of 2.48832 Gb/s . 1 Connec t the e quip ment as show n in the fol low ing fi gure . Figure 5-7. Equipment setup fo r eye q uality ...

  • Agilent Technologies 83430-90011 - page 81

    5-25 Servici ng Perfor mance T ests 2 Set t he patte rn genera tor to th e followi ng sett ings. For s tep-by-st ep inst ructio ns on s etting t hese val ues, r efer t o “ Confi guring the patte rn genera tor ” o n page 5-35 . data pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 23 ? ...

  • Agilent Technologies 83430-90011 - page 82

    5-26 Serv icing Perf ormance Test s Test 6. STM-16/OC-48 Conformance 1 Connec t the e quip ment as show n in the fol low ing fi gure . Figure 5-8. Equipment setup fo r eye q uality 2 Set t he patt ern gener ator to t he follo wing sett ings. For step-by- step inst ructio ns on s etting t hese val ues, r efer t o “ Confi guring the patte rn genera ...

  • Agilent Technologies 83430-90011 - page 83

    5-27 Servici ng Perfor mance T ests 3 Turn the Ag ilent 834 30A on, and press b oth front -panel PRESET/V ARIABLE buttons s o that th e W A VELENGTH ADJUST an d B IAS AD JUST lights ar e off. 4 On the Agil ent 83480 A di gital co mmunicati ons ana lyzer, adjust the amp litud e scale, time s cale, an d offset s as ne eded. 5 Adju st the Agil ent 834 ...

  • Agilent Technologies 83430-90011 - page 84

    5-28 Serv icing Perf ormance Test s Test 7. OC-1 Conformance 1 Connec t the e quip ment as show n in the fol low ing fi gure . Figure 5-9. Equipm ent setup for OC-1 conf ormance ...

  • Agilent Technologies 83430-90011 - page 85

    5-29 Servici ng Perfor mance T ests 2 Set t he patte rn genera tor to th e followi ng sett ings. For s tep-by-st ep inst ructio ns on s etting t hese val ues, r efer t o “ Confi guring the patte rn genera tor ” o n page 5-35 . data pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 23 ? ...

  • Agilent Technologies 83430-90011 - page 86

    5-30 Serv icing Perf ormance Test s 14 Press Run Until , and wait for 300 waveforms to be processed. 15 Press the bl ue shift key and t hen pre ss Eye mask to d isplay the eye m ask resul ts.Verif y that t here ar e no mask or margi n hit s. ...

  • Agilent Technologies 83430-90011 - page 87

    5-31 Servici ng Perfor mance T ests Test 8. Output Power 1 Connect t he Agilent 83430A ’ s OPTICAL OUT connector to a opt ical power meter. 2 Disconnect an y cables connected t o the Agilent 83430A ’ s AN ALOG IN or DIGIT AL IN input connector s. 3 Turn the Agilen t 83430A on , and pres s the fro nt-pan el PRESET/V ARIABLE butto n so th at the ...

  • Agilent Technologies 83430-90011 - page 88

    5-32 Serv icing Perf ormance Test s f Press more 3 of 3 , more 1 of 3 , and then set pat l abel . g Use th e displa yed soft keys to c reate a label to identi fy this n ew patte rn. It will minimize co nfusion as you use the patt ern genera tor. Ente r the su ggest- ed lab el ALL ONES . Press FINISH ENTRY when you have fini shed e ntering all the l ...

  • Agilent Technologies 83430-90011 - page 89

    5-33 Servici ng Perfor mance T ests Test 9. Output Wave leng th 1 Connec t the e quip ment as show n in the fol low ing fi gure . Figure 5-10. Equipme nt setup for output wavel ength 2 Turn on the Agilen t 8 3430A and t he optical spectrum a nalyzer, an d allow them to warm up for 30 minu tes. 3 Perform a user wavelength calibrati on of the optical ...

  • Agilent Technologies 83430-90011 - page 90

    5-34 Serv icing Perf ormance Test s 9 Verify t hat th e meas ured wave length is wi thin 1 nm o f the A gilen t 83430 A ’ s nominal value . If the Agile nt 83430A is an Option 130, the wavelengt h must be within 20 nm of the nominal value. ...

  • Agilent Technologies 83430-90011 - page 91

    5-35 Servici ng Perfor mance T ests Configuri ng the pattern generator This pr ocedur e show s you, step-b y-step, how to config ure the Agil ent 7 0841B pattern gene rator settin gs f or the pe rformance tes ts an d adju stment proce- dures. It i s assu med, th at the Ag ilent 70311A clock source is config ured in the modular measurement sy stem ( ...

  • Agilent Technologies 83430-90011 - page 92

    5-36 Serv icing Adjust ment P rocedure s Adjustment Procedures Perfo rm the a djustme nts in t his sec tion if the inst rument fails a ny of i ts per- formance tests. Periodic adjus tment is not re quired to maintain s afety . The f ollowing adjustme nt proce dures ar e provide d in this section : T o remove t he ins trument co ver 5-38 Adju stment ...

  • Agilent Technologies 83430-90011 - page 93

    5-37 Servici ng Adju stme nt Proc edur es Table 5-6. Require d Test Equip ment Equipme nt Agilent Rec ommend ed Model Critical Sp ecificat ions Digital vo ltag e meter 34401A ≥ 150 Vdc r ange. 1 mV a ccuracy. Digitizing osc illoscope 83480A with 83483A a nd 83485A >10 GH z bandwi dth ≤ 10 ps/div amplitud e scale ≥ 500 MHz tr iggering, opti ...

  • Agilent Technologies 83430-90011 - page 94

    5-38 Serv icing Adjust ment P rocedure s To remove the instrument cove r CAUTIO N Electros tatic disc harge (ESD) ca n damage or destr oy electro nic componen ts. All w ork on e lectroni c assemblie s shoul d be per formed at a static -safe work stati on. Refer to “ Electrost atic Di scharg e Inf ormation ” on page 5-7 for more informat ion o n ...

  • Agilent Technologies 83430-90011 - page 95

    5-39 Servici ng Adju stme nt Proc edur es Adjustment 1. Power Supply In this proce dure, you ’ ll a djust bo th t he – 12V and +12V suppl ies. Thes e sup- plies are locat ed on the A3 Power S upply Ass embly . Because the +5V ADJ pote ntiomete r is n ot used in thi s instr ument, it is not adjus ted. 1 Conne ct the li ne-po wer cord t o the A g ...

  • Agilent Technologies 83430-90011 - page 96

    5-40 Serv icing Adjust ment P rocedure s Figure 5-11. Location of A3 power supp ly adjustments ...

  • Agilent Technologies 83430-90011 - page 97

    5-41 Servici ng Adju stme nt Proc edur es Adjustment 2. Laser Bias and Control 1 Locat e each a djustmen t pote ntiomete r shown in the f ollowi ng figur e. Turn each potent iome ter fully coun terclo ckwise. Figure 5-12. Location of A2 main b oard adjust ments ...

  • Agilent Technologies 83430-90011 - page 98

    5-42 Serv icing Adjust ment P rocedure s 2 Connect an opti cal power meter to the Ag ilent 8343 0A ’ s fron t-panel OPTICAL OUT connector. Use a g ood qual ity opt ical fiber (9/125 µ m) and make sure the fiber is cle an before connecting . 3 Turn the Ag ilent 834 30A on, and press b oth front -panel PRESET/V ARIABLE buttons s o that th e W A VE ...

  • Agilent Technologies 83430-90011 - page 99

    5-43 Servici ng Adju stme nt Proc edur es j Press user patt ern and then INTERNL P A TT 1 . 8 Adju st the ECL – 1 ADJ potent iometer so that the optical power measures +1.5 dBm. 9 On t he pa ttern gen erator , pr ess the le ft-sid e select pattern sof tkey. 10 Press th e 2 23 – 1 softkey. 11 Locat e the te st point s that are label ed “ P4 ? ...

  • Agilent Technologies 83430-90011 - page 100

    5-44 Serv icing Adjust ment P rocedure s 17 Connec t the e quip ment as show n in the fol low ing fi gure . Figure 5-13. Equipme nt setup for laser bias 18 Turn t he Agilen t 83430A ’ s LINE switc h on, and cl ear the Ag ilent 83480A ’ s disp lay. 19 On th e Agil ent 8 3430A, p ress th e PRESET/V A RIABLE button so tha t the BIAS ADJUST light i ...

  • Agilent Technologies 83430-90011 - page 101

    5-45 Servici ng Adju stme nt Proc edur es e Press Continue to activate the color grade . f Press Dark c al , and foll ow the instr uctions on th e screen. g When the dark calibra tion is c omplete , press Forma t to select de cibels. h Press Enter to comp lete the m easu remen t se tup. 21 On th e Agil ent 8 3430A, press the front-pa nel PRESET/V A ...

  • Agilent Technologies 83430-90011 - page 102

    ...

  • Agilent Technologies 83430-90011 - page 103

    Index Index- 1 A AC COUPLED connector, 2-3 ac power cables, 1- 9 , 4-5 accessories static-safe, 5-8 accuracy, measurem ent, iv adapters, 2-4 fiber optic, 4-4 adjustable features, iii adjus ting output amplitude, 2-4 wave length , 2-4 adjustment procedures, 5-3 6 instrument cover removal, 5-38 laser bias and control, 5-41 power supply, 5-39 required ...

  • Agilent Technologies 83430-90011 - page 104

    Index -2 Index DIGITAL IN performance test, 5-22 ESD (electrostatic discharge), 5-4 , 5- 7 , 5-38 extin ction r atio adjustm ent range, 3-4 measurement , 5-27 , 5-29 , 5-45 optic al signals , iii specifica tion, 3-4 eye diagram performance test, 5-24 zero cros sing, 5-16 eye mask measuremen t, 5-30 eye qualit y, 5-2 6 DIGITAL IN performance test, 5 ...

  • Agilent Technologies 83430-90011 - page 105

    Index- 3 Index N noise declaration, 3-6 noise, r elative inten sity, 3- 4 O OC-1 conformance performance test, 5-28 OC-48 fi lter, 5-18 , 5-25 , 5-44 OC-48/STM-16 conformance performance test, 5-26 one-port reflect ion measureme nt, 5-2 0 , 5-22 opera ting spe cificat ions, 3-5 optical level s ymm etry, ii i OPTICAL OUT connector, iv – v , 1-3 , ...

  • Agilent Technologies 83430-90011 - page 106

    Index -4 Index side-mode suppression ratio, 3-4 spare fu se, 1-6 , 5-11 specific ation s center wavele ngth, 3-3 definition of terms, 3-2 general, 3- 4 operating, 3-5 spectral width, 3- 4 static-safe accessories, 5-8 STM-16 /OC-48 confor mance performance test, 5-26 storage t emperature, 3- 5 suppression ratio, side-mode , 3-4 swabs , 2-16 system t ...

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