Gabatarwar daidaitawar BOB na HDV Phoelectron Technology LTD

1. Tsarin ƙaddamar da BOB:

1. Tsarin ƙaddamar da BOB na HDV Phoelectron Technology LTD:

Yana da mahimmanci don gyara ikon gani da taswirar ido na ƙarshen watsawa, kuma mai karɓa yana buƙatar daidaita hankalinsa da sa ido na RSSI.

Fihirisar ƙaddamar da BOB:

2. Tsarin haɗin BOB na HDV Phoelectron Technology LTD.:

Jadawalin haɗin gwajin BOB na al'ada, gwajin hanya ɗaya, haɗaɗɗiyar haɗin waje, mai ɗaukar hoto, mitar kuskure, mita wuta, CDR da sauran kayan aiki suna buƙatar siyan daban. Kowane wurin aiki yana buƙatar kwamfuta don tallafawa gwajin.

1. Gabatarwa na ES-BOBT8 jerin kayan gwajin BOB:
2. Zai iya tallafawa har zuwa tashoshi 8 don gwajin BOB, Ƙarƙashin wutar lantarki na ciki da kuma attenuator, zai iya kammala aikawa da karɓar ƙaddamarwa da gwaji a lokaci guda;
3. Haɗin aikin BERT da haɗin gwiwar 2xSFP + haske mai haske, na iya tallafawa 1.25G ~ 10G fitarwa na siginar siginar, don samar da hasken sigina don gwajin ji na BOB;
4. Haɗe-haɗen CDR Trigger fita, dawo da siginar agogon da aka gina ta ciki, na iya samar da siginar agogon da ake buƙata don gwajin hoton ido na gani;
5. Mitar wutar lantarki mai ƙunshe da kai na iya samar da daidaitaccen gano ƙarfin ikon gani.

ES-BOBT8 jerin tsarin gwajin BOB yana ba da cikakkiyar saiti na mafita na kayan aikin gwaji, wanda zai iya samar da iyakar tashoshi 8 naONUGwajin BOB. Mai gwadawa na BER da tushen haske, attenuator, mita wutar lantarki, raƙuman raƙuman raƙuman ruwa, sauyawa na gani da sauran kayan aiki an haɗa su cikin na'ura ɗaya, tare da ƙwararrun gwaji na BOB na sarrafa kayan aiki, na iya samar da cikakken tsarin gwajin gwajin BOB.

2,Ka'idodin aikin Hardware:

Matsayin tsarin ES-BOBT8 na tsarin kayan masarufi na BOB:

1.A cikin samar da tsari, duba ko daONUwutar lantarki mai haske ta tashar gani ta al'ada ce a ainihin lokacin
2.Duba ko ƙimar ikon gani da aka karɓa ta karanta taONUtashar tashar gani daidai ne.

Ka'idodin aiki na tsarin hardware:

1. Babban software na kwamfuta a cikin tsarin aiki an haɗa shi da kebul na USB na SCM U1 (samfurin C8051F340) ta hanyar kebul na USB a cikin tsarin gwaji don gane haɗin haɗin mutum da na'ura;
2. SCM U1 (samfurin C8051F340) yana kula da U3 (bit mai gano kuskure guntu VSC8228, siginar janareta), OLT module (PON SFP), ADC (wanda aka aiwatar ta ADL5303 da AD5593), da DAC (wanda MAX4230 da AD5593 suka aiwatar) ta hanyar IPS. bas.
3. The bit kuskure gano guntu VSC8228 aika fitar da siginar na ƙayyadadden code nau'i da kuma kudi bisa ga umarnin, da kuma fitar da OLT module aika fitar da Tantancewar siginar na daidai code type da rate ta hanyar SerDES dubawa. Tsawon zangon OLT da aka aika shine 1490nm, kuma an raba hasken zuwa takwas ta hanyar tsaga. Bayan DAC control attenuator VOA attenuates zuwa ga takamaiman ikon gani, an haɗa shi daONUtashar jiragen ruwa na gani.ONUyana karanta madaidaicin ikon gani kuma yana kwatanta shi da ainihin ƙimar.
4. Tsarin aiwatar da DAC: SCM U1 (samfurin C8051F340) yana aika bayanan DAC zuwa AD5593 ta hanyar bas ɗin I2C, tashar I / O ta AD5593 tana haifar da siginar lantarki, kuma ana haifar da siginar wutar lantarki ta hanyar amplifier mai aiki MAX4230, wanda aka yi amfani da shi zuwa ga Fitar shigar da wutar lantarki na VOA attenuator, ta yadda hasken da PON OLT module ke fitarwa ya rage zuwa. ƙayyadaddun ikon gani, sa'an nan kuma haɗa zuwa tashar tashar gani taONU.
5. Tsarin aiwatar da ADC: Bayan hasken da ke fitarwaONUAn gano ta PD (photodetector), PD yana haifar da siginar sigina masu girma dabam bisa ga ƙarfin siginar gani, kuma an canza shi zuwa ƙarfin lantarki tare da mafi girman kewayon lambobi da daidaito mafi girma ta hanyar mai sauya logarithmic ADL5303. AD5593 an gane darajar kuma an canza shi zuwa sigina na dijital ta hanyar bas ɗin I2C ta hanyar SCM U1 (samfurin C8051F340) kuma a ƙarshe an gabatar da shi akan ƙirar kwamfuta mai masaukin baki.