Qalabkee ayaa looga baahan yahay soo saarista iyo tijaabinta modules-ka indhaha ee 800G?

Qalabkee ayaa looga baahan yahay soo saarista iyo tijaabinta modules-ka indhaha ee 800G?

Tijaabada 800Gmodules indhahawaxaa ku jira tijaabada waxqabadka soo dhawaynta iyo tijaabinta waxqabadka gudbinta. Liiska qalabka asaasiga ah iyo macquulka waa sida soo socota:
1, Qalabka Tijaabada
1.1MCB side loox
Hagaaji laba loox oo side MCB ah si aad u dhigto module-ka DUT iyo module-ka caadiga ah siday u kala horreeyaan. Module-ka indhaha waxaa lagu dhejiyaa guddiga side-ka waxaana lagu xiraa mitirka koodhka qaladka iyada oo loo marayo fiilada RF ee xawaaraha sare leh. Laba loox oo side-ka ah ayaa hubin kara madax-bannaanida tijaabada RX iyo tijaabada TX. Haddii la isticmaalayo tijaabada loopback, hal loox oo side ah ayaa loo baahan yahay. Module-ka indhaha ee 800G wuxuu u baahan yahay waddo indhaha ah oo 8T8R ah, taas oo u dhiganta shuruudaha 16 lammaane oo calaamado kala duwan ah oo loogu talagalay Farta Dahabka ah, taas oo macnaheedu yahay 32 fiilooyin RF/looxyo side.
1.2 Qalabka Xakamaynta Heerkulka
Looxyada sideyaasha MCB badanaa waxaa lagu qalabeeyaa aaladaha heerkulka iyo ogaanshaha si ay u taageeraan waxqabadka tijaabinta heerkul kala duwan. Qalabka xakamaynta heerkulka guud ahaan waxaa lagu shubaa looxa sideyaasha MCB ee DUT. Ku-darka xakamaynta heerkulka looxa sideyaasha MCB waxay fududeyn kartaa qalabka.
1.3 Falanqeeyaha koodka qaladka
Hagaaji laba tijaabiye oo qalad bit ah oo 800G ah si ay u soo saaraan taxanaha PRBS oo ay u wadaan tijaabooyinka RX iyo TX siday u kala horreeyaan. Haddii module-ka indhaha ee caadiga ah uu taageero taxanaha PRBS, wuxuu badbaadin karaa qalabka ogaanshaha qaladka hal bit wuxuuna isticmaali karaa kombiyuutarka sare si uu u amro module-ka indhaha ee caadiga ah si uu u diro taxanaha tijaabada. Tijaabada RX wadista (tijaabada qaladka bit): Samee taxane tijaabo ah, hel taxanaha soo celinta, oo isbarbardhig qaladka u dhexeeya gudbiyaha iyo qaataha, taas oo ah, qaladka bit. Tijaabada TX wadista (tijaabada jaantuska indhaha): Samee taxane tijaabo ah oo loogu talagalay DUT, DUT-na wuxuu soo saaraa iftiin iyadoo loo eegayo taxanahan. Isku-darka gudaha ee guddiga side-ka MCB iyo qalabka xakamaynta heerkulka ee falanqeeyaha koodhka qaladka ayaa si dheeraad ah u fududeyn kara qalabka.
Qalabka Saacadda 1.4CDR
Calaamadda indhaha ayaa si joogto ah loo diraa, CDR-na wuxuu ka soocaa geeska xilligan calaamadda indhaha.
1.5 Oscilloscope
Sida ku cad calaamadda waqtiga ee uu bixiyay CDR, xogta calaamadaha indhaha ayaa si joogto ah loogu dhejiyaa si loo sameeyo jaantus indho. Haddii oscilloscope-ku uu taageero 4 gelin iyo tijaabinta 800G, markaa laba cutub ayaa loo baahan yahay. Ka qaalisan, haddii aad rabto inaad lacag kaydsato, waxaad isticmaali kartaa badhanka nalka si aad u beddesho.
1.6Beddelka indhaha
Beddel waddada indhaha inta u dhaxaysa tijaabinta jaantuska indhaha iyo tijaabinta awoodda.
1.7Mitirka korontada indhaha
Cabbir awoodda iftiinka ee soo baxda, 8 kanaal. Mitirka korontada ee indhaha waxaa lagu dari karaa badhanka indhaha, taasoo fududaynaysa qalabka.
1.8 Koronto DC ah
Sii korontada DC ee deggan guddiga side-ka MCB.

2, Nidaamka Imtixaanka ee macquulka ah ee dhismaha
2.1. Tijaabada waxqabadka soo dhawaynta RX (heerka qaladka bit, xasaasiyadda)
Socodka calaamadda: Falanqeeyaha koodka qaladka 2 → Qaybta caadiga ah ee indhaha → Qalabka indhaha → DUT → Falanqeeyaha koodka qaladka 1
Qalabka muhiimka ah: qalabka indhaha lagu xidho (loo isticmaalo baarista meelaha korontada), module-ka caadiga ah ee indhaha (loo isticmaalo sidii ilo iftiin).
Ujeeddo: Si loo cabbiro heerka qaladka bit-ka ee DUT ee awoodaha indhaha ee kala duwan iyadoo la beddelayo xaddiga yareynta.
2.2. Tijaabada waxqabadka sii deynta TX (Jaantuska indhaha, awoodda indhaha)
Socodka calaamadda: Falanqeeyaha koodka qaladka 1 → DUT → Beddelka indhaha → (mitir koronto/oscilloscope+CDR)
Qalabka muhiimka ah: Beddelka indhaha (beddelka wadada), CDR (soo kabashada saacadda, calaamadaha PAM4).
Ujeeddo: Si loo xaqiijiyo awoodda iftiinka ee la sii daayay iyo tayada calaamadda (Jaantuska indhaha waa inuu muujiyaa saddexda "indhaha" ee PAM4).
3, Qodobbada muhiimka ah ee habaynta gaarka ah ee tijaabada 800G
Tirada kanaalada: 800G waxay qaadataa 8 kanaal (8T8R), faraha birta ah ee looxa MCB-na waxay u baahan yihiin inay u dhigmaan 16 lammaane oo calaamado kala duwan ah (32 fiilooyin RF ah).
Nooca calaamadda: Si loo sameeyo habaynta PAM4, oscilloscope-ka waa in lagu lamaaneeyaa qalabka CDR si sax ah loogu qabto jaantuska indhaha.
Xalka la fududeeyay: Qalabka ogaanshaha khaladaadka wuxuu isku dari karaa howlaha xakamaynta heerkulka iyo MCB. Badhanka indhaha waxaa lagu dari karaa mitirka awoodda indhaha. Haddii tijaabada dib-u-celinta dib loo isticmaalo (DUT self collecting), waxay yareyn kartaa hal guddi oo MCB ah iyo module caadi ah, laakiin walxaha tijaabada ah way xaddidan yihiin.

4, Sharaxaadda ereyada muhiimka ah
PRBS: Taxane aan kala sooc lahayn oo been abuur ah, oo lagu matalayo taraafikada xogta dhabta ah.
MCB: Guddiga side-qaadaha u hoggaansanaanta module-ka, qalabka tijaabada.
CDR: Soo kabashada xogta saacadda, soo saarista saacadda calaamadaha indhaha.
Jaantuska indhaha ee PAM4: Isbeddelka garaaca wadnaha ee afar heer ah, jaantuska indhaha wuxuu soo bandhigayaa afar tallaabo (saddex furitaan oo indhood ah)