Ib daim ntawv foos me-pluggable (SFP) yog ib hom khoom siv transceiver uas tau ua qauv los ntawm MSA (ntau daim ntawv cog lus pom zoo). MSA yuav txhais cov yam ntxwv ntawm cov kab ke thiab feem ntau yog kev pom zoo ntawm ntau lub chaw tsim khoom. Cov kev pom zoo lees tias txhua SFP lossis SFP + cuab yeej los ntawm ib tus neeg muag khoom yuav ua haujlwm zoo. Kab lus no yuav muab cov lus qhia ntxaws ntxiv rau SFP MSA thiab SFP + MSA.
Ib Txheej txheem cej luam ntawm Pluggable Optical Transceiver MSA Cov Qauv
Ob qho SFP thiab SFP + transceivers kho qhov muag raug ntsuas los ntawm MSA. Cov ntaub ntawv no nruj me ntsis txhais cov yam ntxwv txaus ntawm qhov khoos phib tawj transceiver kom cov kab ke (zoo li Ethernet hloov, Router, thiab media media) cov neeg muag khoom yuav siv cov chaw nres nkoj ntawm lawv cov khoom siv, yog li ntawd, MSA ua raws li pluggable optical transceivers (SFP lossis SFP +) los ntawm ib tus neeg muag khoom yuav ua haujlwm zoo.
Pluggable optical transceivers yog lub cev tsim los ntawm cov ntawv luam tawm me me ntawm lub rooj tsav xwm (PCB) uas muaj cov hluav taws xob hauv hluav taws xob, nrog hluav taws xob PCB "ntug txuas" ntawm ib kawg thiab, feem ntau, muaj fiber ntau qhov txuas ua ke (dual LC-hom nyob rau hauv rooj plaub ntawm SFP / SFP + modules) ntawm lwm qhov, ntim rau hauv cov tsev vaj tse hlau suav nrog kev tso lub hauv paus. Cov kev ua haujlwm yooj yim ntawm lub cuab yeej yog los hloov hluav taws xob xa cov ntaub ntawv los ntawm tus tswv tsev mus rau lub teeb liab kho qhov muag xa mus rau cov kab hluav taws xob txuas hluav taws xob cable, thiab, nyob rau lwm qhov kev sib hloov, hloov lub teeb liab tau txais los ua hluav taws xob xa mus rau tus tswv tsev. dhau ntawm tus ntug txuas.
SFP MSA lossis SFP Li Cas + MSA Dab Tsi Qhov Txhais Tau Yog Dab Tsi?
Lub ntsiab tseem ceeb uas tau teev tseg hauv SFP / SFP + MSA tau teev muaj raws li hauv qab no:
Tshuab Kev Sib Xws
Mechanical qhov ntev ntawm lub cuab yeej (H: 8.5mm, W: 13.4mm, D: 56.5mm)
Transceiver ntug txuas rau tswj hwm PCB-mounted hluav taws xob txuas mating
Tus tswv tsev tswj cov pawg neeg kho tshuab (qhov chaw / qhov loj ntawm cov cam ntim khoom, thiab lwm yam)
Tso tub rog, Muab rho tawm thiab tuav tseg cia cov chaw
Labelling
Bezel tsim kev txiav txim siab rau cov host systems
Khoom siv hluav taws xob txuas txhua yam
Tawb los ua ke qhov ntev (hollow tawb mounted hauv system tsim)
Kev Sib Txuas Hluav Taws Xob
Cov ntsiab lus Pin
Cov sijhawm xav tau thiab sijhawm I / O
Module txhais interface thiab cov lus teb cov lus piav
Dhau li, Digital Diagnostics Monitoring (DDM) muaj ntau yam nyob rau hauv ntau niaj hnub SFP / SFP + transceivers raws li tau txhais hauv SFF-8472 MSA kev qhia. "D" hauv GLC-LH-SMD sawv cev rau DDM kev ua haujlwm raws li kev lag luam tus qauv MSA SFF-8472. Lub SFF-8472 ntxiv DDM interface thiab tau hais tias DDM interface yog qhov txuas ntxiv ntawm cov lej ID nkag mus rau hauv GBIC cov lus qhia, nrog rau SFP MSA.
Qhov Tseem Ceeb ntawm SFP / SFP + MSA
MSAs, zoo li feem ntau cov qauv kev siv zog, yog qhov tseem ceeb vim tias lawv tuaj yeem muab cov kev xaiv rau cov neeg siv khoom hauv cov chaw uas lawv yuav cov khoom lag luam. Txoj kev ywj pheej xaiv yog lub hauv paus ntawm kev ua haujlwm tau zoo ntawm kev lag luam. Cov qhua tuaj noj mov hauv khw yuav tsum muaj qhov muaj txiaj ntsig ntawm ntau tus neeg xa khoom ywj pheej, txhua tus sib tw kom tau txais cov khoom lag luam. Tus cwj pwm no yuam cov neeg muab khoom lag luam kom ua tau zoo thiab muaj tswv yim li sai tau, tsav tsheb nqis thiab muab cov qhua tuaj yeem ntau cov kev xaiv.
Nws yog qhov tseeb tias qee cov neeg muag khoom tau sim txo qhov kev ntsuas tus qauv ntawm SFP MSA lossis SFP + MSA. Cov phiaj xwm feem ntau yog los mus sau cov cim kev cai rau qee qhov tsis muaj qhov cim xeeb nyob hauv EEPROM ntawm txhua SFP / SFP +. Thaum cov transceiver tau ntxig rau tus tes hloov qhov, nws EEPROM yog nyeem, thiab, yog tias cov cai "tsis raug" cov qauv tsis lees paub yog "tsis sib xws". Tab sis FOCC tuaj yeem ua tau. Tam sim no, FOCC muaj cov tshuaj sib tov nrog cov khoom lag luam sib txawv ntawm cov khoom thauj uas tuaj yeem ua tau raws li qhov xav tau ntawm Cisco, HP, Juniper, NETGEAR, Brocade thiab lwm yam.
