Qhov Twg Fiber Loopback Kuv Yuav Siv Rau Kuv Transceiver?
Hauv kev sib txuas lus, fiber ntau rov qab yog kho vajtse tsim los muab cov ntaub ntawv tshaj tawm ntawm kev xa rov qab rau cov teeb liab fiber ntau, uas feem ntau siv rau kev kuaj fiber ntau lossis kev sib txuas network. Thaum peb xav paub txog seb peb qhov fiber ntau kis ntawm lub tshuab xa hluav taws xob ua haujlwm tau zoo heev, peb tuaj yeem siv cov xov kab hluav taws xob fiber ntau xa rov qab raws li txoj kev khwv nyiaj txiag los kuaj thiab paub tseeb tias. Yeej, lub voj voos pab nyob rau hauv debugging cov teeb meem kev sib txuas ntawm lub cev ntawm transceiver los ntawm kev ncaj qha cov teeb liab laser los ntawm qhov xa tawm cov chaw nres nkoj rov qab mus rau qhov chaw nres nkoj txais. Txij li cov fiber optic transceivers muaj cov interface sib txawv thiab txuas ntau hom cable, nws tsis yog qhov yooj yim los xaiv txoj cai loopback rau peb cov transceiver. Cov ncej no yuav yog cov lus qhia ntawm yuav ua li cas los xaiv txoj cai loopback cable rau tshwj xeeb transceiver module.
Ua ntej yuav txiav txim siab qhov twg loopback cable rau siv, peb yuav tsum paub ua ntej cov qauv thiab kev faib tawm ntawm fiber ntau loopback cable. Feem ntau, ib qho xov kab rov tav yog qhov yooj yim fiber ntau txuas rau cable tshem tawm nrog ob tus txuas rau ntawm ib qho kawg, ua lub voj. Qee tus neeg muag khoom muab cov qauv txhim kho kom zoo nrog cov ntawv thaiv kab dub kom tiv thaiv qhov muag hluav taws xob. Tus qauv tsim no tau ntau dua ntawm qhov loj me thiab muaj zog hauv kev siv. Raws li siv cov fiber ntau siv, muaj tib hom kev thim rov qab thiab multimode loopback, muaj rau ntau hom polishing. Raws li hom kho qhov muag sib txuas ntawm lub voj qaum, fiber ntau cov kab rov tav tuaj yeem faib rau LC, SC, FC, ST, MTP / MPO, E2000, thiab lwm yam. Hauv kev kuaj fiber ntau optic transceiver modules, feem ntau siv yog LC, SC thiab MTP / MPO voj rov rau xov.
Daim duab 1: LC & SC Loopback Cable
Lub LC thiab SC loopbacks yog ua nrog cov yooj yim fiber ntau cable thiab cov kab sib txuas; nws tsis nyuaj rau kom nkag siab lawv cov kev teeb tsa. Raws li rau MTP / MPO loo rov qab, nws yog tsuas yog siv rau kev sim cov kab hluav taws xob txuas, xws li 40G thiab 100G transceivers. Nws cov teeb meem sib txawv txij li cov fiber ntau suav tsis yog ib txwm zoo tib yam hauv kev siv sib txawv.
Hauv 8 lub xov hluav taws xob MTP / MPO lub voj voos rov qab, yim lub xov hluav taws xob tau txuas ntawm ob sab ntawm lub txuas, tawm hauv nruab nrab plaub txoj kab txuas. Thiab cov fibers txais yuav ib txoj kab ncaj nraim ntawm 1-12, 2-11, 5-8, 6-7. Lub polarity channel haum yog qhia hauv cov duab hauv qab no.
Daim duab 2: 8 Fibers Loopback Polarity Channel Ua Raws Li Lub Npe
Qhov tsuas yog qhov sib txawv ntawm 12-fiber MTP loopback thiab 8-fiber loopback yog tias plaub ntu plaub hauv nruab nrab yog tsis npliag. Nws cov ntsiab lus yog 1-12, 2-11, 3-10, 4-9, 5-8, 6-7.
Daim duab 3: 12 Fibers Loopback Polarity Channel Ua Dlhos
Tus 24 roj hmab MTP loopback tseem siv hom 1 polarity. Nws cov txheej txheem sib thooj yog qhia hauv qab no.
Daim duab 4: 24 Fibers Loopback Polarity Channel Ua Dlhos
Xav txog cov qauv zoo sib xws ntawm transceiver thiab lub voj qaum, peb yuav tsum xav txog hom kev txuas, hom polish, thiab hom cable thaum xaiv lub voj rov rau cov transceiver. Cov lus qhia xaiv rau qee qhov feem ntau siv cov transceiver modules tau muab los piav qhia nyob hauv cov rooj ntawv hauv qab no.
Cov lus 1: Cov kev xaiv uas tsis muaj kev txhim kho rau 10G SFP + transceivers
| Qauv | Interface yam | Cable Hom | Suited Loopback |
| 10GBASE-USR | LC Duplex (PC) | MMF | LC / UPC Duplex Multimode Fiber Loopback |
| 10GBASE-SR | LC Duplex (UPC) | MMF | |
| 10GBASE-LR | LC Duplex (UPC) | MMF | |
| 10GBASE-ER | LC Duplex (UPC) | SMF | LC / UPC Duplex Ib Hom Hom Fiber Loopback |
| 10GBASE-ZR | LC Duplex (PC) | SMF |
Rooj 2: Xaiv kev xaiv rau 40G QSFP + transceivers
| Qauv | Interface yam | Cable Hom | Suited Loopback |
| 40GBASE-CSR4 | MTP / MPO (UPC) | MMF | 8/12 Fibers MTP / UPC Multimode Fiber Loopback |
| 40GBASE-SR4 | MTP / MPO (UPC) | MMF | |
| 40GBASE-PLRL4 | MTP / MPO (APC) | SMF | 8/12 Fibers MTP / APC Ib Leeg-hom Fiber Loopback |
| 40GBASE-PLR4 | MTP / MPO (APC) | SMF | |
| 40GBASE-LR4 | LC Duplex (PC) | SMF | LC / UPC Duplex Ib Hom Hom Fiber Loopback |
| 40GBASE-LR4L | LC Duplex (UPC) | SMF | |
| 40GBASE-ER4 | LC Duplex (UPC) | SMF | |
| 40GBASE-LX4 | LC Duplex (UPC) | MMF / SMF | LC / UPC Duplex Multimode / Ib Leeg-Hom Fiber Loopback |
Rooj 3: Loopback xaiv rau 100G QSFP28 transceivers
| Qauv | Interface yam | Cable Hom | Suited Loopback |
| 100GBASE-SR4 | MTP / MPO (UPC) | MMF | 8/12 Fibers MTP / UPC Multimode Fiber Loopback |
| 100GBASE-PSM4 | MTP / MPO (APC) | SMF | 8/12 Fibers MTP / APC Ib Leeg-hom Fiber Loopback |
| 100GBASE-LR4 | LC Duplex (UPC) | SMF | LC / UPC Duplex Ib Hom Hom Fiber Loopback |
Rooj 4: Xaiv kev xaiv ntau ntau rau CFP transceivers
| Qauv | Interface yam | Cable Hom | Suited Loopback |
| 40GBASE-SR4 CFP | MPO / MTP (UPC) | MMF | 8/12 Fibers MTP / UPC Multimode Fiber Loopback |
| 40GBASE-LR4 CFP | SC Ob Leeg (UPC) | SMF | SC / UPC Duplex Ib Hom Hom Fiber Loopback |
| 40GBASE-FR CFP | SC Ob Leeg (UPC) | SMF | |
| 100GBASE-LR4 CFP | SC Ob Leeg (PC / UPC) | SMF | |
| 100GBASE-ER4 CFP | SC Ob Leeg (PC / UPC) | SMF | |
| 100GBASE-SR4 CFP | MPO / MTP (UPC) | MMF | 24 Fibers MTP / UPC Multimode Fiber Loopback |
Cov ncej no tham txog cov kev xaiv fiber ntau rov qab rau qee qhov feem ntau siv fiber ntau rau cov kis las. Txog rau lwm tus transceiver modules uas tsis tau hais hauv tsab xov xwm no, peb tseem tuaj yeem paub yuav ua li cas xaiv cov loopback uas tsim nyog rau nws los ntawm kev tau txais cov ntsiab lus hais txog nws cov hom interface, tiv tauj lub cev thiab hom cable.
