I-Optical transceiver iyisisetshenziswa esiguqula amasiginali amaningi we-E1 abe amasignali abonakalayo.I-Optical Transceiver ibizwa nangokuthi imishini yokudlulisa amehlo.Ama-Optical transceivers anamanani ahlukene ngokwenombolo ye-E1 (okungukuthi, i-2M) yamachweba adlulisiwe.Ngokuvamile, i-transceiver encane kakhulu yokubona ingadlulisela ama-4 E1.I-transceiver enkulu yamanje enkulu kunazo zonke ingadlulisela i-4032 E1s, futhi i-E1 ngayinye ihlanganisa izingcingo ezingu-30.Ngakho, isho ukuthini i-transceiver optical 2m, futhi buyini ubuhlobo phakathi kwe-optical transceiver E1 kanye ne-2M?

Izinhlobo ze-transceivers optical, ama-transceivers optical ahlukaniswe ngezigaba ze-3: i-PDH, i-SPDH, i-SDH.Ama-transceiver optical e-PDH angama-transceiver optical amancane, ngokuvamile asetshenziswa ngababili, abizwa ngokuthi izinhlelo zokusebenza ze-point-to-point, futhi amandla awo ngokuvamile yi-4E1, 8E1, ne-16E1.I-SDH optical transceiver inomthamo omkhulu, ngokuvamile i-16E1 kuya ku-4032 E1, i-SPDH i-transceiver ebonakalayo, phakathi kwe-PDH ne-SDH.Ngokuvamile, i-transceiver ebonakalayo ingaphezulu kwe-PDH optical transceiver, okuyidivayisi yokuguqula isithombe sikagesi.Ngokuvamile, i-transceiver ebonakalayo enembobo yokubona eyodwa kanye nezimbobo zikagesi ezinezinga le-2M yizona ezivame kakhulu.Opharetha be-Telecom bavame ukuyisebenzisela ukudlulisa amasignali ezwi.Ehhovisi elimaphakathi, itheminali yokubona iguqula isignali kagesi engu-2M ibe isignali yokubona futhi iyithumele ngekhebuli yokubona.Ngemva kokufinyelela ekupheleni komsebenzisi, isignali yokubona iguqulwa ibe isignali kagesi engu-2M, okungukuthi, isevisi ye-2M ithunyelwa kumishini yezwi efana ne-PCM.Futhi ama-fiber optic transceivers asetshenziswa kakhulu ekuxhumaneni kwedatha.Kubuye kube uhlobo lwemishini yokuguqula i-photoelectric.Ngokuvamile, kunezimbobo zokukhanya ezingaphezu kweyodwa kanye nezimbobo ze-Ethernet eziningana.Iguqula amasignali okubonayo abe amasignali e-Ethernet, asetshenziselwa ukuthumela izinsiza zedatha ezintweni zokuxhumana zedatha njengamarutha noma amaswishi.

Kuma-transceivers okubona, i-2M ngokuyisisekelo isho ukuthi i-wavelength yokugcina engu-1550 ine-bandwidth engu-2M, esetshenziselwa ukudlulisa idatha yokulawula engu-485, futhi kukhona i-1.25G, 155M nokunye okunjalo, okuwumkhawulokudonsa odingekayo ekudlulisweni kwevidiyo, ngokuyisisekelo isiteshi esingu-1 sevidiyo. udinga 155M.Ama-transceivers optical E1 kanye ne-2M empeleni ahluke kuphela ekukhulumeni.I-E1 isisho seqembu elisezingeni laseYurophu le-PDH (elihambisana neqembu elijwayelekile laseNyakatho Melika yi-T1, okungukuthi 1.5M).Ngokwesilinganiso saseYurophu esijwayelekile se-E1 ngu-2M, ngakho-ke i-2M ivame ukusetshenziselwa ukumela u-E1.Kungashiwo futhi ukuthi i-E1 igama lesayensi futhi i-2M yigama elivamile.Esikhathini se-SDH, izinga le-VC12 (kanye ne-TU-12) ebudlelwaneni bokuphindaphinda kwe-SDH laliseduze ne-2M (empeleni hhayi i-2048K), abanye abantu baphinde babize lezi 2M, empeleni ezingalungile.Ngembobo ye-E1 kudivayisi, ngokuvamile ibizwa ngokuthi imbobo engu-2M, futhi kufanele ibe ubugagu buka-E1 ukuze inembe.Ngokuhambisanayo, imbobo engu-34M kufanele ibe yimbobo ye-E3, futhi imbobo engu-45M kufanele kube imbobo ye-DS3.Imbobo engu-140M iyimbobo ye-E4.