I-Optical transceiver iyisisetshenziswa esiguqula amasiginali amaningi e-E1 abe amasignali abonakalayo. I-Optical Transceiver ibizwa nangokuthi imishini yokudlulisa amehlo. Ama-Optical transceivers anamanani ahlukene ngokwenani lama-E1 (okungukuthi, 2M) adluliselwe. 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 kumishini yokuxhumana yedatha 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 i-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 be-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.