Optical transceiver ndi chipangizo chomwe chimasintha ma siginecha angapo a E1 kukhala ma siginecha owoneka.Optical transceiver amatchedwanso zida zopatsirana.Ma transceivers owoneka ali ndi mitengo yosiyana malinga ndi kuchuluka kwa madoko a E1 (ndiko kuti, 2M) omwe amatumizidwa.Nthawi zambiri, transceiver yaying'ono kwambiri imatha kufalitsa 4 E1s.Transceiver yayikulu kwambiri yamakono imatha kutumiza 4032 E1s, ndipo E1 iliyonse imaphatikizapo mafoni 30.Kotero, kodi transceiver optical 2m imatanthauza chiyani, ndipo pali mgwirizano wotani pakati pa transceiver ya kuwala E1 ndi 2M?

Mitundu ya transceivers kuwala, transceivers kuwala amagawidwa m'magulu atatu: PDH, SPDH, SDH.PDH optical transceivers ndi ma transceivers opangidwa ndi mphamvu zazing'ono, zomwe zimagwiritsidwa ntchito pawiri, zomwe zimatchedwa point-to-point applications, ndipo mphamvu zawo nthawi zambiri zimakhala 4E1, 8E1, ndi 16E1.SDH optical transceiver ili ndi mphamvu yayikulu, nthawi zambiri 16E1 mpaka 4032 E1, SPDH optical transceiver, pakati pa PDH ndi SDH.Nthawi zambiri, transceiver ya kuwala ndi ya PDH optical transceiver, yomwe ndi chipangizo chosinthira zithunzi.Nthawi zambiri, transceiver yamagetsi yokhala ndi doko limodzi loyang'ana ndi madoko anayi amagetsi a 2M ndiofala kwambiri.Ogwiritsa ntchito ma telecom nthawi zambiri amagwiritsa ntchito kutumiza ma siginecha amawu.Ku ofesi yapakati, optical terminal amasintha chizindikiro chamagetsi cha 2M kukhala chizindikiro cha kuwala ndikuchitumiza pa chingwe cha kuwala.Pambuyo pofika kumapeto kwa wogwiritsa ntchito, chizindikiro cha kuwala chimasinthidwa kukhala chizindikiro cha magetsi cha 2M, ndiko kuti, utumiki wa 2M umatumizidwa ku zipangizo zamawu monga PCM.Ndipo ma transceivers a fiber optic amagwiritsidwa ntchito kwambiri polumikizana ndi data.Komanso ndi mtundu wa photoelectric kutembenuka zida.Nthawi zambiri, pali madoko opitilira limodzi ndi madoko angapo a Ethernet.Imatembenuza ma siginecha owoneka kukhala ma siginecha a Ethernet, omwe amagwiritsidwa ntchito kutumiza ma data ku zida zoyankhulirana za data monga ma router kapena ma switch.

Kwa ma transceivers owoneka, 2M kwenikweni amatanthauza kuti mawonekedwe omaliza a 1550 ali ndi bandwidth ya 2M, yomwe imagwiritsidwa ntchito kutumiza deta yolamulira ya 485, ndipo pali 1.25G, 155M ndi zina zotero, ndiye bandwidth yofunikira pakufalitsa mavidiyo, makamaka 1 njira ya kanema. zofunika 155M.Ma transceivers owoneka E1 ndi 2M amangosiyana m'mawu.E1 ndi mawu a gulu mu European muyezo wa PDH (mogwirizana ndi North America muyezo gulu ndi T1, mwachitsanzo 1.5M).Kwa mulingo wa E1 waku Europe ndi 2M, motero 2M imagwiritsidwa ntchito kuyimira E1.Tinganenenso kuti E1 ndi dzina la sayansi ndipo 2M ndi dzina lodziwika bwino.Mu nthawi ya SDH, mlingo wa VC12 (ndi TU-12) mu ubale wa SDH multiplexing unali pafupi ndi 2M (kwenikweni osati 2048K), anthu ena amatchanso izi 2M, zomwe ziridi zolakwika.Kwa doko la E1 pa chipangizocho, nthawi zambiri limatchedwa doko la 2M, ndipo liyenera kukhala lolankhula bwino la E1 kuti likhale lolondola.Momwemonso, doko la 34M liyenera kukhala doko la E3, ndipo doko la 45M liyenera kukhala doko la DS3.Doko la 140M ndi doko la E4.