Optical transceiver ndiye chida chothandizira kufalitsa ma siginecha. Ma transceivers owoneka bwino amayenera kugawidwa kukhala ma transceivers opanga ma telefoni, ma transceivers optical optical, transceivers optical audio, transceivers optical data, Ethernet optical transceivers, ndi transceivers optical m'magulu a 3: PDH, SPDH, SDH.

SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy), malinga ndi tanthawuzo lovomerezeka la ITU-T, ndikutumiza zizindikiro za digito pa liwiro losiyana kuti lipereke chiwerengero chofananira cha ndondomeko ya chidziwitso, kuphatikizapo njira zochulukitsa, njira zamapu, ndi njira zogwirizanitsa zogwirizana. . Dongosolo laukadaulo.

SDH Optical transceiverali ndi mphamvu yayikulu, nthawi zambiri 16E1 mpaka 4032E1. Tsopano yogwiritsidwa ntchito kwambiri pamanetiweki owoneka bwino, SDH Optical terminal ndi mtundu wa zida zomwe zimagwiritsidwa ntchito pamaneti owoneka.

Kugwiritsa ntchito kwakukulu kwa SDH Optical transceiver
Zipangizo zotumizira za SDH zapangidwa kwambiri m'dera lalikulu lamanetiweki komanso gawo lachinsinsi. Ogwiritsa ntchito ma telecom monga China Telecom, China Unicom, ndi Radio ndi Televizioni apanga kale ma SDH-based backbone optical transmission network pamlingo waukulu.

Ogwira ntchito amagwiritsa ntchito malupu akuluakulu a SDH kunyamula ntchito za IP, ntchito za ATM, ndi zida zolumikizirana ndi fiber optical fiber kapena kubwereketsa mwachindunji mabwalo kumabizinesi ndi mabungwe.

Maukonde ena akuluakulu achinsinsi amagwiritsanso ntchito ukadaulo wa SDH kukhazikitsa malupu a SDH mkati mwadongosolo kuti azinyamula mautumiki osiyanasiyana. Mwachitsanzo, mphamvu zamagetsi zimagwiritsa ntchito malupu a SDH kunyamula deta yamkati, kuwongolera kutali, kanema, mawu ndi mautumiki ena.