Multiplexers SDH: incazelo, isiqu

multiplexers Digital ehlangana amadivayisi okunengqondo ezakhelwe ukudluliswa elawulwa kolwazi ezivela emithonjeni idatha eziningi zibe okukhipha umgudu owodwa. Eqinisweni, leli thuluzi iyi-digital ukushintsha positional amaningi. Ngakho, kungashiwo baphetha ngokuthi i Multiplexer digital iyona amasignali inkinobho okokufaka ku-okukhipha umugqa owodwa. Lesi sihloko kuzoxoxwa uhlobo ahlukene amadivayisi - multiplexers optical SDH.

Amadivayisi anjalo zenzelwe ukusebenza ukugeleza idatha esebenzisa imishayo ukukhanya, okuyinto zingafani isigaba noma amplitude nehele kanye nombono. SDH multiplexers adlulisele ulwazi iziteshi E1 and Ethernet imigqa ukuthutha amanethiwekhi fiber-optic. Basebenza eyodwa noma ezimbili-optical zesivikelo sesifuba (owodwa imodi noma multimode) e 155, 520 Mbit / s ngesikhathi wavelength ka 1550/1310 NM. SDH multiplexers ingafinyelela kuze kufinyelele 126 amaphuzu contact.

Izinzuzo amadivayisi zibala nokuqinisela, ukuphepha lobuchwepheshe, isivikelo nokugenca kolwazi ngocansi.

SDH-multiplexers kukhona uyakaleka kalula ukufaka iyunithi main kuze kube iziteshi ezintathu yokudlulisela i-Ethernet modules E1, nge-intercom, futhi isiteshi PM.

Lezi amadivayisi ngezimiso eziphakeme "ukuphikelela" inethiwekhi. Implementation E1 inesikhala esincane jitter ukubaluleka okuphawulwe le ndinganiso E1 phakathi nokuvumelanisa drift, futhi ukwehluleka at STM-1 uhlelo lwezikhathi. Interface imingcele uvumele ukuqapha iphutha isiteshi zokuxhumana , futhi enze usuke isiteshi enye. indlela Optical namandla agodliwe 1 + 1. Okusho ukuthi, uma usebenza kuma-fibre optic isiteshi, uma umonakalo ikhebula, ukuxhumana phakathi ababhalisile lilondolozwe.

SDH multiplexers kuhlanganiswe kalula nezinye izinhlobo imishini SDH. Abakwazi usebenza izindlela zokuvumelanisa iphinde indlela zivunyelwe multimode nasezakhini imodi fibre. SDH Multiplexer isekela ukucushwa kude kanye nokuphathwa TCP / IP, 10/100 BaseT olandelwayo.

Amadivayisi anjalo ukushintsha ngokuvamile lahlukaniswa izinhlobo: esibulalayo futhi mina / O. Umehluko phakathi kwalezi zinhlobo ayiyona ingxenye amatheku, futhi nokubekwa idivayisi inethiwekhi SDH. Multiplexer Terminal uqeda aggregate iziteshi beya phakathi kwabo inqwaba iziteshi okukhipha kanye input. Uhlobo amathuluzi ukuba sendleleni yesibili okuhambisa umugqa aggregate emgqeni bangazihluphi sesimweni Lesisemkhatsini. Ngakho ulwazi iziteshi owumthelela ethathwe ukusakaza elihlanganisiwe noma ijovwe kuwo.

abakhiqizi abaningi ukukhiqiza jikelele multiplexers SDH uhlobo, ezisetshenziswa njengoba okokufaka / okukhipha esibulalayo, kanye cross-nezixhumi - kuncike amamojuli efakwe ekuhlanganisweni kwabo nezimbobo owumthelela.

Ekuphetheni, siye sinezele ukuthi fibre optic multiplexers, kuyanda ezingasho ngenxa ukuthuthukiswa kakhulu lolu hlobo lokuxhumana. I-fibre optic netheknoloji yekusasa.