Multiplexers SDH: description, nadi

Digital multiplexers ake hada ma'ana na'urorin da aka tsara don sarrafawa watsa bayanai daga mahara data kafofin cikin guda fitarwa tashar. A gaskiya, irin wannan na'urar ne a mahara dijital positional sauya. Haka kuma, shi za a iya ƙarasa da cewa wani dijital multiplexer ne canza shigar da sakonni zuwa wata guda fitarwa line. Wannan labarin za a yi la'akari da raba irin na'urorin - Tantancewar multiplexers SDH.

Irin na'urorin aka tsara don aiki tare da bayanai da kwarara ta hanyar haske bim, abin da ya bambanta a lokaci ko mawadãta grating da zango. SDH multiplexers aika da bayanai a kan E1 tashoshi da kuma Ethernet Lines su safarar fiber-na gani networks. Sun yi aiki a kan daya ko biyu Tantancewar zaruruwa (single-yanayin ko multimode) a 155, 520 Mbit / s a zango na 1550/1310 nm. SDH multiplexers iya yi har zuwa 126 maki na lamba.

A abũbuwan amfãni daga irin wannan na'urorin ya hada tsirar, fasaha tsaro, da kariya a kan Hacking na bayanai daukar kwayar cutar.

SDH-multiplexers ne sauƙin scalable su sun hada da babban naúrar har zuwa uku ƙarin Ethernet watsa tashoshin kayayyaki E1, wayar teleho na cikin gida, da kuma tashar na PM.

Wadannan na'urori ana halin high "tenacity" cibiyar sadarwa. Aiwatar E1 yana low jitter darajar lura da wannan misali ga E1 lokacin daidaitawa gantali, da kuma gazawar a STM-1 tsarin lokaci. Interface sigogi damar saka idanu da wani kuskure a cikin sadarwar tashar , da kuma cika sharuddan sauyawa zuwa madadin tashar. Tantancewar hanya da ikon mallakan 1 + 1. Wannan shi ne, a lokacin da aiki a kan wani fiber na gani tashar, idan akwai lalacewa da na USB, dangane tsakanin biyan kuɗi da aka adana.

SDH multiplexers sauƙi a hade tare da sauran iri SDH kayan aiki. Za su iya aiki a synchronous da asynchronous halaye ne a yarda a multimode da guda-yanayin fiber. SDH multiplexer goyon bayan m sanyi da kuma gudanar da TCP / IP, 10/100 Baset yarjejeniya.

Irin wannan ya sauya sheka na'urorin da ake kullum kasu iri biyu: m, kuma ina / O. Bambanci tsakanin wadannan iri ne ba da wani ɓangare na tashoshin jiragen ruwa, da kuma a cikin jeri na na'ura a SDH cibiyar sadarwa. Terminal multiplexer kammala tara tashoshi commuting a cikinsu, wani babban yawan fitarwa tashoshi da kuma shigar. Nau'i na biyu na kida sufuri watsa tara layi a kan layi mamaye wani tsaka-tsaki matsayi. Kamar wancan ne da bayanai tributary tashoshi samu daga tara rafi ko allura a cikin shi.

Mai masana'antun sarrafa duniya multiplexers SDH type, wanda ake amfani da matsayin shigar / fitarwa m, kazalika da giciye-haši - dangane da shigar kayayyaki a su tara da kuma tributary mashigai.

A ƙarshe, mun ƙara da cewa fiber na gani multiplexers, ana samun fiye da mafi shahararsa saboda da m ci gaban irin wannan sadarwa. for fiber na gani da fasaha na nan gaba.