Njengamanje, ngokuthuthukiswa kobuchwepheshe bolwazi lwenethiwekhi, sinamakhono okufaka isicelo athuthuke kakhulu, elinye lawo ukusetshenziswa kwepdh optical transceivers. Njengoba sisebenzise ama-pdh optical transceivers, ukudluliswa kolwazi kuphule kakhulu ukushiyeka kokudluliswa kolwazi lwendabuko.

1. Ukwethulwa kafushane kwemishini ye-PDH ye-transceiver optical

I-PDH network transceiver optical yamukela amasekethe amakhulu ahlanganisiwe anamalungelo azimele empahla yengqondo, isebenzisa ubuchwepheshe bokuhlukanisa isikhathi sokuhlukanisa, ukukhiya kwesigaba sedijithali kanye nobuchwepheshe bokukhipha iwashi, kanye nobuchwepheshe bokusebenzisana be-2M obuphikisana nokuphazanyiswa, obufaneleka ngokukhethekile izikhathi ezinezidingo ezithembekile neziphelele. imisebenzi eyisizayo. Okufana nalokhu: i-China Mobile, i-China Unicom, ezokuxhumana, amandla kagesi, ukuphepha komphakathi, amasosha, imigwaqo emikhulu, izindiza kanye namanye amanethiwekhi okuxhumana azinikele. Ingxenye ye-Hardware yamukela i-FPGA enkulu, ehlanganisa ukubhala ngekhodi, ukucacisa, ukufakwa kolwazi, nokushintshwa kwe-alamu, okwenza umjikelezo ube lula futhi uthuthukise ukwethembeka kwawo wonke umshini.

I-PDH i-optical transceiver ixuba bese ibhala isignali ye-E1 futhi iyidlulisele kuma-optical fibers. Umsebenzi wokuphathwa kwenethiwekhi ye-PDH optical transceiver wenza kube lula ukuphathwa okuhlangene kwemishini yokuxhumana ngabasebenzisi bemboni. Ngokuphathwa kwenethiwekhi emaphakathi, imisebenzi yokuphatha efana nokuqapha, ukumisa, ukusetha kabusha, kanye nokuthuthukiswa komsebenzi wezisetshenziswa ezikude ezihambisanayo zingaqedwa.

2. Imisebenzi esemqoka nezici ze-PDH optical transceiver

Nikeza isixhumi esibonakalayo sokuphathwa kwenethiwekhi ye-RS232, sekela ukuphathwa kwenethiwekhi okuhlanganisiwe; (isebenza esigabeni senkampani yenethiwekhi i-NT-240D/240D+) ugesi okabili, ikhophi yasenqolobaneni eshisayo, (isebenza ebangeni lenkampani yenethiwekhi i-NT-240D/240D+) inikeza izimbobo zebhizinisi ezingu-4 E1, Ukubuyiswa kwewashi ledijithali eligcwele kanye nobuchwepheshe bokukhiya isigaba obushelelezi bungakhetha i-AC220V , DC48V, DC+24V, DC-24V ugesi ukuze unikeze ukuqapha okuphelele kwe-alamu yokuphela kontanga, Ukukhanya kwemibala emithathu kubonisa ukuthi kusekela i-loopback yegatsha le-E1 lendawo/ekude, ihlinzeka ngocingo olulodwa olusemthethweni, ihlinzeka ngeshaneli yedatha ekhanyelayo ye-RS232, futhi izinga lingu-300-19.2Kbit/s.

3. Umsebenzi we-PDH optical transceiver

a. Ukudluliswa kwe-E1: Umkhiqizo ungathola i-4-16 E1 (2Mb/s) ukudluliselwa kwe-fiber optical.

Ukudluliswa kwe-b.Ethernet: ngemojula ye-Ethernet ozikhethela yona, iziteshi ezine ze-10M/100M eziguquguqukayo ze-Ethernet service optical fiber transmission zingatholakala.

c.Umsebenzi wesevisi: Umkhiqizo ungahlonyiswa ngokusebenza kwefoni yesevisi ukuze ubone ukuxhumana kwebhizinisi phakathi kwama-transceivers optical amabili.

Idatha ye-d.RS232: Umkhiqizo uhlinzeka ngeshaneli yedatha ye-RS232 asynchronous. Izinga ledatha liyakwazi ukuzivumelanisa nezimo lingaphansi kuka-115.2Kb/s, futhi ifomethi yedatha iyazivumelanisa nezimo.

f.Switch quantity interface: Umkhiqizo ungahlonyiswa ngesixhumi esibonakalayo sokushintsha inani le-relay, esingasetshenziselwa i-alamu noma ukulawula.