Okwangoku, kunye nophuhliso lweteknoloji yolwazi lwenethiwekhi, sinezakhono zesicelo sobugcisa obuphezulu, enye yazo kukusetyenziswai-pdh transceivers optical. Ekubeni sisebenzise i-pdh transceivers optical, ukuhanjiswa kolwazi kuye kwaphula kakhulu iintsilelo zokusasazwa kolwazi lwendabuko.

1. Intshayelelo emfutshane yezixhobo ze-PDH ze-transceiver optical

I-PDH yenethiwekhi ye-optical transceiver ithatha iisekethe ezinkulu ezidibeneyo kunye namalungelo azimeleyo epropathi yobukrelekrele, ukusebenzisa itekhnoloji yolwahlulo lwexesha, i-digital phase lock kunye ne-clock extraction technology, kunye ne-anti-interference 2M ye-interface yeteknoloji, efanelekileyo kakhulu kwizihlandlo ezineemfuno eziphezulu zokuthembeka kunye nokugqiba. imisebenzi encedisayo. Njenge: China Mobile, China Unicom, zonxibelelwano, amandla ombane, ukhuseleko loluntu, emkhosini, oohola bendlela, ngenqwelomoya kunye nolunye uthungelwano oluzinikeleyo lonxibelelwano. Inxalenye ye-hardware ithatha i-FPGA enkulu, edibanisa i-encoding, i-decoding, ukufakwa kolwazi, kunye nokutshintshwa kwe-alamu, eyenza isiphaluka sibe lula kwaye siphucule ukuthembeka komatshini wonke.

I-PDH i-transceiver optical ixuba kwaye ifake i-E1 isignali kwaye idlulisele kwi-pair of optical fibers. Umsebenzi wolawulo lwenethiwekhi ye-PDH optical transceiver iququzelela ulawulo olumanyeneyo lwezixhobo zonxibelelwano ngabasebenzisi beshishini. Ngolawulo lwenethiwekhi esembindini, imisebenzi yolawulo efana nokubeka iliso, uqwalaselo, ukusetha ngokutsha, kunye nokuphuculwa komsebenzi wezixhobo ezikude ezihambelanayo zinokugqitywa.

2. Imisebenzi ephambili kunye neempawu zePDH i-transceiver optical

Ukubonelela nge-RS232 ujongano lolawulo lwenethiwekhi, inkxaso yolawulo lomnatha olumanyeneyo; (isebenza kwi-carrier-grade NT-240D/240D+) unikezelo lwamandla amabini, i-backup eshushu yokubambisana, (esebenzayo kwi-carrier-grade NT-240D/240D+) ibonelela ngezibuko zeshishini le-4 E1, i-clock yedijithali epheleleyo yoBuyiselo kunye nobuchwepheshe besigaba esigudileyo singakhetha i-AC220V , DC48V, DC+24V, DC-24V unikezelo lwamandla ukubonelela ngokujongwa ngokupheleleyo kwe-alarm yasekhaya/yoontanga, Ukukhanya kwemibala emithathu kubonisa ukuba ixhasa i-loopback yesebe lendawo / ekude ye-E1, inikezela ngefowuni enye esemthethweni, inikezela ngeshaneli yedatha ye-RS232 ecacileyo, kwaye izinga yi-300-19.2Kbit / s eguquguqukayo.

3. Umsebenzi we-PDH optical transceiver

a. Ukuhanjiswa kwe-E1: Imveliso inokuqonda i-4-16 E1 (2Mb / s) i-fiber optical transmission.

Ukuhanjiswa kwe-b.Ethernet: ngokusebenzisa imodyuli ye-Ethernet ekhethiweyo, iziteshi ezine ze-10M / 100M eziguquguqukayo ze-Ethernet inkonzo yokuhanjiswa kwe-fiber optical inokuphunyezwa.

Umsebenzi we-c.Service: Imveliso inokuxhotyiswa ngomsebenzi wefowuni yenkonzo ukuqonda unxibelelwano lweshishini phakathi kwee-transceivers ezimbini ze-optical.

Idatha ye-d.RS232: Imveliso ibonelela ngeshaneli yedatha ye-RS232 ye-asynchronous. Ireyithi yedatha i-self-adaptive ngaphantsi kwe-115.2Kb / s, kunye nefomathi yedatha i-self-adaptive.

f.Switch quantity interface: Imveliso inokuxhotyiswa nge-relay output switch quantity interface, engasetyenziselwa i-alamu okanye ukulawula.