Pakali pano, ndi chitukuko cha umisiri zambiri maukonde, tili patsogolo luso luso luso, mmodzi wa amene ntchitopdh optical transceivers. Popeza tagwiritsa ntchito pdh optical transceivers, kutumiza zidziwitso kwaphwanya kwambiri zofooka zapanthawi yofalitsa uthenga.

1. Kufotokozera mwachidule kwa PDH optical transceiver zipangizo

PDH network Optical transceiver imagwiritsa ntchito mabwalo akuluakulu ophatikizika okhala ndi ufulu wodziyimira pawokha, kugwiritsa ntchito ukadaulo wogawa nthawi yayitali, loko ya digito ndi ukadaulo wochotsa wotchi, komanso ukadaulo wotsutsana ndi kusokoneza kwa 2M, womwe ndi woyenera makamaka pazochitika zomwe zili ndi zofunika kudalirika komanso kukwanira. ntchito zothandizira. Monga: China Mobile, China Unicom, telecommunication, mphamvu yamagetsi, chitetezo cha anthu, asilikali, misewu ikuluikulu, ndege ndi maukonde ena odzipereka olankhulana. Gawo la Hardware limatenga FPGA yayikulu, yomwe imaphatikiza ma encoding, decoding, kuyika chidziwitso, ndikusintha ma alarm, zomwe zimapangitsa kuti dera likhale losavuta komanso limapangitsa kudalirika kwa makina onse.

PDH optical transceiver imasakaniza ndikuyika chizindikiro cha E1 ndikuchitumiza pazingwe ziwiri za kuwala. PDH optical transceiver network management function imathandizira kasamalidwe kogwirizana ka zida zoyankhulirana ndi ogwiritsa ntchito makampani. Kupyolera mu kayendetsedwe ka maukonde apakati, ntchito zoyang'anira monga kuyang'anira, kusinthika, kukonzanso, ndi kukonzanso ntchito kwa zipangizo zakutali zomwe zimagwirizana zimatha kumaliza.

2. Ntchito zazikulu ndi mawonekedwe a PDH optical transceiver

Perekani mawonekedwe a kasamalidwe ka maukonde a RS232, thandizirani kasamalidwe ka maukonde ogwirizana; (yogwirizana ndi NT-240D/240D+) yamagetsi apawiri, zosunga zobwezeretsera zotentha, (zogwiritsidwa ntchito ndi NT-240D/240D+) zimapereka madoko 4 abizinesi a 4 E1, Kubwezeretsa koloko ya digito ndi ukadaulo wotsekera gawo lingasankhe AC220V , DC48V, DC+24V, DC-24V magetsi kuti apereke kuwunika kwathunthu kwa ma alarm am'deralo / anzawo, Kuwala kwamitundu itatu kumasonyeza kuti kumathandizira ofesi ya nthambi ya E1 / yakutali, imapereka foni imodzi yovomerezeka, imapereka njira yowonekera ya data ya RS232, ndipo mlingo wake ndi 300-19.2Kbit / s.

3. PDH optical transceiver ntchito

a. E1 kufala: mankhwala akhoza kuzindikira 4-16 E1 (2Mb/s) kuwala CHIKWANGWANI kufala.

b.Efaneti kufala: kudzera posankha Efaneti gawo, njira zinayi za 10M/100M adaptive Efaneti utumiki kuwala CHIKWANGWANI kufala akhoza anazindikira.

c.Service ntchito: Chogulitsacho chikhoza kukhala ndi ntchito ya telefoni yautumiki kuti izindikire kuyankhulana kwa bizinesi pakati pa ma transceivers awiri optical.

d.RS232 data: Chogulitsacho chimapereka njira ya data ya RS232 asynchronous. Kuchuluka kwa deta kumasinthasintha pawokha pansi pa 115.2Kb/s, ndipo mawonekedwe a data amadzisintha okha.

f.Switch kuchuluka kwa mawonekedwe: Chogulitsacho chikhoza kukhala ndi mawonekedwe a relay output switch kuchuluka, omwe angagwiritsidwe ntchito alamu kapena kuwongolera.