Icala le-WDM yeDolobha laseFoshan kuya Kwezifunda
1.1.Yakha uhlelo olusha lwe-40-wave DWDM enenani lesiteshi esisodwa esingu-10Gbps
1.2.Sekela ukuvikela kokushintsha okuzenzakalelayo komzila ongu-1+1
| Cha. | Indawo | I-Max NO.of CH | CHA.ye-CH ezosatshalaliswa | Isilinganiso/CH |
| 1 | I-City-District A | 40 | 14 | 10GE |
| 2 | Idolobha-Isifunda B | 40 | 14 | 10GE |
| 3 | Idolobha-Isifunda C | 40 | 8 | 10GE |
| Isamba | --- | 32 | 10GE | |
2.1.Izidingo zesiteshi sokudlulisa:
2.1.1.Ukudluliswa kwezinsiza ze-Gigabit eziyi-14*10 ukusuka egumbini lekhompiyutha ledolobha kuya egumbini lekhompyutha laseNanhai
2.1.2, umsebenzi womzila oyinhloko, ukushintshwa komzila oyisipele≤32mms
2.1.3.I-OTU yendawo ingasetshenziselwa ukubumba isignali, ukukhulisa, nokukhipha iwashi.
2.2.Izidingo zesiteshi sokudlulisa:
2.2.1.Ukudluliswa kwezinsiza ze-Gigabit eziyi-14*10 ukusuka egumbini lekhompiyutha ledolobha kuya egumbini lekhompyutha le-Shunde
2.2.2, umsebenzi womzila oyinhloko, ukushintshwa komzila oyisipele ≤ 32mms
2.3.3.I-OTU yendawo ingasetshenziselwa ukubumba isignali, ukukhulisa, nokukhipha iwashi.
2.3.Izidingo zesiteshi sokudlulisa:
2.3.1.8*10 Izinsiza ze-Gigabit zidluliselwa kusuka ekamelweni lekhompyutha yedolobha kuya ekamelweni lekhompyutha ye-Gaoming
2.3.2.Umzila oyinhloko uyasebenza futhi enye iswishi yomzila ingu-≤32mms
2.3.3.I-OTU yendawo ingasetshenziselwa ukubumba isignali, ukukhulisa, nokukhipha iwashi.
3.1.Incazelo yohlelo
3.1.1.Uma kucatshangelwa ukunwetshwa kwamandla, iyunithi ye-wave demultiplexing yakhelwe ngokuya ngamagagasi ayi-8
3.1.2.Ukubalwa kwedatha enikeziwe yokuncishiswa kwentambo yokubona (ukulahleka koxhumano nokulahlekelwa kokufaka kufakiwe).
3.1.3.Xhumanisa ukubala kwamandla okubona:
I-Unidirectional: Amandla akhanyayo e-single-wave emojula yokubona abalwa ku-0dBm (-2～3dBm), akhuliswe yi-BA futhi ancishiswe yi-OLP, amandla angenayo e-fiber optical angu-+4dBm, ancishiswe umugqa 27dBm, OLP 2dB incishisiwe, futhi amandla angena ku-PA ngu -25dBm , Ngemva kokukhulisa i-PA 20dB, amandla egagasi elilodwa ngu-5dBm, ngemva kwe-DEMUX de-wave, amandla egagasi elilodwa ngu-10dBm, okuqinisekisiwe ukuthi angaphakathi kwebanga lokuzwela i-optical module;
Ukuhlehla: Ngemva kokubala, amandla egagasi elilodwa ekugcineni angu-10dBm, aqinisekiswa ukuthi angaphakathi kwebanga lokuzwela lemojula yokubona.
3.1.4.Ukubala kwesistimu ye-OSNR (elula): OSNR=58+4-27-1-6=28dB≥24dB, ehlangabezana nezicaciso zedizayini.
3.2.Izinzuzo Isixazululo
3.2.1.Sebenzisa i-DWDM ukuze uphindaphinde izinsizakalo ze-40 kukhebula elilodwa le-optical ukuze udlulise, okusindisa kakhulu izinsiza zekhebula elibonakalayo ngenkathi uqinisekisa umkhawulokudonsa;
3.2.2.Ukuzinza okuphezulu: Lo mklamo wesixazululo wamukela i-OLP 1+1 ukuvikelwa kwemizila emibili, isekela ukushintsha okuzenzakalelayo, futhi iqinisekisa ukuzinza kwebhizinisi;
3.2.3.Imishini ye-WDM yamukela idizayini eyi-modular, ihlukanisa esebenzayo futhi ayinyakazi, kulula ukuyikhulisa, idinga kuphela ukukhulisa ibhodi lenkonzo lapho inwetshwa, ngaphandle kokuphazamisa ibhizinisi elikhona.
3.2.4.Ibhodi le-OTU lamukela idizayini ye-3R, engabumba kabusha isiginali, ikhulise iwashi futhi iphinde ibeke isikhathi ukuze kuqinisekiswe ukuthi isiginali ayihlanekezelwe.
3.2.5.Sekela izinsizakalo ezahlukahlukene zokufinyelela i-SDH, i-PDH, i-CATV, i-Ethernet, idatha yezwi, njll., ehambisana nemishini evela kubakhiqizi abahlukene.
3.2.6.Idivayisi ihlinzeka ngogesi oyisipele oshisayo ongu-1+1, othuthukisa ukuzinza kwedivayisi
3.2.7.Iba nemisebenzi yokuphatha inethiwekhi enamandla, ekwazi ukubona ukuphathwa kwenethiwekhi okude, ibone ukuqapha kwebhizinisi kwesikhathi sangempela ku-inthanethi, futhi kube lula ukulungiswa