Umahluko phakathi kweemodyuli ezine ze-100G QSFP28 optical

1. Iindlela ezahlukeneyo zokudlulisela

Imodyuli ye-optical ye-100G QSFP28 SR4 kunye nemodyuli ye-optical ye-100G QSFP28 PSM4 zombini zamkela ujongano lwe-MTP oluneziteshi ezili-12, kwaye zifezekisa ukuhanjiswa kwe-100G ye-optical fiber enamachaneli asi-8 ngaxeshanye.

I-100G QSFP28 LR4 optical module kunye ne-100G QSFP28 CWDM4 optical module zisebenzisa iindlela ezi-4 ezizimeleyo ze-wavelength zokudlulisela i-100G, kwaye zisebenzisa itekhnoloji ye-wavelength division multiplexing ukuphindaphinda imiqondiso ye-wavelength ezine kwi-fiber optical ye-single-mode ukuze zidluliswe.

2. Umgama ophakathi wokudlulisela kunye nomgama wokudlulisela wahlukile

Umgama wokudluliselwa kwe-100G QSFP28 SR4 optical module, i-100G QSFP28 LR4 optical module, i-100G QSFP28 PSM4 optical module kunye ne-100G QSFP28 CWDM4 optical module zahlukile.

I-100G QSFP28 SR4 optical module idla ngokusetyenziswa kunye ne-MTP multi-mode fiber. Xa isetyenziswa ne-OM3 fiber, umgama wokudlulisela ungafikelela kwi-70m, kwaye xa isetyenziswa ne-OM4 fiber, umgama wokudlulisela ungafikelela kwi-100m.

I-100G QSFP28 LR4 optical module idla ngokusetyenziswa kunye ne-LC duplex single-mode fiber, kwaye umgama wokudlulisela ungafikelela kwi-10km.

I-100G QSFP28 PSM4 optical module idla ngokusetyenziswa kunye ne-MTP single-mode fiber, kwaye umgama wokudlulisela ungafikelela kwi-500m.

I-100G QSFP28 CWDM4 optical module idla ngokusetyenziswa kunye ne-LC duplex single-mode fiber, kwaye umgama wokudlulisela ungafikelela kwi-2km.

3. Ulwakhiwo lweentambo ezahlukeneyo

Ulwakhiwo lwentambo ye-100G QSFP28 SR4 optical module kunye ne-100G QSFP28 PSM4 optical module ziyafana, kwaye zombini zifuna isakhiwo sentambo ye-multi-fiber esekelwe kwi-interface ye-12-way MMF MTP. Umahluko kukuba i-100G QSFP28 PSM4 optical module kufuneka isebenze kwi-single-mode fiber. I-100G QSFP28 SR4 optical module ikwi-multi-mode fiber.

Kwaye iimodyuli ze-optical ze-100G QSFP28 LR4 kunye neemodyuli ze-optical ze-100G QSFP28 CWDM4 zihlala zisetyenziswa kunye neentambo ze-LC duplex single-mode fiber patch, kusetyenziswa isakhiwo sentambo ye-dual-pass dual-fiber SMF.

4. Umgaqo wokusebenza wahlukile

Umgaqo osebenzayo we-100G QSFP28 SR4 optical module kunye ne-100G QSFP28 PSM4 optical module ziyafana. Xa kuthunyelwa imiqondiso kwisiphelo sokudlulisa, imiqondiso yombane iguqulwa ibe yimiqondiso ye-optical yi-laser array, ize idluliselwe ngaxeshanye kwi-optical fiber. Xa ifikelela kwisiphelo sokwamkela, i-photodetector array iguqula imiqondiso ye-optical ehambelanayo ibe yimiqondiso yombane ehambelanayo, ngaphandle kokuba eyokuqala ikwi-fiber ye-multi-mode kwaye eyokugqibela ikwi-fiber ye-single-mode.

Umgaqo osebenzayo we-100G QSFP28 LR4 optical module kunye ne-100G QSFP28 CWDM4 optical module ziyafana. Zombini ziguqula imiqondiso yombane eyi-4 25Gbps ibe yimiqondiso yombane eyi-4 LAN WDM, zize emva koko ziphindaphindwe zibe yitshaneli enye ukuze kufezekiswe uthumelo lwe-100G optical. Kwicala lokwamkela, imodyuli isusa i-100G optical input ibe yimiqondiso yombane eyi-4 LAN WDM, ize emva koko iziguqule zibe yiziteshi zokukhupha imiqondiso yombane ezi-4.

Ukukhethwa kwesicelo se-100G QSFP28 optical module

Phantsi kwenethiwekhi ye-100G, indlela yokukhetha imodyuli efanelekileyo ye-100G QSFP28 inokuqwalaselwa kwezi zinto zintathu zilandelayo:

1. Iintambo ze-fiber optic ze-Multimode phakathi kweeswitshi: 5-100m

Imodyuli yokujonga ye-100G QSFP28 SR4 ekhethwayo, esebenzisa i-interface ye-MTP (ii-cores ezi-8), umgama wokudlulisela xa usetyenziswa ne-OM3 multimode fiber yi-70m, kwaye xa isetyenziswa ne-OM4 multimode fiber, umgama wokudlulisela yi-100m, efanelekileyo yokudlulisela umgama omfutshane (Umgama ungaphantsi kweemitha ezili-100) kwinethiwekhi ye-100G.

2. Ucingo lwefayibha yemowudi enye phakathi kweeswitshi: >100m-2km

Ungakhetha i-100G QSFP28 PSM4 optical module okanye i-100G QSFP28 CWDM4 optical module, zombini ezi zilungele iinethiwekhi ze-100G eziphakathi nezimfutshane. I-100G QSFP28 PSM4 optical module isebenzisa iifayibha ze-optical ze-single-mode ezi-8 ezihambelanayo kunye, kwaye umgama wokudlulisela umalunga neemitha ezingama-500; i-100G QSFP28 CWDM4 optical module isetyenziswa kunye nefayibha ye-optical ye-single-mode, kwaye umgama wokudlulisela unokufikelela kwi-2 km.

3. Ifayibha yemowudi enye yemowudi ende: ≤10km

 Ungakhetha i-100G QSFP28 LR4 optical module, isebenzisa i-duplex LC interface, umgama wokudlulisela ungafikelela kwi-10km xa isetyenziswa nefayibha yemowudi enye, efanelekileyo kwinethiwekhi ye-100G ekude (umgama ungaphezulu kweekhilomitha ezi-2 kwaye ungaphantsi kweekhilomitha ezili-10).

I-HUANET inokubonelela ngazo zonke ezi modules ze-optical ze-100G QSFP28 ngexabiso elikhuphisanayo, wamkelekile ukusithumelela umbuzo.