Kodi gawo la transceiver la fiber optical SFP limagwira ntchito bwanji?

1. Kodi gawo la transceiver ndi chiyani?

Ma module a transceiver, monga momwe dzinalo likusonyezera, ndi a mbali ziwiri, ndipo SFP ndi imodzi mwa izo. Mawu oti "transceiver" ndi kuphatikiza kwa "transmitter" ndi "receiver". Chifukwa chake, imatha kugwira ntchito ngati transmitter ndi receiver kukhazikitsa kulumikizana pakati pa zida zosiyanasiyana. Chogwirizana ndi module ndi chomwe chimatchedwa kumapeto, komwe gawo la transceiver lingaikidwe. Ma module a SFP adzafotokozedwa mwatsatanetsatane m'mitu yotsatira.
1.1 Kodi SFP ndi chiyani?

SFP ndi chidule cha Small Form-factor Pluggable. SFP ndi module yokhazikika ya transceiver. Ma module a SFP amatha kupereka kulumikizana kwa liwiro la Gbit/s pama network ndikuthandizira ulusi wa multimode ndi singlemode. Mtundu wodziwika kwambiri wa interface ndi LC. M'mawonekedwe, mitundu ya ulusi wolumikizidwa imatha kuzindikirikanso ndi mtundu wa tabu yokokera ya SFP, monga momwe zasonyezedwera pa Chithunzi B. Mphete yabuluu yokokera nthawi zambiri imatanthauza chingwe cha single-mode, ndipo mphete yokokera imatanthauza chingwe cha multi-mode. Pali mitundu itatu ya ma module a SFP omwe amagawidwa malinga ndi liwiro la kutumiza: SFP, SFP+, SFP28.
1.2 Kodi kusiyana pakati pa QSFP ndi kotani?

QSFP imayimira "Quad Form-factor Pluggable". QSFP imatha kugwira njira zinayi zosiyana. Monga SFP, ulusi wa single-mode ndi multi-mode ukhoza kulumikizidwa. Njira iliyonse imatha kutumiza mitengo ya data mpaka 1.25 Gbit/s. Chifukwa chake, kuchuluka kwa deta yonse kumatha kufika 4.3 Gbit/s. Pogwiritsa ntchito ma module a QSFP+, njira zinayi zimathanso kulumikizidwa. Chifukwa chake, kuchuluka kwa deta kumatha kufika 40 Gbit/s.