I-Module ye-SFP iqukethe i-optical device, isiphaluka esisebenzayo kunye ne-interface ebonakalayo.Isixhobo sokubona siquka iinxalenye ezithumelayo kunye nokwamkela.
Inxalenye yokuhambisa yile: igalelo lenqanaba elithile lekhowudi yeempawu zombane, ngokusebenzisa inkqubo yangaphakathi yomqhubi we-chip, ukuqhuba i-semiconductor laser (LD) ye-diode ekhupha ukukhanya (i-LED) ukuthumela ikhowudi ehambelanayo yokulinganisa umqondiso we-optical, ukukhanya kwangaphakathi inikwe isekethe yolawulo lonikezelo lwamandla oluzenzekelayo.Amandla ophawu lwemveliso ye-optical ahlala ezinzileyo.
Inxalenye efunyenweyo yile: imodyuli ye-optical input module yezinga elithile lekhowudi liguqulwa libe ngumqondiso wombane ngokusebenzisa i-optical discovery diode.Emva kwe-preamplifer, isignali yemveliso yezinga le-bit elihambelanayo linqanaba le-PECL.Xa igalelo lamandla optical lingaphantsi kwexabiso elithile, isignali ye-alamu yenziwa.
Iiparamitha kunye nentsingiselo yeemodyuli ze-optical
Iimodyuli ze-Optical zazinayo nayiphi na imilinganiselo ebalulekileyo ye-optical yobugcisa.Nangona kunjalo, kwi-GBIC kunye ne-SFP hot-plug SFP Modules, kufuneka uhlawule ingqalelo kwezi parameters zintathu zilandelayo.
Ngokusekwe kwi-nanometer(nm), kukho iindidi ezintathu eziphambili ngoku.
I-850nm (MM, i-multi-mode, ixabiso eliphantsi kodwa umgama omfutshane wokuhambisa, ngokubanzi kuphela i-500M).
I-1310nm (i-SM, i-Mode eyodwa, ilahleko encinci yokudluliselwa, ukusabalalisa okukhulu, ngokuqhelekileyo kusetyenziselwa ukuhanjiswa komgama omde ngaphezu kwe-40KM, akukho ukuhanjiswa kunokuhambisa ngokuthe ngqo i-120KM).
I-1550nm (i-SM, i-Mode eyodwa, ilahleko encinci yokudluliselwa, ukusabalalisa okukhulu, ngokuqhelekileyo kusetyenziselwa ukuhanjiswa komgama omde ngaphezu kwe-40KM, akukho phinda udlulise ngokuthe ngqo kwi-120KM).
Inqanaba loThutho
Amanani amasuntswana (BPS) edatha ethunyelwa ngesekhondi.
Okwangoku.Kukho iiModyuli ezine ze-SFP ezisetyenziswa ngokuqhelekileyo.155Mbps, 1.25Gbps, 2.5Gbps, 10Gbps njalo njalo.Ireyithi yotshintshiselwano idla ngokuhambelana nomva.Ngoko ke, iModyuli ye-155M ye-SFP ikwabizwa ngokuba yi-FE (100Mbit / s) iModyuli ye-SFP, kunye ne-1.25G SFP Module ikwabizwa ngokuba yi-GE (Gigabit) imodyuli ye-optical.
Le yi-SFP esetyenziswa kakhulu kwisixhobo sokuhanjiswa kwe-optical.Ukongezelela, amazinga okuhanjiswa kwayo kwiinkqubo zokugcina i-fiber optic (i-SAN) yi-2Gbps, i-4Gbps, kunye ne-8Gbps.
Umgama wothumelo
Isignali ye-Optical ayifuni ukuba idluliselwe kumgama apho inokuhanjiswa ngokuthe ngqo.Ngeekhilomitha (ekwabizwa ngokuba ziikhilomitha, KM).Ukucaciswa kweeModyuli ze-SFP zimi ngolu hlobo lulandelayo: I-Multi-Mode 550M, i-Single-Mode 15KM, 40KM, 80KM, kunye ne-120KM, njl.