Thaum nws los txog rau kev ntim cov khoom siv kho qhov muag, cov ntim khoom siv feem ntau yog SFP thiab SFP +. Dab tsi yog cov kev xaiv ntim rau optical modules. Raws li hom ntim, optical modules feem ntau muab faib ua SFP, SFP +, thiab XFP. Qhov txawv ntawm lawv yog dab tsi?
SFP transceivers kuj muab cov tooj liab cable sib txuas, tso cai rau cov tswv cuab feem ntau tsim los rau kev sib txuas lus fiber ntau los sib txuas lus los ntawm UTP network cables. Tseem muaj wavelength division multiplexing (CWDM) thiab ib leeg fiber ntau bidirectional (1310/1490 nanometer wavelength uplink/downlink) SFPs. Kev lag luam SFP transceivers tuaj yeem muab ceev txog 4.25 G bps. Ob peb daim ntawv ntim ntawm 10 Gbps transceivers yog XFP, nrog rau qhov hloov tshiab "SFP +" uas yog qhov pib zoo ib yam li SFP ntim.
GBIC (cov ntawv luv rau Gigabit Interface Converter) yog ib qho khoom siv sib txuas uas hloov cov teeb liab gigabit hluav taws xob rau hauv cov teeb liab kho qhov muag. GBIC tsim tuaj yeem siv rau kev sib pauv kub. GBIC yog ib qho khoom sib hloov uas ua tau raws li cov qauv thoob ntiaj teb. Gigabit keyboards tsim nrog GBIC interfaces muaj kev lag luam tseem ceeb vim lawv hloov pauv hloov tau yooj yim. SFP (Small Form factor Pluggable) tuaj yeem nkag siab yooj yim raws li kev hloov kho tshiab ntawm GBIC.
SFP txhawb nqa SONET, Gigabit Ethernet, Fiber Channel, thiab qee cov qauv kev sib txuas lus. Tus qauv no txuas mus rau SFP + thiab txhawb nqa tus nqi sib kis ntawm 10.0 Gbit / s, suav nrog 8 gigabit fiber ntau channel thiab 10GbE. SFP + module versions nrog fiber ntau optic thiab tooj liab core versions tau qhia. Piv nrog rau Xenpak, X2, lossis XFP versions ntawm lub module, SFP + module khaws qee qhov kev siv ntawm lub motherboard es tsis yog nyob rau hauv lub module.
10G module tau dhau los ntawm kev txhim kho ntawm 300Pin, XENPAK, X2, XFP, thiab thaum kawg tau ua tiav qhov kev xa tawm ntawm 10G cov cim nrog qhov loj tib yam li SFP, uas yog SFP +. SFP, nrog nws qhov zoo ntawm miniaturization thiab tus nqi qis, ua tau raws li qhov kev thov rau high-density optical modules hauv cov khoom siv. Txij li thaum nws cov qauv tsim tawm hauv xyoo 2002, nws tau hloov XFP ua lub hauv paus hauv kev lag luam 10G los ntawm 2010.
Qhov zoo ntawm SFP + optical modules:
1. SFP + muaj qhov loj me ntawm sab nrauv ntau dua li X2 thiab XFP ntim (qhov loj tib yam li SFP);
2. tuaj yeem txuas ncaj qha rau XFP, X2, XENPAK ntawm tib hom;
3. Tus nqi qis dua XFP, X2, XENPAK cov khoom.
Qhov txawv ntawm SFP + thiab SFP:
1. Qhov loj me ntawm SFP thiab SFP + yog tib yam;
2. SFP raws tu qauv specifications: IEEE802.3, SFF-8472
Qhov txawv ntawm SFP + thiab XFP:
1. SFP + thiab XFP yog ob qho tib si 10G fiber optic modules thiab tuaj yeem sib txuas lus nrog lwm hom 10G modules;
2. SFP + muaj qhov pom me me dua li XFP;
3. Vim nws qhov me me, SFP + tau txav lub teeb liab kev ua haujlwm, serial / deserializer, MAC, moos thiab cov ntaub ntawv rov qab (CDR), nrog rau kev them nyiaj hluav taws xob dispersion (EDC) muaj nuj nqi los ntawm module rau daim npav motherboard;
4. XFP ua raws li cov txheej txheem hauv qab no: XFP MSA raws tu qauv;
5. SFP+ ua raws li IEEE 802.3ae, SFF-8431, SFF-8432 raws tu qauv;
6. SFP + yog ib qho tseem ceeb tshaj plaws tsim.
7. SFP + raws tu qauv specifications: IEEE 802.3ae, SFF-8431, SFF-8432.
