Kev faib tawm ntawm DAC high-speed cable

DAC cable ceev ceev(Direct Attach Cable) feem ntau txhais ua cable ncaj qha, cable tooj liab txuas ncaj qha lossis cable ceev ceev. Nws yog txhais tias yog ib qho kev sib txuas luv luv uas pheej yig uas hloov cov modules optical. Ob qho kawg ntawm cov cable ceev ceev muaj cov modules Cable sib dhos, cov chaw nres nkoj tsis hloov tau, lub taub hau module thiab cov cables tooj liab tsis tuaj yeem sib cais, tab sis piv rau cov cables optical module active optical cables (Active Optical Cables), cov modules connector ntawm cov cables ceev ceev tsis muaj cov lasers optical kim thiab lwm yam khoom siv hluav taws xob, yog li kev txuag nyiaj ntau hauv kev siv nyiaj thiab kev siv hluav taws xob hauv cov ntawv thov luv luv. Nrog rau qhov ceev Ethernet siab dua, kev suav huab, Internet ntawm Yam, thiab cov chaw khaws ntaub ntawv virtual, ntau qhov yuav tsum tau muab tso rau cov neeg ua haujlwm hauv chaw khaws ntaub ntawv. Qhov ceev ntawm cov ntaub ntawv yeej nyob ntawm txoj kev mus rau 400G, yog li ntxiv rau kev sib txuas hauv 3-5m hauv lub server, DAC kuj tseem siv tau (5-7 meters xav tau siv cov ntaub ntawv insulating tshwj xeeb kom tau raws li cov yam ntxwv xav tau). Kev sib txuas dhau qhov kev ncua deb no feem ntau pom los ntawm AOC.

10G SFP+ rau SFP+ Kev Kub Ceev Cable

10G SFP+ rau SFP+ DAC siv cov kab sib dhos passive twinaxial thiab txuas ncaj qha rau SFP+ module, uas muaj qhov ceev ceev, qis zog, pheej yig, thiab qis latency.

Muaj cov cables 10G SFP+ rau SFP+ high-speed hom twg?

Feem ntau hais lus, muaj peb hom 10G SFP + rau SFP + high-speed cables:

10G SFP + passive tooj liab tub ntxhais high-speed cable (DAC),

10G SFP + Active Copper Core High Speed ​​​​Cable (ACC),

10G SFP + Active Optical Cable (AOC),

Lawv tsim nyog rau kev sib txuas network hauv lub khib thiab ntawm cov khib sib ze thiab tsim nyog tus nqi heev.

Lub SFP + passive copper core high-speed cable muab qhov hluav taws xob ncaj qha ntawm ob qho kawg ntawm cov cable sib xws, thiab qhov kev sib txuas deb tuaj yeem ncav cuag 12m. Txawm li cas los xij, vim yog qhov hnyav ntawm cov cable thiab xav txog qhov teeb meem ntawm kev ncaj ncees ntawm lub teeb liab, nws qhov ntev siv feem ntau txwv rau ntawm 7m thiab 10m.

40G QSFP + rau QSFP + Kev Kub Ceev Cable

Ib txoj hlua 40G ceev ceev (DAC) yog hais txog ib txoj hlua txuas nrog cov fiber optic transceivers ntawm ob qho kawg, uas tuaj yeem ua tiav 40Gbps cov ntaub ntawv xa mus thiab yog ib qho kev daws teeb meem kev sib txuas ceev ceev uas pheej yig. Cov hlua 40G ceev ceev uas siv ntau dua tuaj yeem muab faib ua peb hom: 40G QSFP + rau QSFP + DAC, 40GQSFP + rau 4 * SFP + DAC, thiab 40GQSFP + rau 4XFP + DAC.

40G QSFP+ mus rau QSFP+ DAC yog tsim los ntawm ob lub 40G QSFP+ optical transceivers thiab cov xov hlau tooj liab. Cov xov hlau ceev ceev no siv tau los ua kom tiav qhov kev sib txuas ntawm cov chaw nres nkoj 40G QSFP+ uas twb muaj lawm mus rau 40G QSFP+ chaw nres nkoj, feem ntau tsuas yog nyob hauv 7m. nrug.

40G QSFP+ rau 4 × SFP+ DAC yog tsim los ntawm ib qho 40G QSFP+ optical transceiver, tooj liab hlau thiab plaub 10G SFP+ optical transceivers. Ib kawg yog 40G QSFP+ interface, uas ua tau raws li qhov yuav tsum tau ua ntawm SFF-8436, thiab lwm qhov kawg yog plaub 10G SFP+ interfaces. , raws li qhov yuav tsum tau ua ntawm SFF-8432, feem ntau yog siv los ua kom pom qhov kev sib txuas ntawm 40G thiab 10G khoom siv (NIC/HBA/CNA, hloov khoom siv thiab server), raws li cov neeg siv khoom xav tau rau qhov ntev ntawm cov cables ntawm ob kawg, feem ntau tsuas yog nyob hauv 7m. Qhov deb, tam sim no yog qhov pheej yig tshaj plaws thiab yooj yim tshaj plaws los ua tiav qhov hloov pauv chaw nres nkoj hloov pauv.

Lub 40G QSFP+ rau 4XFP DAC muaj ib lub 40G QSFP+ optical transceiver, tooj liab hlau thiab plaub lub 10G XFP optical transceiver. Vim tias lub XFP fiber optic transceiver tsis muaj tus qauv DAC tooj liab cable, qhov teeb liab them los ntawm lub cuab yeej yog qis, thiab qhov poob ntawm lub cable nws tus kheej yog loj heev. Nws tsuas yog siv tau rau kev xa xov luv luv xwb, feem ntau yog nyob rau hauv qhov deb ntawm 2m. Yog li ntawd, lub cable ceev ceev no tuaj yeem siv rau Interconnects 40G QSFP+ ports uas twb muaj lawm rau 4 lub XFP ports.

25G SFP28 rau SFP28 Kev Kub Ceev Cable

25G SFP28 rau SFP28 DAC tuaj yeem muab cov neeg siv khoom nrog 25G high-bandwidth data interconnection peev xwm, raws li IEEE P802.3by Ethernet tus qauv thiab SFF-8402 SFP28, thiab yog siv dav hauv cov ntaub ntawv chaw lossis supercomputing center system scenarios.

100G QSFP28 rau QSFP28 Kev Kub Ceev Cable

100G QSFP28 rau QSFP28 DAC tuaj yeem muab cov neeg siv khoom nrog 100G high-bandwidth data interconnection peev xwm, muab 4 duplex channels, txhua channel tuaj yeem txhawb nqa txog li 25Gb / s kev ua haujlwm tus nqi, thiab qhov bandwidth sib sau ua ke yog 100Gb / s, raws li SFF-8436 specification, siv rau hauv Kev Sib Txuas ntawm cov khoom siv nrog QSFP28 chaw nres nkoj.

100G QSFP28 rau 4 * SFP28 Kev Kub Ceev Cable

Ib kawg ntawm 100G QSFP28 rau 4 SFP28 DAC yog 100G QSFP28 interface, thiab lwm qhov kawg yog 4 25G SFP28 interfaces, uas tuaj yeem muab cov neeg siv khoom nrog 100G high-bandwidth data interconnection capabilities, raws li SFF-8665 / SFF-8679, IEEE 802.3bj thiab InfinibandEDR cov qauv, Siv dav hauv cov chaw khaws ntaub ntawv lossis super computing center system scenarios.