Chingwe chodziwika bwino cha DAC chothamanga kwambiri

Chingwe chothamanga kwambiri cha DAC(Direct Attach Cable) nthawi zambiri amamasuliridwa ngati chingwe cholunjika, chingwe cholumikizira molunjika kapena chingwe chothamanga kwambiri.Imatanthauzidwa ngati njira yolumikizira mtunda waufupi yotsika mtengo yomwe imalowetsa ma module optical.Malekezero onse a chingwe chothamanga kwambiri ali ndi ma modules Cable misonkhano, madoko osasinthika, mitu ya module ndi zingwe zamkuwa sizingalekanitsidwe, koma poyerekeza ndi zingwe za optical module yogwira ntchito (Active Optical Cables), ma module olumikizira pazingwe zothamanga kwambiri. osakhala ndi ma laser okwera mtengo ndi zida zina zamagetsi, kotero Kupulumutsa kwakukulu pamtengo ndi kugwiritsa ntchito mphamvu pakugwiritsa ntchito mtunda waufupi.Ndi maulendo apamwamba a Ethernet, cloud computing, Internet of Things, ndi malo owonetsera deta, zofunikira zambiri zayikidwa pa ogwiritsira ntchito data center.Kuthamanga kwa deta kuli kwenikweni panjira yopita ku 400G, kotero kuwonjezera pa kugwirizana mkati mwa 3-5m mu seva, DAC ingagwiritsidwenso ntchito (mamita 5-7 ayenera kugwiritsa ntchito zipangizo zotetezera zapadera kuti zikwaniritse zofunikira).Kulumikizana kupitilira mtunda uwu kumazindikiridwa ndi AOC.

10G SFP+ mpaka SFP+ High Speed Chingwe

10G SFP + ku SFP + DAC imagwiritsa ntchito chingwe cha twinaxial chosakanikirana ndikugwirizanitsa molunjika ku SFP + module, yomwe imakhala ndi kachulukidwe kakang'ono, mphamvu yochepa, yotsika mtengo, komanso yotsika kwambiri.

Ndi mitundu yanji ya zingwe za 10G SFP + kupita ku SFP + zothamanga kwambiri zomwe zilipo?

Nthawi zambiri, pali mitundu itatu ya zingwe za 10G SFP+ mpaka SFP+ zothamanga kwambiri:

10G SFP+ passive copper core high-speed cable (DAC),

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

10G SFP+ Active Optical Cable (AOC),

Ndioyenera kulumikizana ndi netiweki mkati mwa choyikapo komanso pakati pa ma rack oyandikana nawo ndipo ndiokwera mtengo kwambiri.

SFP + passive copper core chingwe chothamanga kwambiri chimapereka mawonekedwe amagetsi olunjika pakati pa malekezero awiri a chingwe chofananira, ndipo mtunda wolumikizana ukhoza kufika 12m.Komabe, chifukwa cha kulemera kwakukulu kwa chingwe ndikuganizira vuto la kukhulupirika kwa chizindikiro, kutalika kwake kwa ntchito Nthawi zambiri kumakhala pakati pa 7m ndi 10m.

40G QSFP+ kupita ku QSFP+ High Speed ​​​​Cable

Chingwe chothamanga kwambiri cha 40G (DAC) chimatanthawuza chingwe cholumikizira ndi fiber optic transceivers pamapeto onse awiri, omwe amatha kukwaniritsa kutumiza kwa data ya 40Gbps ndipo ndi njira yotsika mtengo yolumikizirana.Zingwe zodziwika bwino za 40G zimatha kugawidwa m'mitundu itatu: 40G QSFP + ku QSFP + DAC, 40GQSFP + mpaka 4 * SFP + DAC, ndi 40GQSFP + mpaka 4XFP + DAC.

40G QSFP + ku QSFP + DAC imapangidwa ndi ma transceivers awiri a 40G QSFP + ndi mawaya amkuwa.Chingwe chothamanga kwambirichi chingagwiritsidwe ntchito kuzindikira kulumikizidwa kwa madoko a 40G QSFP + omwe alipo ku 40G QSFP + madoko, nthawi zambiri mkati mwa 7m.mtunda.

40G QSFP + ku 4 × SFP + DAC imapangidwa ndi transceiver imodzi ya 40G QSFP +, waya wamkuwa wamkuwa ndi ma transceivers anayi a 10G SFP +.Mapeto amodzi ndi mawonekedwe a 40G QSFP +, omwe amakwaniritsa zofunikira za SFF-8436, ndipo mapeto ena ndi anayi a 10G SFP +., mogwirizana ndi zofunikira za SFF-8432, makamaka zomwe zimagwiritsidwa ntchito pozindikira kugwirizana pakati pa 40G ndi 10G zipangizo (NIC / HBA / CNA, kusintha zipangizo ndi seva), malinga ndi zomwe kasitomala amafuna kutalika kwa zingwe pamapeto onse awiri, nthawi zambiri mkati mwa 7m.Distance, pakadali pano ndiyotsika mtengo kwambiri komanso yosavuta kukwaniritsa kusintha kwa doko.

40G QSFP + mpaka 4XFP DAC imapangidwa ndi transceiver imodzi ya 40G QSFP +, waya wamkuwa wamkuwa ndi ma transceivers anayi a 10G XFP.Popeza XFP fiber optic transceiver ilibe muyezo wa chingwe chamkuwa cha DAC, chiwongola dzanja choperekedwa ndi chipangizocho ndi chochepa, ndipo kutayika kwa chingwecho kumakhala kwakukulu kwambiri.Itha kugwiritsidwa ntchito potumiza mtunda waufupi, nthawi zambiri pamtunda wa 2m.Chifukwa chake, chingwe chothamanga kwambirichi chingagwiritsidwe ntchito polumikizira ma 40G QSFP + madoko omwe alipo 40 XFP madoko.

25G SFP28 kupita ku SFP28 High Speed ​​​​Cable

25G SFP28 ku SFP28 DAC ikhoza kupatsa makasitomala 25G high-bandwidth data interconnection capability, mogwirizana ndi IEEE P802.3by Ethernet standard ndi SFF-8402 SFP28, ndipo imagwiritsidwa ntchito kwambiri mu data center kapena supercomputing center system scenarios

100G QSFP28 ku QSFP28 High Speed ​​Cable

100G QSFP28 ku QSFP28 DAC ikhoza kupatsa makasitomala 100G high-bandwidth data interconnection capability, kupereka njira za 4 duplex, njira iliyonse imatha kuthandizira mpaka 25Gb / s yogwira ntchito, ndipo bandwidth yophatikiza ndi 100Gb / s, mogwirizana ndi SFF-8436 mafotokozedwe, omwe amagwiritsidwa ntchito mu Kulumikizana pakati pa zida zomwe zili ndi madoko a QSFP28.

100G QSFP28 ku 4 * SFP28 High Speed ​​​​Cable

Mapeto amodzi a 100G QSFP28 mpaka 4 SFP28 DAC ndi mawonekedwe a 100G QSFP28, ndipo mapeto ena ndi 4 25G SFP28 interfaces, omwe angapereke makasitomala 100G high-bandwidth data interconnection capabilities, mogwirizana ndi SFF-8665 / SFF-8679, IEEE 802.3bj ndi InfinibandEDR miyezo, Yogwiritsidwa ntchito kwambiri mu data center kapena super computing center system scenarios.