Kebul mai sauri na DAC(Kafar Haɗa Kai tsaye) gabaɗaya ana fassara ta a matsayin kebul kai tsaye, kebul na jan ƙarfe mai haɗa kai tsaye ko kebul mai sauri. An bayyana ta a matsayin tsarin haɗin nesa mai rahusa wanda ke maye gurbin na'urorin gani. Duk ƙarshen kebul mai sauri suna da na'urori Haɗa kebul, tashoshin jiragen ruwa marasa maye gurbinsu, kawunan na'urori da kebul na jan ƙarfe ba za a iya raba su ba, amma idan aka kwatanta da na'urar gani mai aiki (Kebulan gani masu aiki), na'urorin haɗi akan kebul masu sauri ba su da lasers masu tsada da sauran kayan lantarki, don haka babban tanadi a cikin farashi da amfani da wutar lantarki a aikace-aikacen nesa. Tare da saurin Ethernet mafi girma, ƙididdigar girgije, Intanet na Abubuwa, da cibiyoyin bayanai na kama-da-wane, an sanya ƙarin buƙatu ga masu aiki da cibiyar bayanai. Saurin bayanai a zahiri yana kan hanyar zuwa 400G, don haka ban da haɗin da ke cikin mita 3-5 a cikin sabar, ana iya amfani da DAC (mita 5-7 suna buƙatar amfani da kayan rufewa na musamman don biyan buƙatun halaye). Haɗin da ya wuce waɗannan nisan gabaɗaya AOC ne ke gane shi.
10G SFP+ zuwa SFP+ Babban Gudu Kebul
10G SFP+ zuwa SFP+ DAC yana amfani da haɗakar kebul na twinaxial mai aiki kuma yana haɗuwa kai tsaye zuwa tsarin SFP+, yana da babban yawa, ƙarancin ƙarfi, ƙarancin farashi, da ƙarancin jinkiri.
Wadanne nau'ikan kebul masu sauri na 10G SFP+ zuwa SFP+ ne ake da su?
Gabaɗaya dai, akwai nau'ikan kebul guda uku na 10G SFP+ zuwa SFP+ masu sauri:
10G SFP+ kebul mai saurin gudu na jan ƙarfe mai aiki da ƙarfi (DAC),
Kebul mai saurin gudu na 10G SFP+ na jan ƙarfe mai aiki (ACC),
Kebul na gani mai aiki na 10G SFP+ (AOC),
Sun dace da haɗin hanyar sadarwa a cikin rack da kuma tsakanin rack ɗin da ke kusa kuma suna da matuƙar araha.
Kebul ɗin SFP+ mai saurin gudu na jan ƙarfe yana ba da hanyar sadarwa ta lantarki kai tsaye tsakanin ƙarshen kebul ɗin da ya dace, kuma nisan haɗin zai iya kaiwa mita 12. Duk da haka, saboda nauyin kebul ɗin da kuma la'akari da matsalar ingancin sigina, tsawon amfaninsa gabaɗaya yana iyakance zuwa tsakanin mita 7 zuwa 10.
Kebul mai sauri mai sauri na 40G QSFP+ zuwa QSFP+
Kebul mai sauri na 40G (DAC) yana nufin kebul mai haɗawa tare da na'urorin watsa bayanai na fiber optic a ƙarshen biyu, wanda zai iya cimma watsa bayanai na 40Gbps kuma mafita ce mai inganci wajen haɗa bayanai cikin sauri. Ana iya raba kebul mai sauri na 40G da aka fi sani zuwa nau'i uku: 40G QSFP+ zuwa QSFP+DAC, 40GQSFP+ zuwa 4*SFP+DAC, da 40GQSFP+ zuwa 4XFP+DAC.
40G QSFP+ zuwa QSFP+ DAC ya ƙunshi na'urori masu karɓar haske guda biyu na 40G QSFP+ da kuma wayoyin jan ƙarfe. Ana iya amfani da wannan kebul mai sauri don haɗa tashoshin 40G QSFP+ da ke akwai zuwa tashoshin 40G QSFP+, gabaɗaya cikin nisan mita 7 ne kawai.
40G QSFP+ zuwa 4×SFP+ DAC ya ƙunshi na'urar transceiver na gani guda ɗaya ta 40G QSFP+, wayar jan ƙarfe da kuma na'urorin transceiver na gani guda huɗu ta 10G SFP+. Ɗayan ƙarshen shine na'urar 40G QSFP+, wanda ya cika buƙatun SFF-8436, ɗayan kuma shine na'urorin haɗin 10G SFP+ guda huɗu. , daidai da buƙatun SFF-8432, galibi ana amfani da su don cimma haɗin kai tsakanin kayan aikin 40G da 10G (NIC/HBA/CNA, kayan aikin switch da sabar), bisa ga buƙatun abokin ciniki na tsawon kebul a ƙarshen biyu, gabaɗaya cikin mita 7 kawai. Nisa, a halin yanzu ita ce mafi arha kuma mafi sauƙi don cimma canjin tashar switch.
Na'urar DAC ta 40G QSFP+ zuwa 4XFP ta ƙunshi na'urar transceiver mai amfani da hasken 40G QSFP+ guda ɗaya, wayar jan ƙarfe da kuma na'urorin transceiver mai amfani da hasken 10G XFP guda huɗu. Tunda na'urar transceiver mai amfani da hasken XFP ba ta da ma'aunin kebul na jan ƙarfe na DAC, diyya ta siginar da na'urar ke bayarwa ba ta da yawa, kuma asarar kebul ɗin kanta tana da girma sosai. Ana iya amfani da ita ne kawai don watsawa ta ɗan gajeren lokaci, gabaɗaya a cikin nisan mita 2. Saboda haka, ana iya amfani da wannan kebul mai sauri don haɗa tashoshin 40G QSFP+ da ke akwai zuwa tashoshin XFP guda huɗu.
Kebul mai sauri mai girma na 25G SFP28 zuwa SFP28
25G SFP28 zuwa SFP28 DAC na iya samar wa abokan ciniki damar haɗa bayanai masu girman bandwidth 25G, daidai da daidaitaccen IEEE P802.3by Ethernet da SFF-8402 SFP28, kuma ana amfani da shi sosai a cikin yanayin cibiyar bayanai ko tsarin cibiyar supercomputing.
Kebul mai sauri mai sauri na 100G QSFP28 zuwa QSFP28
100G QSFP28 zuwa QSFP28 DAC na iya samar wa abokan ciniki damar haɗa bayanai masu girman bandwidth 100G, suna samar da tashoshi guda 4 masu duplex, kowace tashar na iya tallafawa har zuwa 25Gb/s, kuma bandwidth ɗin tarawa shine 100Gb/s, daidai da ƙayyadaddun SFF-8436, wanda ake amfani da shi a cikin Haɗi tsakanin na'urori tare da tashoshin QSFP28.
Kebul mai sauri mai sauri na 100G QSFP28 zuwa 4*SFP28
Ɗaya daga cikin ƙarshen 100G QSFP28 zuwa 4 SFP28 DAC shine hanyar sadarwa ta 100G QSFP28, ɗayan kuma shine hanyar sadarwa ta 25G SFP28 guda 4, wanda zai iya samar wa abokan ciniki damar haɗin bayanai mai girman bandwidth 100G, daidai da ƙa'idodin SFF-8665/SFF-8679, IEEE 802.3bj da InfinibandEDR, Ana amfani da shi sosai a cikin yanayin tsarin cibiyar bayanai ko tsarin cibiyar kwamfuta mai ƙarfi.
Lokacin Saƙo: Oktoba-18-2022