AOC Cablevs DAC Cable: Wanne yafi muku

1. Menene DAC da AOC Cables Suke Gaba ɗaya?
Dukansu DAC da AOC sune mafita na cabling na yau da kullun don sadarwar bayanai kuma galibi ana amfani da su don haɗin kai mai sauri, babban abin dogaro da watsawa da ake buƙata ta cibiyoyin bayanai, kwamfutoci masu ƙarfi, da manyan na'urorin ajiya masu ƙarfi.Dukkanin iyakarsu biyu suna da majalissar igiyoyi tare da ma'aikatu da masana'anta suka ƙare, waɗanda aka haɗa su da kafaffen tashar jiragen ruwa kawai.Bayan haka, ana iya kera kebul na DAC da AOC a tsayi daban-daban don tallafawa ƙimar bayanan watsa daban-daban, kamar kebul na 10G SFP DAC/AOC, kebul na 25G AOC, kebul na 40G DAC, da kebul na 100G AOC.

2. Ribobi da Fursunoni na DAC Cable

Ribobi na Direct Haɗa Cable Copper

Ƙarin Tasiri- Gabaɗaya magana, farashin igiyoyin jan ƙarfe yana da ƙasa da na filaye masu gani.Kudin igiyoyin jan ƙarfe masu wucewa shine sau 2 zuwa 5 mai rahusa fiye da igiyoyin fiber na tsayi iri ɗaya.Sabili da haka, amfani da igiyoyi masu sauri zai kuma rage farashin cajin dukkanin cibiyar bayanai.

Ƙarƙashin Ƙarfafa Ƙarfin Ƙarfafa - DAC mai saurin sauri (kebul na haɗa kai tsaye) yana cinye ƙananan wuta (yawan wutar lantarki kusan sifili) tun da igiyoyi masu wucewa ba sa buƙatar wutar lantarki.Yawan wutar lantarki na igiyoyin jan ƙarfe mai aiki gabaɗaya yana kusa da 440mW.Idan kayi amfani da igiyoyin jan ƙarfe kai tsaye maimakon igiyoyin fiber na AOC, zaku iya adana ɗaruruwan dubban kilowatts na wutar lantarki.

Ya fi ɗorewa-An ƙera shi tare da nau'in haɗin kai maras kyau na ƙirar gani da kebul na gani, wanda ke rage farashin kuma yana tabbatar da cewa tashar tashar tashar ba ta fallasa ƙura da sauran gurɓatacce.Don haka, DAC ba ta da saurin lalacewa.

 Fursunoni na Direct Haɗa Cable Copper

Ɗaya daga cikin rashin amfani da kebul na DAC shine cewa ya fi AOCs nauyi da girma.Bugu da ƙari, ya fi sauƙi ga tasirin kutsawa na lantarki da attenuation a kan dogon nisa saboda siginar lantarki da ake yadawa tsakanin iyakar biyu.

3. Ribobi da Fursunoni na AOC Cable

Abubuwan da aka bayar na AOC

Maɗaukaki mai sauƙi - Kebul na gani mai aiki yana kunshe da transceivers biyu na gani da kebul na fiber optic patch, wanda nauyinsa kashi ɗaya kawai cikin huɗu na kebul na jan ƙarfe kai tsaye, kuma yawancin shine kusan rabin na USB na jan karfe.

Nisa mai tsayi-Fiber AOC na iya samar da isar da ya fi girma da tsayi har zuwa 100-300m saboda mafi kyawun yanayin zafi a cikin tsarin wayoyi na ɗakin kwamfuta da ƙaramin lanƙwasa radius na USB na gani.

Ƙarin Amintacce- Kebul na gani mai aiki ba shi da rauni ga tsangwama na lantarki tun da fiber na gani nau'in dielectric ne wanda zai iya ɗaukar filin lantarki a tsaye a cikinsa.Kuskuren bit na aikin watsa samfurin shima ya fi kyau, kuma BER na iya kaiwa 10^-15.

Farashin AOC

Babban lahani na igiyoyin fiber masu aiki na AOC shine cewa shine mafi tsadar haɗin haɗin kebul don ma'aikatan cibiyar bayanai masu yawa.Bayan haka, AOCs ba su da ɗorewa idan ba a sarrafa su yadda ya kamata tunda sun fi sauƙi kuma ɓangarorin AOC sun fi sauƙi kuma sun fi sauƙi wanda ke sa su fi sauƙi ga lalacewa idan ba a kula da su daidai ba.

4. Yaushe kuke amfani da igiyoyin AOC?

Duk da haka, nisan watsawa tsakanin ToRs da na'urori masu sauyawa yawanci ƙasa da 100m, inda ake tura da'irori masu haɗaka da yawa.Saboda haka, kebul na gani mai aiki shine mafi kyawun maganin cabling don haɗin bayanai saboda cancantar nauyinsa mai nauyi, ƙaramin diamita na waya, da kuma kula da cabling.Tunda cibiyar bayanai tana da ƙayyadaddun ƙayyadaddun bayanai akan watsa sigina, kebul na gani mai aiki ya fi tagwaye DAC kebul na tagwaye a cikin amincin sigina da ƙirar haɗaɗɗiyar gani, yana rage kurakurai a sarrafa siginar.Bugu da ƙari kuma, ana sarrafa siginar EMI mai girma a cikin na'urorin gani na gani, AOC fiber USB yana da mafi kyawun aikin EMI fiye da kebul na DAC.Babu shakka, kebul na AOC shine zaɓinku na farko a cikin haɗin kai tsakanin maɓalli da maɓalli a cikin gajeriyar isar da matsakaici ko matsakaici.

5. Yaushe kuke Amfani da igiyoyin DAC?

Dangane da ƙirar masana'anta da Facebook ya sanar, sabar da Top-of-Rack switches (ToR) sune ainihin rukunin cibiyar bayanai.Gabaɗaya magana, nisa tsakanin ToR da uwar garken NIC(Katin Interface Card) bai wuce mita 5 ba.A wannan yanayin, kebul na DAC ya fi fa'ida fiye da igiyoyin AOC dangane da farashi, amfani da wutar lantarki, da watsawar zafi.Don haka, DAC zaɓi ne da aka fi so don tsarin haɗin kai na IDC.Bayan haka, a wasu lokatai na musamman, 100G QSFP28 zuwa 4*SFP28 DAC madadin haɗin kai tsaye ne bisa takamaiman buƙatar mai amfani don haɗin bayanan.