Taura tere-teitei DACKo te tikanga whānui o te whakamaoritanga o te (Direct Attach Cable) ko te taura tika, te taura parahi hono-tika, te taura tere-teitei rānei. E whakamāramahia ana ko te kaupapa hononga tawhiti-poto iti te utu e whakakapi ana i ngā kōwae whatu. E rua ngā pito o te taura tere-teitei he kōwae. Kāore e taea te wehewehe i ngā huihuinga taura, ngā tauranga kore-whakakapinga, ngā pane kōwae me ngā taura parahi, engari ki te whakatauritea ki ngā taura whatu hohe kōwae whatu (Active Optical Cables), kāore he taiaho whatu utu nui me ētahi atu wāhanga hiko o ngā kōwae hononga i runga i ngā taura tere-teitei, nō reira he nui te penapena i te utu me te whakapaunga hiko i roto i ngā tono tawhiti-poto. Me ngā tere Ethernet teitei ake, te rorohiko kapua, te Ipurangi o ngā Mea, me ngā pokapū raraunga mariko, kua nui ake ngā whakaritenga kua whakatakotoria ki ngā kaiwhakahaere pokapū raraunga. Kei te haere tonu te tere raraunga ki te 400G, nō reira hei tāpiri atu ki te hononga i roto i te 3-5m i roto i te tūmau, ka taea hoki te whakamahi i te DAC (me whakamahi rauemi ārai motuhake mō te 5-7 mita hei whakatutuki i ngā whakaritenga āhuatanga). Ko te hononga ki tua atu i ēnei tawhiti ka whakatutukihia e te AOC.
10G SFP+ ki te SFP+ Tere Tere Taura
Ka whakamahia e te 10G SFP+ ki te SFP+ DAC tētahi huihuinga taura twinaxial passive, ā, ka hono tika ki te kōwae SFP+, he nui te kiato, he iti te mana, he iti te utu, ā, he iti hoki te whakaroa.
He aha ngā momo taura tere-teitei 10G SFP+ ki te SFP+ e wātea ana?
I te nuinga o te wā, e toru ngā momo taura tere-teitei 10G SFP+ ki te SFP+:
Taura tere-teitei matua parahi 10G SFP+ (DAC),
Taura Tere Tere Matua Parahi Kaha 10G SFP+ (ACC),
Taura Whatu Hohe 10G SFP+ (AOC),
He pai ēnei mō ngā hononga whatunga i roto i tētahi whatanga me waenganui i ngā whatanga tata, ā, he tino whai hua hoki.
Mā te taura tere-teitei matua parahi SFP+ e whakarato he hononga hiko tika i waenga i ngā pito e rua o te taura e rite ana, ā, ka taea e te tawhiti hononga te tae ki te 12m. Heoi, nā te taumaha o te taura me te whakaaro ki te raruraru o te pono o te tohu, ko te roa o tōna whakamahinga he 7m ki te 10m te nuinga o te wā.
Taura Tere Tere 40G QSFP+ ki te QSFP+
Ko te taura tere-nui 40G (DAC) e pā ana ki tētahi taura hono me ngā taputapu whakawhiti muka whatu i ngā pito e rua, ka taea te whakatutuki i te tuku raraunga 40Gbps, ā, he otinga hononga tere-nui utu-pai. Ka taea te wehewehe i ngā taura tere-nui 40G kia toru ngā momo: 40G QSFP+ ki QSFP+DAC, 40GQSFP+ ki 4*SFP+DAC, me 40GQSFP+ ki 4XFP+DAC.
Ko te 40G QSFP+ ki te QSFP+ DAC he mea tito mai i ngā taputapu whakawhiti whatu 40G QSFP+ e rua me ngā waea matua parahi. Ka taea te whakamahi i tēnei taura tere-teitei hei whakatutuki i te hononga o ngā tauranga 40G QSFP+ o nāianei ki ngā tauranga 40G QSFP+, i roto noa i te tawhiti 7m.
Ko te 40G QSFP+ ki te 4×SFP+ DAC he mea tito mai i tētahi taputapu whakawhiti whatu 40G QSFP+, he waea matua parahi, me ētahi taputapu whakawhiti whatu 10G SFP+ e whā. Ko tētahi pito he atanga 40G QSFP+, e tutuki ana i ngā whakaritenga o te SFF-8436, ā, ko tētahi atu pito he atanga 10G SFP+ e whā. , e rite ana ki ngā whakaritenga o te SFF-8432, e whakamahia ana hei whakatutuki i te hononga i waenga i ngā taputapu 40G me te 10G (NIC/HBA/CNA, ngā taputapu pana me te tūmau), e ai ki ngā whakaritenga a te kiritaki mō te roa o ngā taura i ngā pito e rua, ko te tikanga kei roto noa i te 7m. Ko te tawhiti, koinei te mea tino ohanga me te ngāwari ki te whakatutuki i te whakawhiti tauranga pana.
Ko te 40G QSFP+ ki te 4XFP DAC he mea tito mai i tētahi taputapu whakawhiti whatu 40G QSFP+, he waea matua parahi, me ētahi taputapu whakawhiti whatu 10G XFP e whā. Nā te mea kāore he paerewa taura parahi DAC o te taputapu whakawhiti muka whatu XFP, he iti te utu tohu e tukuna ana e te taputapu, ā, he nui rawa te ngaronga o te taura tonu. Ka taea anake te whakamahi mō te tuku tawhiti poto, i roto i te tawhiti o te 2m. Nō reira, ka taea te whakamahi i tēnei taura tere-teitei hei hono i ngā tauranga 40G QSFP+ o nāianei ki ngā tauranga XFP e whā.
Taura Tere Tere 25G SFP28 ki te SFP28
Ka taea e te 25G SFP28 ki te SFP28 DAC te whakarato i te kaha hononga raraunga whānui-teitei 25G ki ngā kiritaki, e rite ana ki te paerewa IEEE P802.3by Ethernet me te SFF-8402 SFP28, ā, he whānuitia te whakamahinga i roto i ngā pūnaha pokapū raraunga, i ngā pūnaha pokapū rorohiko nui rānei.
Taura Tere Tere 100G QSFP28 ki te QSFP28
Ka taea e te 100G QSFP28 ki te QSFP28 DAC te whakarato i te kaha hononga raraunga whānui-teitei 100G ki ngā kiritaki, e whakarato ana i ngā hongere takirua e 4, ka taea e ia hongere te tautoko i te tere whakahaere tae atu ki te 25Gb/s, ā, ko te whānui whakahiato he 100Gb/s, e rite ana ki te whakatakotoranga SFF-8436, e whakamahia ana i roto i te Hononga i waenga i ngā taputapu me ngā tauranga QSFP28.
Taura Tere Tere 100G QSFP28 ki te 4*SFP28
Ko tētahi pito o te 100G QSFP28 ki te 4 SFP28 DAC he atanga 100G QSFP28, ā, ko tētahi atu pito he 4 atanga 25G SFP28, ka taea te whakarato ki ngā kiritaki he kaha hononga raraunga whānui-teitei 100G, e rite ana ki ngā paerewa SFF-8665/SFF-8679, IEEE 802.3bj me InfinibandEDR, e whakamahia whānuitia ana i roto i ngā horopaki pūnaha pokapū raraunga, pokapū rorohiko nui rānei.
Wā tuku: Oketopa-18-2022