Ibhizinisi lobuchwepheshe obuphezulu eligxile ocwaningweni nasekuthuthukisweni kwezokuxhumana kanye nokukhiqizwa kwefiber optical.
Ulimi
Ibhizinisi lobuchwepheshe obuphezulu eligxile ocwaningweni nasekuthuthukisweni kwezokuxhumana kanye nokukhiqizwa kwefiber optical.
I-Copper cabling yindleko ephansi, ukubambezeleka okuphansi, kanye nendlela yamandla aphansi kakhulu yokuxhuma amasistimu anesivinini esikhulu ndawonye. Izintambo ze-DAC "zinamathisele ngokuqondile" amasistimu angaphansi kagesi ndawonye, yingakho ebizwa ngokuthi i-Direct Attach Copper cables (DACs). Izintambo zethusi ze-DAC zisetshenziselwa kakhulu ama-rack esistimu axhumanisa amaseva ekhompuyutha kumasistimu angaphansi kwesitoreji ngaphakathi kobude obukhulu obungamamitha angu-3.
1. Ihlinzekwa nge-twin-port OSFP, OSFP, kanye ne-QSFP112 ends
2. Ama-DAC anikezela ngobude obungu-0.5m kuya ku-2-amamitha kumakhebuli aqondile, futhi kufika kumamitha angu-3 kuma-splitter
3. Ukusetshenziswa kwamandla kungu-0.1 Watts ekugcineni
4. Intambo encane engu-30AWG isetshenziselwa ubude obufushane obufika kumitha elingu-1 kuzintambo ezingu-800G-to-800G
5. Intambo engu-26AWG ewugqinsi enezivikelo eyengeziwe isetshenziselwa amamitha angu-2 ukuya kwangu-3 kanye nezihlukanisi.
6. Izintambo ezimbili ezihlukanisiwe ezihlukene zinikezwa kufika kumamitha angu-3 ku-1:2 400Gb/s 4-channeland 1:4 200Gb/s 2-channel ends ukuze zisetshenziswe kuma-adaptha e-ConnectX-7 kanye ne-BlueField-3
7. I-BlueField-3 isebenzisa kuphela i-QSFP112, futhi i-ConnectX-7 inikezwa kokubili i-QSFP112 ne-OSFP.
I-DAC Twin-port OSFP Straight and Splitters isebenzisa i-OSFP ne-QSFP112 Ends
Ingabe i-DAC Copper noma Fiber?
Izintambo ze-DAC zenziwe nge-Twinnax copper coaxial evikelekile futhi afakwe embonini ngamamojula anoma yiluphi uhlangothi axhunywe kumachweba angashintshi. Amamojula awakwazi ukususwa kukhebuli. Ngakho-ke, zonke izintambo ze-DAC zikhiqizwa ngobude obunqunyiwe. Ikhebula le-copper elinesivinini esikhulu linokusebenza okuhle kakhulu kokunciphisa, ukubambezeleka okuphansi, kanye nokuphikisana nokuphazamiseka ekudlulisweni kwe-broadband ye-high-frequency.
Ikhebula le-Twinax lisetshenziselwa ini?
Ikhebula le-Twinax elinamathiselwe ngqo lingasetshenziswa kakhulu ekuxhumekeni kwesikhungo sedatha njengamadivayisi okugcina e-SATA, izinhlelo ze-RADI, amarutha ayinhloko, amaswishi ayinhloko, amaseva e-10G/40G/100G Ethernet, ne-InfiniBand. Ngokuvamile, le ntambo yethusi yokunamathisela ngokuqondile inikeza isisombululo esingabizi kakhulu nesisebenza kakhulu kulezi zimo ezilandelayo:
• I-top of Rack(ToR)/I-Adjacent Rack - Ikhebuli ye-DAC engenzi lutho noma esebenzayo ilungele ukusebenza okufushane kwe-ToR noma i-rack-to-rack enesabelomali esingabizi kakhulu.
• Phakathi Nomugqa - Ama-DAC asebenzayo angaba yisixazululo esingcono kulolu hlelo lokusebenza, inqobo nje uma ibanga lokudlulisela lingaphansi kuka-15m.
• Ukuphela Komugqa - Izintambo ze-DAC zilungele ukuphela kwezakhiwo zemigqa inqobo nje uma ibanga lingaphakathi komkhawulo wamamitha ayi-15.
Amakhebuli e-DAC ajwayelekile kakhulu
I-10G SFP+ kuya ku-SFP+ DAC
I-10G SFP + kuya ku-SFP+ DAC yamukela imihlangano yekhebula ye-axis ekabili futhi ixhumeke ngokuqondile kumojula ye-SFP +. Inezici zokuminyana okuphezulu, amandla aphansi, izindleko eziphansi, nokubambezeleka okuphansi.
40G QSFP+ kuya ku-QSFP+ DAC
I-40g QSFP + kuya ku-QSFP + i-DAC iyikhebula le-copper elinamathiselwe ngesivinini esiphezulu elihlanganisa ama-transceiver amabili we-40G QSFP+ ne-copper core, esetshenziselwa ukuxhumana phakathi kwamachweba we-40G QSFP + kuya ku-40G QSFP+ port enebanga lokudlulisela elingaphansi kwe-7m.
25G SFP28 kuya ku-SFP28 DAC
I-25G SFP28 kuya ku-SFP28 DAC inganikeza amakhasimende amandla okuxhumana enethiwekhi ye-Ethernet ye-25G ephezulu. Ngokuvumelana ne-IEEE p802.3by Ethernet standard kanye ne-sff-8402 SFP28, isetshenziswa kakhulu kusikhungo sedatha noma ezimweni zesistimu ye-Super-computing Center.
100G QSFP28 kuya ku-QSFP28 DAC
I-100G QSFP28 kuya ku-QSFP28 DAC inikeza uxhumano lwedatha ngokusebenzisa i-bandwidth engu-100G kanye neziteshi ze-duplex ezingu-4x. Ngokuvumelana ne-SFF-8436 Standard, isiteshi ngasinye sisekela isilinganiso esingu-25Gb/s kanye no-100 Gb/s wokuhlanganisa komkhawulokudonsa futhi sisetshenziselwa ukuxhumana kwenethiwekhi ye-Ethernet phakathi kwezinto zokusebenza ezinamachweba we-QSFP28.
I-100G QSFP28 kuya ku-4×SFP28 DAC
Ukuphela okukodwa kwe-100G QSFP28 kuya ku-4 × SFP28 DAC inechweba le-100G QSFP28, kanti elinye linamachweba amane we-25G SFP28. Ihambisana ne-SFF-8665/SFF-8679、IEEE 802.3bj kanye ne-Infiniband EDR Standard, ihlinzeka ngoxhumano lwedatha ngomkhawulokudonsa ongu-100G futhi isetshenziswa kabanzi kuzimo zesistimu ezikhungweni zedatha noma izikhungo ze-HPC.
200G QSFP56 kuya ku-QSFP56 DAC
I-200G QSFP56 Active Direct Attach Copper Twinax Cable yakhelwe ukusetshenziswa ku-200GBASE Ethernet. Zifanele izixhumanisi ezimfushane kakhulu futhi Thuthukisa ukusebenza kahle kwenethiwekhi kuseva yesikhungo sedatha nokuxhumeka kwesitoreji. Le ntambo ihambisana ne-IEEE 802.3cd nge-Ethernet standard kanye ne-QSFP MSA Compliant. I-FiberMall 200G QSFP56 DAC Cable, esetshenziswe ku-200G Ethernet, i-InfiniBand HDR, isikhungo sedatha, kanye nenethiwekhi yendawo yokugcina.
200G QSFP56 kuya ku-2x100G QSFP56 Breakout DAC
I-200G QSFP56 kuya ku-2x 100G QSFP56 imihlangano ye-Breakout AOC (Active Optical Cable) iklanyelwe ukusekela i-200G/2x100G Ethernet kanye ne-InfiniBand HDR/HDR100. Le ntambo yokuphumula ithobelana namazinga e-IEEE 802.3cd, SFF-8665, kanye ne-QSFP56 MSA. Ihlinzeka ngoxhumano lwembobo ye-200G QSFP56 ekugcineni kanye nezimbobo ezimbili ze-100G QSFP56 ngakolunye uhlangothi futhi ifanele isikhungo sedatha kanye nezixhumanisi ze-HPC (High-Performance Computing) kufika ku-70m (OM3) noma 100m (OM4/OM5).
400G NDR OSFP kuya ku-OSFP DAC
Lena i-OSFP eya ku-OSFP PAM4 Direct Namathisela Ikhebula 28AWG engaxhuma ama-NVIDIA ConnectX-7 400G OSFP NIC amabili nge-400G OSFP Flat-top DAC. Inesilinganiso sedatha esiphezulu esingu-400Gb/s kanye ne-OSFP FLT kusixhumi se-OSFP FLT.
400G OSFP kuya ku-2x200G OSFP DAC
I-400G OSFP kuya ku-2x200G QSFP56 Breakout Direct Namathisela Ikhebula Lethusi linikeza ukuxhumana okuthembekile kwezikhungo zedatha ezindaweni ezidinga kakhulu. Isesibili esinezindleko eziphansi kakhulu, ukubambezeleka okuphansi, kanye nesixhumanisi sokusebenzisa amandla aphansi kakhulu esitholakalayo.
I-800G Infiniband NDR Twin-port OSFP ukuya ku-4x200G QSFP112 DAC
Ikhebula le-800G twin-port OSFP kuya ku-4x200G QSFP112 InfiniBand NDR (Non-Data Rate) breakout DAC (Direct Attach Copper) ikhebula ikhebula lethusi elivumela ukugqabhuka imbobo eyodwa engu-800 Gigabit ngomzuzwana (800G) OSFP izimbobo ezine ze-QSFP 200 ngesekhondi ngalinye ukuxhumana.
Kungani Khetha Amakhebula e-DAC Kuma-Optical Transceivers?
1. Ukusebenza okuphezulu: I-DAC ifanele izintambo ezikude zesikhungo sedatha ngokushintshana kwayo okuqinile kohlelo lokuhlanganisa;
2. Ukonga amandla nokuvikelwa kwemvelo: Impahla yangaphakathi yekhebula enesivinini esiphezulu iyithusi, enomphumela omuhle wemvelo wokulahla ukushisa kanye nezimfanelo zokonga amandla nokuvikelwa kwemvelo;
3. Ukusetshenziswa kwamandla okuphansi: Njengoba ikhebula lokwenziwa lingawadingi amandla, ukusetshenziswa kwamandla cishe ku-0.
4. Izindleko eziphansi: Izintambo zethusi ishibhile kakhulu kune-fiber, ngakho-ke ukusebenzisa izintambo ezinesivinini esikhulu kunganciphisa kakhulu izindleko zezintambo zesikhungo sonke sedatha.
