Uea AOCvs DAC Cable: ʻO wai ka mea maikaʻi iā ʻoe

1. He aha ka DAC a me AOC Uwa i like like?
ʻO ka DAC a me ka AOC nā hoʻonā cabling maʻamau no ka pūnaewele ʻikepili a hoʻohana pinepine ʻia no ka wikiwiki kiʻekiʻe, hilinaʻi kiʻekiʻe a me ka hoʻouna ʻana i koi ʻia e nā kikowaena ʻikepili, nā kamepiula hana kiʻekiʻe, a me nā mea mālama nui.Loaʻa nā ʻāpana ʻelua i nā hui kelepona me nā transceivers i hoʻopau ʻia e ka hale hana, i hoʻopili ʻia i nā awa paʻa wale nō.Ma waho aʻe, hiki ke hana ʻia nā kaula DAC a me AOC i nā lōʻihi like ʻole e kākoʻo i nā helu ʻikepili hoʻouna like ʻole, e like me 10G SFP DAC/AOC cable, 25G AOC cable, 40G DAC cable, a me 100G AOC cable.

2. Nā pono a me nā pōʻino o ka DAC Cable

Pono o ka hoopili pololei i ke kaula keleawe

ʻOi aku ka maikaʻi o ke kumukūʻai— ʻO ka mea maʻamau, ʻoi aku ka haʻahaʻa o ke kumu kūʻai o nā kaula keleawe ma mua o nā fiber optical.ʻO ke kumukūʻai o nā kaula keleawe passive he 2 a 5 mau manawa ma mua o nā kaula fiber o ka lōʻihi like.No laila, ʻo ka hoʻohana ʻana i nā kaula kiʻekiʻe e hoʻemi i nā kumukūʻai cabling o ke kikowaena data holoʻokoʻa.

ʻO ka hoʻohana ʻana i ka mana haʻahaʻa - ʻo DAC kiʻekiʻe (direct attach cable) e hoʻopau i ka mana liʻiliʻi (ʻaneʻane ʻole ka hoʻohana ʻana i ka mana) no ka mea ʻaʻole pono nā kelepona passive i kahi lako mana.ʻO ka hoʻohana mana o nā kaula keleawe ikaika ma kahi o 440mW.Inā ʻoe e hoʻohana pololei i nā kaula keleawe ma kahi o nā kaula fiber AOC, hiki iā ʻoe ke mālama i nā haneli haneli o nā kilowatts o ka mana uila.

ʻOi aku ka lōʻihi-Ua hoʻolālā ʻia me kahi ʻano pili ʻole o ka module optical a me ke kaula optical, e hōʻemi ana i ke kumukūʻai a hōʻoia ʻaʻole i ʻike ʻia ka port optical i ka lepo a me nā mea haumia ʻē aʻe.No laila, emi iki ka DAC i ka poino.

 Nā pōʻino o ka hoʻopili pololei ʻana i ke kaula keleawe

ʻO kekahi o nā hemahema o ke kaula DAC ʻo ia ke kaumaha a ʻoi aku ka nui ma mua o nā AOC.Eia kekahi, ʻoi aku ka maʻalahi o ka hopena o ka interference electromagnetic a me ka attenuation ma nā mamao lōʻihi ma muli o nā hōʻailona uila i hoʻouna ʻia ma waena o nā hopena ʻelua.

3. Nā pono a me nā pōʻino o AOC Cable

Pono o AOC

ʻO ke kaumaha māmā-Ua haku ʻia kahi uwea optical hana ʻelua mau transceivers optical a me kahi uwea fiber optic patch, nona ke kaumaha he hapaha wale nō o ke kaula keleawe hoʻopili pololei, a ʻo ka hapa nui ma kahi o ka hapalua o ke kaula keleawe.

ʻOi aku ka lōʻihi-hiki i ka fiber AOC ke hāʻawi i ka hiki ʻana o ka hoʻouna ʻoi aku ka lōʻihi a hiki i ka 100-300m ma muli o kona hoʻoheheʻe ʻana i ka wela ma ka ʻōnaehana uwila o ka lumi kamepiula a me ka liʻiliʻi liʻiliʻi liʻiliʻi o ke kaula uila.

ʻOi aku ka hilinaʻi- ʻOi aku ka liʻiliʻi o ke kaula optical ikaika i ka hoʻopili electromagnetic no ka mea ʻo ka fiber optical kahi ʻano dielectric hiki ke hoʻomau i kahi kahua uila i loko.ʻOi aku ka maikaʻi o ka hapa hapa hapa o ka hoʻoili huahana, a hiki i ka BER ke hiki i 10 ^ -15.

Nā pōʻino o AOC

ʻO ka hemahema nui o nā uwea fiber active AOC, ʻo ia ka ʻoi aku ka maikaʻi o ka hoʻohui ʻana o ka hui cabling no nā mea hoʻohana kikowaena data kiʻekiʻe.Ma waho aʻe o kēia, ʻoi aku ka liʻiliʻi o nā AOC inā ʻaʻole i mālama pono ʻia no ka mea ʻoi aku ka māmā a ʻoi aku ka lahilahi o nā AOC i ʻoi aku ka maʻalahi a ʻoi aku ka maʻalahi o ka pōʻino inā ʻaʻole mālama pono ʻia.

4. I ka manawa hea ʻoe e hoʻohana ai i nā kelepona AOC?

Eia nō naʻe, ʻoi aku ka liʻiliʻi o ka mamao o ka hoʻouna ʻana ma waena o nā ToR a me nā hoʻololi koʻikoʻi ma mua o 100m, kahi e hoʻopili nui ʻia ai nā kaapuni Integrated.No laila, ʻoi aku ka maikaʻi o ka uwea optical hana no ka hoʻopili ʻana i ka ʻikepili ma muli o kona pono o ka māmā, ke anawaena uea liʻiliʻi, a me ka mālama ʻana i ke kaula.No ka loaʻa ʻana o nā kikoʻī koʻikoʻi o ke kikowaena data no ka hoʻouna ʻana i ka hōʻailona, ​​ʻoi aku ka maikaʻi o ke kaula optical ikaika ma mua o ke kaula twin-ax DAC i ka hōʻailona hōʻailona a me ka hoʻolālā hoʻohui optical, e hōʻemi nui ana i nā hewa i ka hana hōʻailona.Eia kekahi, ua hana ʻia ka hōʻailona EMI kiʻekiʻe i loko o nā modula optical pluggable, ʻoi aku ka maikaʻi o ka EMI fiber cable AOC ma mua o ke kelepona DAC.ʻAʻole kānalua, ʻo ke kaula AOC kāu koho mua i ka pilina ma waena o nā hoʻololi a me nā hoʻololi i loko o ka hiki pōkole a i ʻole.

5. I ka manawa hea ʻoe e hoʻohana ai i nā kelepona DAC?

Wahi a ka hoʻolālā lole i hoʻolaha ʻia e Facebook, kahi kikowaena a me nā hoʻololi Top-of-Rack (ToR) ke kumu kumu o ke kikowaena data.ʻO ka mea maʻamau, ʻo ka mamao ma waena o kahi ToR a me kahi kikowaena NIC (Network Interface Card) ma lalo o 5 mika.Ma kēia kūlana, ʻoi aku ka maikaʻi o ke kaula DAC ma mua o nā kaula AOC e pili ana i ke kumukūʻai, ka hoʻohana ʻana i ka mana, a me ka hoʻopuehu wela.No laila, ʻo DAC kahi koho koho no nā ʻōnaehana interconnect IDC.Ma waho aʻe, ma kekahi mau manawa kūikawā, ʻo 100G QSFP28 a 4 * SFP28 DAC kahi pilina pololei ʻē aʻe e like me ke koi kikoʻī o ka mea hoʻohana no ka pili ʻikepili.