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He aha ke kaula coaxial a pehea e ʻike ai?

ʻO ke kaula coaxial he uwea a me ka laina hoʻouna hōʻailona, maʻamau i hana ʻia e nā ʻāpana ʻehā o nā mea.

ʻO ka ʻaoʻao o loko he uea keleawe conductive, a ʻo waho o ka laina he ʻili i hoʻopuni ʻia, he insulator a me ka hoʻohana dielectric.

Insulator ma waho a me kahi ʻāpana lahilahi o ke kino conductive mesh, maʻamau he keleawe a i ʻole ka hao.

A laila ʻo ke kino conductive ma waho ka papa o waho o ka mea insulating e like me ka ʻili o waho.

He aha ke kelepona coaxial i hoʻohana ʻia no?

Hiki ke hoʻohana ʻia nā kaula coaxial no ka lawe ʻana i nā hōʻailona analog a me nā kikohoʻe no nā ʻano noi like ʻole, ʻo ka mea nui loa ʻo ia ka hoʻouna ʻana i ke kelepona uila. Hoʻouna kelepona lōʻihi, nā pilina ma waena o nā ʻōnaehana kamepiula, a me nā pūnaewele puni honua.

Uea uwea coaxial ke ulu wikiwiki nei ma ke ʻano he ala e hoʻolaha ai i nā hōʻailona kīwī i nā tausani o nā home, ʻo ia ke kīwī uwea. Hiki ke hoʻouka ʻia kahi ʻōnaehana TV uwea me nā kakini a i ʻole nā ​​haneli o nā kaha TV, a hiki i kona laulā hoʻouna ke hiki i ʻumi mau kilomita.

Hiki ke hoʻohana ʻia nā kaula coaxial no ka hoʻouna ʻana i nā hōʻailona analog a me nā kikohoʻe no ka nui o nā noi.

Hoʻokaʻawale ʻia nā kaula coaxial i nā ʻāpana ʻelua, ma muli o kā lākou kūlana hana:

uwea coaxial baseband

ʻO ka pale o ka baseband uwea uwea coaxial ʻO ka maʻamau he ʻano mesh i hana ʻia me ke keleawe me kahi ʻano impedance o 50 ʻŌ.

Hoʻohana ʻia kēia uea no ka hoʻouna ʻana i nā hōʻailona kikohoʻe a loaʻa maʻamau i ke kaula mānoanoa RG-8 a me ke kaula lahilahi RG-58..

ʻO ka ʻokoʻa ʻokoʻa ma waena o nā uea koʻikoʻi a maikaʻi hoʻi ka ʻokoʻa i ke anawaena uwea.

ʻO ke kaula coaxial kūpono no nā pūnaewele kūloko nui aʻe, he lōʻihi ka lōʻihi maʻamau a me ka hilinaʻi kiʻekiʻe.

Eia naʻe, Pono e hoʻokomo ʻia nā ʻupena uwea koʻikoʻi me ka transceiver a me ka transceiver cable, paʻakikī hoʻi ke kau ʻana. No laila, kiʻekiʻe ke kumukūʻai holoʻokoʻa. He ʻokoʻa, ʻoi aku ka maʻalahi o ke kaula lahilahi a emi ke kumu kūʻai.

Eia naʻe, no ka mea, pono e ʻoki ʻia ke kaula i ka wā e hoʻokomo ai, hiki ke hoʻopili maikaʻi ʻia inā nui nā mea hoʻohui.

Hoʻopili ʻia ka ʻupena me nā kaula mānoanoa a lahilahi paha, pili pinepine ka helu o ka hemahema i nā mīkini a pau ma ke kaula holoʻokoʻa. A pilikia ka hewa i ka ʻike a hoʻoponopono ʻana.

No laila, Ua hoʻololi mālie ʻia nā kaula coaxial baseband e nā hui wili i pale ʻia a i ʻole nā ​​kaula fiber optic..

Uila Coaxial Broadband

Loaʻa i ke kaula coaxial Wideband kahi pale maʻamau i hoʻopaʻa ʻia mai ka alumini a loaʻa kahi ʻano impedance o 75 ʻŌ.

Hoʻohana mau ʻia kēia uwea e hoʻouna i nā hōʻailona analog, ʻike nui ʻia ʻo RG-59, a ʻo ia ke kelepona hoʻouna maʻamau i hoʻohana ʻia i nā ʻupena kīwī uwea, e ʻae ana e hoʻouna ʻia nā hōʻailona kīwī he nui i ka manawa hoʻokahi i hoʻokahi uwea.

Hiki ke hoʻohana ʻia ke kaula coaxial Broadband ma ke ʻano he mea hoʻouna no kekahi mau pūnaewele kamepiula.

ʻO nā uwea coaxial kekahi mea nui o nā pūnaewele kelepona lōʻihi.

Eia naʻe, i kēia mau lā e ulu wikiwiki nei, ke alo nei i ka hoʻokūkū hoʻokūkū mai ka fiber optical, microwave honua, a me ka ukali.

ʻO nā ʻokoʻa nui ma waena o nā ʻekolu penei:

uwea hui wili

  1. He nui kona mau pono e like me ka ikaika anti-interference, mamao hoʻouna lōʻihi, uwea maʻalahi, a me ke kumukuai haahaa.
  2. No ka mea wili pālua loaʻa pū kekahi attenuation nui o ka hōʻailona, ʻo ka mamao hoʻouna. ʻAʻole hiki ke kiʻekiʻe loa kekahi o nā alapine hōʻailona, ʻoiai hiki ke kaupalena ʻia nā hōʻailona kiʻekiʻe e like me Ethernet 100 m.
  3. No nā hōʻailona wikiō, ka bandwidth a hiki i 6MHz, inā pololei i loko o ka hoʻoili pālua wili, e hoemi nui ia.

No laila, pono e hoʻonui a uku ʻia ka hōʻailona wikiō i ka hui wili e hoʻokō ai i ka hoʻouna ʻana i ka lōʻihi, ʻO nā lako hoʻoili wikiō hui pū ʻia e hoʻopau i kēia hana.

  1. He mea kūʻai loa nā lako hoʻoili wikiō ʻelua ʻelua a ʻelua, ʻaʻole wale i hoʻonui i ke kumukūʻai o ka ʻōnaehana, akā, ua hoʻonui ʻia ka mamao i ka wā i emi nui ai kona kumukūʻai i hoʻohālikelike ʻia me ke kaula coaxial.
  2. No laila, ʻO ka ʻōnaehana kiaʻi me ka hui wili no ka hoʻouna ʻana he mau pono maopopo.

ʻO ka fiber Optical Uea

  1. Hoʻouna ka fiber Optical i nā hōʻailona ma ke ʻano o nā pulu māmā, no laila, he aniani a plexiglass paha ka mea. Aia i loko o ke kumu fiber, ka lole pale a me ka lole pale.

2. ʻO ka ʻano o ka fiber optical ua like loa me ke kaula coaxial, me ke kikowaena he fiber optical i hana ʻia me ke aniani a i ʻole ka plastic transparent, hoʻopuni ʻia e kahi mea pale, a hiki ke hoʻohui ʻia nā fiber he nui i loko o ke kaula fiber optic hoʻokahi e like me ka mea e pono ai.

  1. ʻO ka hiʻohiʻona nui o ka fiber optical ʻo ia ke alakaʻi i nā hōʻailona optical, no laila ʻaʻole ia e hoʻopilikia ʻia mai nā hōʻailona electromagnetic waho, a ua lohi loa ka hōʻailona attenuation rate.

No laila, ʻoi aku ka mamao o ka hoʻouna ʻana i ka hōʻailona ma mua o ka hoʻouna ʻana i luna o nā hōʻailona uila o nā uea pūnaewele like ʻole a kūpono loa ia no ke kaiapuni electromagnetic ma nā wahi paʻakikī..

  1. Ma muli o nā hiʻohiʻona hoʻohālikelike o ka fiber optical, hiki i ka fiber optical ke hoʻouna i nā hōʻailona he nui i ka manawa like, no laila hiki ke kiʻekiʻe loa ka wikiwiki o ka lawe ʻana o ka fiber optical, theoretically hiki i ka fiber optic network kiʻekiʻe ke hiki i 50,000Gbps 50Tbps wikiwiki.
  2. ʻO ka hoʻohana ʻana i ka fiber optical ma ke ʻano he mea hoʻoili pūnaewele e pono ai i kahi pae o ka loea a me nā mea hana kūikawā e like me nā transceivers optical., no laila ʻoi aku ka nui o ke kumukūʻai a ʻoi aku ka liʻiliʻi o ka hoʻohana ʻana i nā noi maʻamau.
Hoʻohana nā uwea coaxial i ke au ʻē aʻe ma mua o ke au pololei, ʻo ia hoʻi, ʻo ka huli ʻana o ke au i kekahi mau manawa i kēlā me kēia kekona.

Uea Coaxial

  1. A kelepona coaxial he laina uwea e pili ana i na papa o na uwea insulated i wiliia a puni ka mea lawe keleawe waena.

Hōʻike ʻia ia e ka mana anti-interference maikaʻi, ka hoʻoili paʻa o ka ʻikepili, a me ke kumukuai haahaa, a ua hoohana nui ia, e like me nā laina TV kaapuni pani.

  1. Kūʻai pinepine ʻia kahi laina uwea lahilahi coaxial ma ka mākeke no kekahi mau kālā i ka mika, ʻaʻole pipiʻi loa.

Hoʻohana ʻia ke kaula coaxial e hoʻopili me ke poʻo BNC. ʻO ke kaula coaxial i hāʻawi ʻia e ka mea hoʻolako kelepona ZMS ʻO ka maʻamau he huahana pau i hoʻopili ʻia i ke poʻo BNC, no laila hiki iā ʻoe ke koho pololei.

  1. E like me ka nānā ʻana i nā ʻano o ke kaula coaxial, ke hoʻouna ʻia ka hōʻailona ma ke kaula coaxial, pili ka attenuation i ka mamao hoʻouna a me ke alapine o ka hōʻailona ponoʻī.

ʻO ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ke alapine o ka hōʻailona, ʻoi aku ka nui o ka attenuation.

  1. Nui loa ka bandwidth o ka hōʻailona wikiō, a hiki i 6MHz, a ua hoʻololi ʻia ka ʻāpana kala o ke kiʻi ma ka hopena kiʻekiʻe o ke alapine. Ma keia ano, ka hōʻailona wikiō i ka hoʻouna ʻana i ke kaula coaxial ʻaʻole wale ka amplitude holoʻokoʻa o ka hōʻailona e ka attenuation., a ʻokoʻa loa nā ʻāpana alapine o ka attenuation, ʻoi aku ka nui o ka ʻāpana kala o ka attenuation.
  2. He kūpono wale ke kaula coaxial no ka lawe ʻana i nā hōʻailona kiʻi ma kahi mamao. Ke hiki aku ka mamao hoʻouna ma kahi o 200 mika, e hoʻemi nui ʻia ka maikaʻi o ke kiʻi, ʻoi aku ka liʻiliʻi o ka waihoʻoluʻu a ʻeleʻele.
  3. Loaʻa i ka amplifier coaxial kekahi hoʻonui o ka hōʻailona wikiō a hiki ke hoʻopaʻi i nā nui like ʻole o nā ʻāpana alapine like ʻole ma o ka hoʻoponopono hoʻohālikelike ʻana i hiki ai i ka distortion hōʻailona wikiō puka ma ka hopena e like me ka liʻiliʻi..
  4. I ka hoʻohana ʻana i ke kaula coaxial i ka ʻōnaehana nānā, ʻO ka mamao o ka hoʻouna ʻana i kaupalena ʻia ma kahi o ʻehā a ʻelima paha haneli mika e hōʻoia i ka maikaʻi o ke kiʻi.

ʻO ka mea i luna nei he hoʻolauna i ke kaula coaxial, ʻo ke kaula i hoʻohana pinepine ʻia i ke ola, inā he kānalua kāu e pili ana i ke kūʻai, loaʻa iā mākou kahi ʻelele kūʻai kelepona ʻoihana me ka lawelawe hoʻokahi e kōkua iā ʻoe.

ZMS Cable F

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