ʻO ka lōʻihi o ke kaula Ethernet kiʻekiʻe loa: He aha ia?

Ka lōʻihi loa o uwea ethernetʻO wai paha ia?
ʻO ke kānāwai gula no nā kaula Ethernet keleawe maʻamau (e like me Cat5e, Cat6 a me cat6a) he 100 mika (328 kapuaʻi). ʻO kēia lōʻihi loa e komo pū ana me ke kahawai holoʻokoʻa: ke ala uwea nui a me nā uwea ʻāpana pōkole ma kēlā me kēia wēlau.

No ke aha i kaupalena ʻia ai ka mamao he 100m?
Ma ʻō aku o kēia mamao, nāwaliwali nui nā hōʻailona uila e hele ana ma o nā kaula keleawe ma muli o ka attenuation. Lilo pū kekahi pilikia i ka hoʻopilikia ʻana (crosstalk) a me nā pilikia hoʻonohonoho hōʻailona. ʻO ka ʻoi aku ma mua o 100 mika ka hopena maʻamau i ka wikiwiki lohi, nā pilina intermittent, a i ʻole nā ​​​​​​hemahema piha.

Pono e hele hou aku? Loaʻa iā ʻoe nā koho:

Nā kuapo pūnaewele/kikowaena: ʻO ke kau ʻana i kahi mea hana, e like me ke kuapo a i ʻole ke kikowaena, ma mua o ka māka 100m e hoʻonohonoho hou i ka helu mamao. Hiki iā ʻoe ke hoʻonohonoho i nā ʻāpana daisy-chain (kēlā me kēia

Nā mea hoʻolōʻihi Ethernet: Hoʻololi kēia mau mea hana kūikawā i ka hōʻailona no ka hoʻoili ʻana ma nā mamao lōʻihi, i kekahi manawa me ka hoʻohana ʻana i nā kaula like ʻole, e like me ke kaula coaxial a i ʻole nā ​​​​laina DSL, hiki ke hiki i nā kilomita. Nā kaula fiber optic: No nā ʻāpana lōʻihi loa (nā haneli mika a i ʻole kilomita) a me ka hana maikaʻi loa, ʻo nā kaula fiber optic ka hopena kūpono, ʻoiai lākou e koi ana i nā transceivers kūpono ma kēlā me kēia hopena.