ʻIke

E like me ka mea i hōʻike ʻia ma ka kiʻi ma luna, hiki iā mākou ke hoʻomaopopo i ke ʻano o RJ45 e like me ke kiʻi, akā ʻaʻole nā ​​​​pili RJ45 a pau e like me ka mea i hōʻike ʻia ma luna nei he mau pilina RJ11, ʻaʻole e kūkākūkā ʻia no kekahi manawa.Hoʻonohonoho ʻia nā hoʻololi i kēlā me kēia ʻaoʻao me nā awa RJ45 he nui, kahi e hiki ai ...

Ma ka ʻōlelo maʻamau, ʻo ka hoʻohālikelike ʻana o nā modules optical e pili ana inā hiki i nā modules ke hana maʻamau i nā lako kamaʻilio o nā ʻano like ʻole a me nā mea hana.He haʻahaʻa haʻahaʻa ka ʻenehana ʻenehana o nā modula optical, a maʻalahi kā lākou hoʻolauna.ʻO ka hopena, nui nā t...

a i ʻole ke kumu hoʻohālike OSI, hana ke kuapo ma ka papa ʻelua o kēia kükohu, ka papa loulou data.E like me ka mea i hōʻike ʻia ma kēia kiʻi, ʻewalu mau awa ka hoʻololi.Ke hoʻopili ʻia kahi hāmeʻa i ka hoʻololi ma o RJ45, e ʻike ka puʻupuʻu haku o ka hoʻololi i nā awa i hoʻopili ʻia i ka pūnaewele...

ʻO kahi module PON kahi ʻano o ka module optical.Hoʻohana ia ma nā lako kikowaena OLT a pili pū me nā lako keʻena ONU.He mea nui ia o ka pūnaewele PON.Hiki ke hoʻokaʻawale ʻia nā modules optical PON i nā modules optical APON (ATM PON), BPON (broadband passive network) optical modules, EPON (Ethernet...

FHSS, frequency hopping spread spectrum technology, ma lalo o ke kūlana o ka synchronization and simultaneity, e ʻae i nā hōʻailona i hoʻouna ʻia e nā mea lawe haiki o kahi ʻano kikoʻī (ʻo kēia ʻano kikoʻī he alapine kikoʻī, etc.) ma nā kihi ʻelua.No ka mea hoʻokipa me kahi ʻano kikoʻī ʻole, ka hop...

Ua noi ʻia ʻo OFDM ma IEEE802.11a.Ma muli o kēia ʻano o ka modulation, pono mākou e ʻike i ke ʻano o OFDM e hoʻomaopopo i nā protocols like ʻole.He aha ka OFDM?ʻO OFDM kahi ʻenehana modulation multi-carrier kūikawā.Ke manaʻo nei kēia ʻenehana e hoʻokaʻawale i kahi kahawai i kekahi mau sub-channels orthogonal, a ...