Na Admin / 17 Sep 22 /0Manaʻo manaʻo awa Ethernet - RJ45 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 ... Heluhelu hou aku Na Admin / 16 Sep 22 /0Manaʻo manaʻo Hoʻohālikelike o nā Modules Optical 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 o nā modules optical, a he maʻalahi ko lākou hoʻolauna. ʻO ka hopena, nui nā t... Heluhelu hou aku Na Admin / 15 Sep 22 /0Manaʻo manaʻo Ke Kumu Hana o ka Switch 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... Heluhelu hou aku Na Admin / 14 Sep 22 /0Manaʻo manaʻo Introduction to PON Module 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... Heluhelu hou aku Na Admin / 08 Sep 22 /0Manaʻo manaʻo Ke Kumu o ka Frequency Hopping Spread Spectrum Communication (FHSS) FHSS, frequency hopping spread spectrum technology, ma lalo o ke ʻano o ka synchronization a me ka manawa like, 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... Heluhelu hou aku Na Admin / 07 Sep 22 /0Manaʻo manaʻo OFDM — 802.11 Hōʻike Kūkākūkā 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 ... Heluhelu hou aku << < Mamua26272829303132Aʻe >>> ʻAoʻao 29 / 76