Na Admin / 13 Oct 22 /0Nā Manaʻo He aha ka nalu māmā i nā kikoʻī [Wehewehe] ʻO nā nalu māmā he pāhawewe electromagnetic i hana ʻia e nā electrons i ke kaʻina o ka neʻe atomika. ʻOkoʻa ka neʻe ʻana o nā electrons i nā ʻātoma o nā mea like ʻole, no laila ʻokoʻa nā nalu māmā a lākou e hoʻopuka ai. ʻO Spectrum kahi hiʻohiʻona o ke kukui monochromatic i hoʻokaʻawale ʻia e kahi ʻōnaehana dispersion (... Heluhelu hou aku Na Admin / 12 Oct 22 /0Nā Manaʻo ʻO nā pono a me nā kūlana o Ethernet ʻO ka wehewehe ʻana o ka manaʻo: ʻO Ethernet ka maʻamau maʻamau o ka protocol kamaʻilio maʻamau i hāpai ʻia e ka LAN e kū nei. Hoʻohana ka pūnaewele Ethernet i nā ʻenehana CSMA/CD (Carrier Sense Multiple Access and Conflict Detection). ʻO Ethernet ka mana o nā ʻenehana LAN: 1. ʻO ke kumu kūʻai haʻahaʻa (emi iho ma mua o 100 kaʻa pūnaewele Ethernet ... Heluhelu hou aku Na Admin / 11 Oct 22 /0Nā Manaʻo ʻO ke ʻano hoʻomalu ʻokoʻa ma waena o LAN Pehea e komo ai a hoʻomalu i nā polokalamu kamepiula like ʻole ma o ka media ma ka LAN e hoʻomaopopo mua ʻia penei. I ka wā kahiko, ua hoʻohana ʻia ʻo Ethernet e hoʻopili i nā laina āpau o nā kamepiula home i ke kaʻa e ʻike ai i ka kamaʻilio like ʻana o nā kamepiula. Ke hoʻohana nei i kēia ʻano hana e hoʻouna i ka ʻikepili, pono ʻoe ... Heluhelu hou aku Na Admin / 10 Oct 22 /0Nā Manaʻo Ka Mahana, Laki, Voltage, Transmitter, a me ka Mea Loaʻa o Optical Module 1、 Ka wela hana ʻO ka mahana hana o ka module optical. Maʻaneʻi, pili ka mahana i ka mahana o ka hale. ʻEkolu mau mahana hana o ka module optical, ka mahana pāʻoihana: 0-70 ℃; ʻOihana wela: – 40 ℃ – 85 ℃; Aia kekahi exp... Heluhelu hou aku Na Admin / 09 Oct 22 /0Nā Manaʻo He aha ka Diode? [Wehewehe] Hoʻokumu ʻia ka Diode me kahi hui PN, a hiki i ka photodiode ke hoʻololi i ka hōʻailona opi i hōʻailona uila, e like me ia i hōʻike ʻia ma lalo nei: ʻO ka maʻamau, ua hoʻopili ʻia ka paʻa covalent i ka wā e hoʻomālamalama ʻia ka hui PN me ka mālamalama. Hoʻokumu kēia i nā lua a me nā pālua electron. Hoʻokumu ʻia ka photocurrent ma muli o ... Heluhelu hou aku Na Admin / 08 Oct 22 /0Nā Manaʻo Hoʻomaopopo mua o LAN ʻO LAN ka mea kaulana loa a mākou e hoʻohana nei i kēia lā. He aha ka LAN? ʻO ka Local Area Network (LAN) e pili ana i kahi hui o nā kamepiula i hoʻopili ʻia e nā kamepiula lehulehu ma kekahi wahi me ka hoʻohana ʻana i kahi ala hoʻolaha. ʻOi aku ka nui o kēia wahi, ʻoi aku ka nui o nā mea e hiki ke kamaʻilio me kekahi. A ʻo ka ... Heluhelu hou aku << < Mamua123456Aʻe >>> ʻAoʻao 4 / 47