nkhani

Mu zida za Efaneti, pomwe chipangizo cha PHY chilumikizidwa ndi RJ, chosinthira maukonde nthawi zambiri chimawonjezeredwa.Kupopera kwapakati kwa ma transfoma ena amtaneti kumakhazikika.Zina zimalumikizidwa ndi magetsi, ndipo mtengo wamagetsi ukhoza kukhala wosiyana, kuphatikiza 3.3V, 2.5V, ndi 1.8V.Ndiye momwe mungalumikizire kampopi wapakati (PHY end) wa thiransifoma?

A. Chifukwa chiyani matepi ena apakati amalumikizidwa ndi mphamvu?Ena amakhazikika?

Izi zimatsimikiziridwa makamaka ndi mtundu wa oyendetsa doko la UTP wa chipangizo cha PHY chomwe chimagwiritsidwa ntchito.Mitundu yamagalimoto imagawidwa kukhala: ma voltage drive ndi ma drive apano.Lumikizani magetsi poyendetsa ndi voteji;gwirizanitsani capacitor pansi pamene mukuyendetsa ndi panopa.Chifukwa chake, njira yolumikizira pompopi yapakati imagwirizana kwambiri ndi mtundu wa UTP port drive wa PHY chip.Nthawi yomweyo, chonde onani tsatanetsatane ndi kapangidwe ka chip.

Zindikirani: Ngati kampopi wapakati alumikizidwa molakwika, doko la netiweki lidzakhala losakhazikika kapena lotsekedwa.

Mu zida za Efaneti, pomwe chipangizo cha PHY chilumikizidwa ndi RJ, chosinthira maukonde nthawi zambiri chimawonjezeredwa.Kupopera kwapakati kwa ma transfoma ena amtaneti kumakhazikika.Zina zimalumikizidwa ndi magetsi, ndipo mtengo wamagetsi ukhoza kukhala wosiyana, kuphatikiza 3.3V, 2.5V, ndi 1.8V.Ndiye momwe mungalumikizire kampopi wapakati (PHY end) wa thiransifoma?

B. N'chifukwa chiyani imagwirizanitsidwa ndi magetsi ena pamene ikugwirizanitsidwa ndi magetsi?

Izi zimatsimikiziridwa ndi mulingo wa doko la UTP wotchulidwa mu data ya PHY chip yomwe imagwiritsidwa ntchito.Mulingo uyenera kulumikizidwa ndi voteji yofananira, ndiye kuti, ngati ili 1.8v, imakokedwa mpaka 1.8v, ngati ili 3.3v, imakokedwa mpaka 3.3v.

Udindo wapampopi wapakati wa thiransifoma ya LAN:

1. Chepetsani ma voliyumu wamba wapano komanso wamba wamba pa chingwe popereka njira yobwerera yocheperako yaphokoso wamba pamzere wosiyana;

2. Kwa ma transceivers ena, perekani voteji ya DC bias kapena gwero lamagetsi.

The Integrated RJ common mode kupondereza kungakhale bwino, ndi parasitic magawo nawonso zochepa amakhudzidwa;choncho, ngakhale mtengo ndi wokwera kwambiri, umakhalanso wotchuka kwambiri chifukwa cha kusakanikirana kwakukulu, malo ang'onoang'ono, kuponderezedwa kwamtundu wamba, magawo a parasitic ndi ubwino wina.olandiridwa.

Kodi ntchito ya network transformer ndi yotani?Kodi simungathe kuchitola?

Kunena mongoyerekeza, imatha kugwira ntchito bwino popanda kulumikiza thiransifoma ya netiweki ndikulumikizana mwachindunji ndi RJ.Komabe, mtunda wotumizira udzakhala wochepa, ndipo udzakhudzidwanso pamene ulumikizidwa ndi doko la intaneti la mlingo wosiyana.Ndipo kusokoneza kwakunja kwa chip kumakhalanso kwakukulu.Pamene thiransifoma ya netiweki ilumikizidwa, imagwiritsidwa ntchito makamaka polumikizira mulingo wazizindikiro.1. Limbikitsani chizindikiro kuti mtunda wotumizira ukhale patali;2. Kupatula kumapeto kwa chip kuchokera kunja, kukulitsa luso loletsa kusokoneza, ndikuwonjezera chitetezo cha chip (monga kugunda kwa mphezi);3. Mukalumikizidwa kumagulu osiyanasiyana (monga tchipisi ta Ena PHY ndi 2.5V, ndipo tchipisi ta PHY ndi 3.3V), sizikhudza zida za mnzake.
Ambiri, thiransifoma maukonde makamaka ali ndi ntchito za kufala chizindikiro, impedance yofananira, waveform kukonza, kupondereza chizindikiro clutter ndi mkulu voteji kudzipatula.