Coaxial tambo (inozonzi "coax") tambo ine maviri coaxial uye insulated cylindrical simbi conductor kuti iite yakakosha unit (coaxial pair), uyezve imwe kana akawanda coaxial pairs.Yakashandiswa kuendesa data uye vhidhiyo masaini kwenguva yakareba.Ndiyo imwe yekutanga midhiya kutsigira 10BASE2 uye 10BASE5 Ethernet, uye inokwanisa kuwana 10 Mb/s kutapurirana kwemamita 185 kana 500 metres zvakateerana.Izwi rekuti "coaxial" rinoreva kuti iyo yepakati conductor yetambo uye shielding layer ine axis yakafanana kana yepakati poindi.Dzimwe tambo dzekoaxial dzinogona kunge dziine matinji ekudzivirira akawanda, senge mana-shielded coaxial tambo.Iyo tambo ine maviri akaturikidzana ekudzivirira, uye yega yega yekudzivirira inoumbwa nealuminium foil yakaputirwa newaya mesh.Iyi yekudzivirira hunhu yecoaxial tambo inoita kuti ive yakasimba anti-electromagnetic kupindira kugona uye inogona kufambisa masaini epamusoro-soro padaro refu.Kune akawanda akasiyana marudzi ecoaxial tambo dzinotsigira huwandu hwakasiyana hwehunyanzvi hwekushandisa, senge setiraiti yekutaurirana, maindasitiri, mauto uye marine application.Mhando nhatu dzakajairika dzeasiri-industrial coaxial tambo iRG6, RG11 uye RG59, iyo RG6 inonyanya kushandiswa muCCTV uye CATV application munzvimbo dzebhizinesi.Iyo yepakati conductor yeRG11 yakakora kupfuura RG6, zvinoreva kuti kurasikirwa kwayo kwekuisa kwakadzikira uye chinhambwe chekutumira chiratidzo zvakare zvakareba.Nekudaro, iyo gobvu RG11 tambo inodhura zvakanyanya uye isingachinjiki, izvo zvinoita kuti isakodzere kuiswa mune zvemukati maapplication, asi yakanyanya kukodzera kuisirwa kureba kwekunze kwekumisikidza kana kutwasanudza musana.Iko kuchinjika kweRG59 kuri nani pane iyo yeRG6, asi kurasikirwa kwayo kwakakwira, uye haiwanzo kushandiswa mune mamwe maapplication kunze kweiyo yakaderera-bandwidth, yakaderera-frequency analog vhidhiyo application (kumashure-kuona makamera mumotokari) ine chinhambwe chipfupi uye chishoma. slot nzvimbo.Iyo impedance yecoaxial tambo zvakare inosiyana - kazhinji 50, 75, uye 93 Ω.Iyo 50 Ω coaxial tambo ine yakakwirira simba rekugadzirisa simba uye inonyanya kushandiswa kune redhiyo transmitters, senge amateur radio michina, civil band radio (CB) uye walkie-talkie.Iyo 75 Ω tambo inogona kuchengetedza zvirinani simba rechiratidzo uye inonyanya kushandiswa kubatanidza akasiyana marudzi emidziyo yekugamuchira, senge cable terevhizheni (CATV) inogamuchira, yakakwirira-tsananguro terevhizheni seti uye edhijitari vhidhiyo rekodhi.93 Ω coaxial tambo yakashandiswa muIBM mainframe network muma1970 uye kutanga kwema1980, iine mashoma uye anodhura maapplication.Kunyangwe 75 Ω coaxial tambo impedance inowanzo sangana mumashandisirwo mazhinji nhasi, zvinofanirwa kucherechedzwa kuti zvese zviri muiyo coaxial tambo system zvinofanirwa kuve neiyo impedance yekudzivisa kutarisisa kwemukati pane yekubatanidza iyo inogona kukonzera kurasikirwa kwechiratidzo uye kuderedza vhidhiyo kunaka.Chiratidzo chedhijitari 3 (DS3) chinoshandiswa sevhisi yekufambisa yehofisi yepakati (inozivikanwawo seT3 mutsara) inoshandisawo coaxial tambo, kusanganisira 75 Ω 735 uye 734. Iyo yekuvhara kureba kwe735 tambo inosvika 69 metres, nepo iyo ye734 tambo inosvika 137 metres.RG6 tambo inogona zvakare kushandiswa kufambisa masaini eDS3, asi chinhambwe chekuvhara ipfupi.
DB dhizaini ine yakazara seti yecoaxial tambo uye kusangana, iyo inogona kubatsira mutengi kusanganisa yavo yega sisitimu.Ndokumbira tinya pazasi link kuti usarudze zvigadzirwa.Chikwata chedu chekutengesa chinogara chiripo kwauri.
Nguva yekutumira: Jan-17-2023