Don sanin matsakaicin nisan watsawa na PoE, dole ne mu fara gano menene mahimman abubuwan da ke ƙayyade matsakaicin nisa.A haƙiƙa, yin amfani da madaidaitan igiyoyin Ethernet (Twisted pair) don watsa wutar lantarki na DC ana iya ɗaukar su ta nisa mai nisa, wanda ya fi nisan watsa siginar bayanai.Saboda haka, matsakaicin nisa na watsa bayanai shine maɓalli.

1. Matsakaicin nisa na watsa bayanan kebul na cibiyar sadarwa

Mun san ƙarin game da hanyar sadarwar san cewa murɗaɗɗen biyu suna da nisan watsawa "wanda ba za a iya jurewa ba" na "mita 100".Ko Category 3 Twisted biyu tare da 10M watsa kudi, Category 5 Twisted biyu tare da 100M watsa kudi, ko ma Category 6 Twisted biyu tare da 1000M watsa kudi, mafi tsawo tasiri watsa nisa ne 100 mita.

A cikin ƙayyadaddun ƙayyadaddun wayoyi, ana kuma buƙata a sarari cewa igiyoyin da ke kwance ba za su wuce mita 90 ba, kuma tsayin haɗin haɗin bai kamata ya wuce mita 100 ba.Wannan ya ce, mita 100 shine iyaka ga Ethernet mai waya, wanda shine tsayin hanyar haɗi daga katin sadarwar zuwa na'urar cibiyar.

2. Ta yaya kuka sami matsakaicin nisa na mita 100?

Menene ya haifar da babban iyaka na nisan watsawa na mita 100 na karkatattun biyu?Wannan yana buƙatar nutsewa mai zurfi cikin zurfin ka'idodin jiki na karkatattun biyu.Watsawar hanyar sadarwa shine ainihin watsa siginar cibiyar sadarwa akan layukan karkatattun.A matsayin siginar lantarki, lokacin da aka watsa shi a cikin layin da aka karkace, dole ne a yi tasiri da juriya da ƙarfin aiki, wanda ke haifar da raguwa da karkatar da siginar cibiyar sadarwa.Lokacin da karkatar da siginar ya kai wani matsayi, ingantaccen watsa siginar zai yi tasiri.Saboda haka, karkatattun biyun suna da iyakancewar nisa na watsawa.

3. Matsakaicin nisa na USB a lokacin ginawa na ainihi

Ana iya gani daga sama dalilin da yasa matsakaicin tsayin kebul na cibiyar sadarwa bai kamata ya wuce mita 100 ba yayin amfani da wutar lantarki na PoE.Koyaya, a cikin ainihin ginin, don tabbatar da ingancin aikin, gabaɗaya ya ɗauki mita 80-90.

Lura cewa nisan watsawa anan yana nufin matsakaicin ƙimar, kamar 100M.Idan an rage adadin zuwa 10M, yawanci ana iya tsawaita nisan watsawa zuwa mita 150-200 (ya danganta da ingancin kebul na cibiyar sadarwa).Saboda haka, nisan watsawar wutar lantarki na PoE ba a ƙayyade ta hanyar fasahar PoE ba, amma ta nau'i da ingancin kebul na cibiyar sadarwa.