Dhinaca la socodka amniga, aalado badan oo shabakadeed oo hadda ku jira ayaa isticmaala tamarta PoE. Dhismaha kormeerka shabakada, si loo yareeyo kharashyada fiilooyinka oo ay ka dhigto mid ku habboon oo degdeg ah, shirkadaha injineernimada intooda badani waxay tixgelin doonaan isticmaalka tamarta PoE, taas oo ah, isticmaalka PoE ee qalabka ilaalinta tamarta. Haddaba, imisa qalab ayaa keeni kara korontada beddelka warshadaha PoE?

1. PoE beddelka heerka sahayda korontada

Si aad u aragto inta kamaradood ee isku mar ku shaqayn kara PoE-ga, waa in la tixgeliyo laba dhinac: heerka korantada ee beddelka PoE iyo wadarta guud ee sahayda korontada ee PoE-ga. Awoodda koronto ee beddelka PoE waxaa loo fahmi karaa inay tahay koronto hal deked ah oo ah beddelka PoE. Waxaa jira laba heer oo loogu talagalay furayaasha PoE kuwaas oo caan ka ah suuqa, IEEE802.3af iyo IEEE802.3at. Heerka IEEE802.3af wuxuu qeexayaa sahay koronto ah 15.4W, iyo IEEE802.3at heerka wuxuu qeexayaa sahay koronto ah ilaa 30W. Sababo la xiriira heerarka kala duwan ee korontada, sahayda hal deked ayaa sidoo kale ka duwan. Tusaale ahaan, awoodda kamaradu waa 9W, iyo af-beddelka caadiga ah ee PoE waa la isticmaali karaa; Haddii awoodda kamaradu ay tahay 20W, waxaad u baahan tahay inaad isticmaasho furaha PoE ee caadiga ah; Haddii awoodda kamaradu ay ka badan tahay 30W, waxaad u baahan tahay inaad isticmaasho moduleka tamarta PoE ee u go'an si aad u bixiso tamarta.

Guud ahaan, beddelka PoE ee taageera af iyo heerarka sahayda korantada ayaa leh sahay koronto oo iskiis ah. Tusaale ahaan, haddii ay ku xiran tahay qalab 5W, waxay bixisaa 5W oo awood ah; Haddii ay ku xiran tahay qalab 20W, markaas waxay bixisaa 20W oo awood ah.

2. Wadarta guud ee tamarta warshadaha PoE

Awoodda guud ee wareejinta PoE ee warshadaha waa tilmaame aad u muhiim ah, oo si toos ah ula xidhiidha inta kamaradaha la keeni karo. Qaadashada 24-deked PoE oo leh koronto ah 400W, wadarta guud ee tamarta PoE-ga waxay ku saabsan tahay 370W ka dib markii ay meesha ka saartay khasaaraha.

Marka la eego heerka IEEE802.3af, waxa ay siin kartaa 24 dekedood (370/15.4=24), taas oo ah, waxa ay siin kartaa koronto 24 kamaradood isku mar, taas oo ah, koronto buuxda. Laakin haddii loo xisaabiyo si waafaqsan heerka IEEE802.3at ee hal deked koronto ah oo dhan 30W, isla markaasna, waxay awood siin kartaa oo keliya 12 dekedood ugu badnaan (370/30=12).

Isticmaalka dhabta ah, isticmaalka awoodda ugu badan ee kamaradaha webka ee badan ayaa hooseeya, asal ahaan kama badna 15W. Haddii deked kasta oo PoE ay awood u leedahay iyada oo loo eegayo awoodda ugu badan (tusaale, 30W) wakhtigan, dekedaha qaar ayaa isticmaali doona awoodda PoE. Ma dhammaadaan, laakiin dekedaha qaar ma qaybin karaan koronta. Tusaale ahaan, qaar ka mid ah furayaasha PoE waxay taageeraan qoondaynta awoodda firfircoon, taas oo ka fogaan karta xaaladdan. Marka la iibsanayo furaha PoE, waxay kuxirantahay in dareemaha uu taageerayo qoondaynta awooda firfircoon, si deked kastaa u qoondayso oo kaliya awooda dhabta ah ee loo isticmaalo, si sahayda tamarta PoE-ga loo isticmaalo si hufan.

3. Wadaagista waayo-aragnimada isticmaalka furayaasha warshadaha ee PoE

a. Isticmaalka furayaasha taageeraya qaybinta tamarta firfircoon waxay sare u qaadi kartaa waxtarka sahayda korontada;
b. Marka hore faham isticmaalka tamarta ugu badan ee qalabka korontada ku shaqeeya, ka dibna u qaybi wadarta guud ee tamarta PoE beddelka isticmaalka tamarta ugu badan si aad u hesho inta qalab ee dawiishadaha PoE ay bixin karto.