Isalathisi esibaluleke kakhulu esifihliweyo sokutshintsha kwe-POE ngamandla onke anikezelwa yi-POE. Ngaphantsi komgangatho we-IEEE802.3af, ukuba unikezelo lwamandla lwe-POE lulonke lwe-24-port POE switch lufikelela kwi-370W, ngoko lunokubonelela ngamazibuko angama-24 (370/15.4=24), kodwa ukuba lizibuko elinye ngokwe-IEEE802.3at umgangatho, ubuninzi bamandla Unikezelo lwamandla lubalwa kwi-30W, kwaye lunokubonelela kuphela amandla kumazibuko ali-12 kakhulu ngexesha elinye. (370/30=12).

Nangona kunjalo, ekusetyenzisweni okwenyani, ukusetyenziswa kwamandla aphezulu kwizixhobo ezininzi zamandla aphantsi kuphantsi. Umzekelo, amandla e-APs ye-single-frequency yi-6 ~ 8W. Ukuba izibuko le-POE ngalinye ligcina unikezelo lwamandla ngokowona mandla maninzi ngeli xesha, liza kubonakala Amandla e-POE kwamanye amazibuko akanakusetyenziswa, ngelixa amandla amanye amazibuko engenakwabiwa. Iiswitshi ezininzi ze-POE zixhasa i-Dynamic Power Allocation (DPA). Ngale ndlela, izibuko ngalinye labela kuphela amandla asetyenzisiweyo ngokwenene, ukuze amandla anikezelwe lutshintsho lwe-POE asetyenziswe ngokufanelekileyo.

Masenze ingqikelelo, ukuba sisebenzisa i-24-port POE switchI-JHA-P420024BTHkunye nohlobo lwephaneli yeqela elinye JHA-MB2150X. Sicinga ukuba amandla e-POE e-JHA-P420024BTH yi-185W (Qaphela: amandla e-24-port POE switch JHA-P420024BTH yi-380W). Izibuko ze-12 zinikwe amandla, kwaye emva kokuhanjiswa kwamandla okuguquguqukayo kwamkelwe, ngenxa yokuba ukusetyenziswa kwamandla aphezulu kwe-JHA-MB2150X yi-7W, i-JHA-P420024BTH inokunika amandla iiphaneli ze-24 ze-JHA-MB2150X (185/7 = 26.4).