Inkomba efihlekile ebaluleke kakhulu yokushintshwa kwe-POE yisamba samandla ahlinzekwa yi-POE.Ngaphansi kwezinga le-IEEE802.3af, uma isamba samandla we-POE weswishi ye-POE yembobo engu-24 ifinyelela ku-370W, lapho-ke ingahlinzeka ngezimbobo ezingama-24 (370/15.4=24), kodwa uma kuyimbobo eyodwa ngokuya nge-IEEE802.3at okujwayelekile, amandla amakhulu Ukunikezwa kwamandla kubalwa ku-30W, futhi kunganikeza kuphela amandla ezimbobeni eziyi-12 kakhulu ngesikhathi esifanayo (370/30=12).

Kodwa-ke, ekusetshenzisweni kwangempela, ukusetshenziswa kwamandla okuphezulu kwamadivayisi amaningi anamandla aphansi kuphansi kakhulu.Isibonelo, amandla ama-APs efrikhwensi eyodwa ngu-6~8W.Uma imbobo ngayinye ye-POE igcina ukunikezwa kwamandla ngokuya ngobukhulu bamandla ngalesi sikhathi, izovela Amandla e-POE kwezinye izimbobo awakwazi ukusetshenziswa, kuyilapho amandla ezinye izimbobo engakwazi ukunikezwa.Amaswishi amaningi e-POE asekela i-Dynamic Power Allocation (DPA).Ngale ndlela, imbobo ngayinye inikezela kuphela amandla asetshenziswe ngempela, ukuze amandla anikezwe ukushintsha kwe-POE asetshenziswe ngokuphumelelayo.

Ake sicabangele, uma sisebenzisa inkinobho ye-POE enezimbobo ezingama-24I-JHA-P420024BTHkanye nohlobo lwephaneli yebhendi eyodwa JHA-MB2150X.Sicabanga ukuthi amandla e-POE e-JHA-P420024BTH angu-185W (Qaphela: amandla okushintsha kwe-POE yamachweba angama-24 okuthi JHA-P420024BTH ngu-380W).Izimbobo ezingu-12 zinikwe amandla, futhi ngemva kokwamukelwa kokusatshalaliswa kwamandla ashukumisayo, ngenxa yokuthi ukusetshenziswa kwamandla okuphezulu kwe-JHA-MB2150X kungu-7W, i-JHA-P420024BTH inganika amandla amaphaneli angu-24 we-JHA-MB2150X (185/7=26.4).