Iyo yakachengeteka yekufambisa chinhambwe chePOE simba rekupa 100 metres, uye zvinokurudzirwa kushandisa Katsi 5e copper network tambo. Zvinogoneka kufambisa DC simba neyakajairwa Ethernet tambo kwechinhambwe chakareba, saka nei kureba kwekufambisa kuchiganhurwa kusvika ku100 metres? Tevere, isu tichatevera JHA TECH kuti tidzidze zvakawanda nezve yakachengeteka yekufambisa chinhambwe chePOE magetsi.

Icho chokwadi ndechekuti iyo yakakura yekufambisa kureba kwePOE switch inonyanya kuenderana nedanho rekufambisa data. Kana kureba kwekufambisa kuchipfuura 100 metres, kunonoka kwedata uye kurasikirwa kwepaketi kunogona kuitika. Naizvozvo, kureba kwekutapurirana hakufanirwe kudarika 100 metres mukuita chaiko kwekuvaka.

Zvakadaro, patova nemamwe maPOE switch ane chinhambwe chekufambisa chinosvika 250 metres, izvo zvinogona kugutsa kureba kwemagetsi magetsi. Zvinotendwa zvakare kuti nekuvandudzwa kwePOE magetsi emagetsi tekinoroji munguva pfupi iri kutevera, kureba kwekufambisa kuchawedzerwa kure.

Iyo POE IEEE 802.3af yakajairwa inoda kuti simba rekubuda rePSE rinobuda chiteshi 15.4W kana 15.5W, uye simba rakagamuchirwa remuchina wePD mushure me100 metres yekutapurirana harifanirwe kunge riri pasi pe12.95W. Zvinoenderana ne802.3af yakajairika ikozvino kukosha kwe350ma, kushorwa kweiyo 100-mita network tambo inofanira kunge iri (15.4-12.95W)/350ma = 7 ohms kana (15.5-12.95)/350ma = 7.29 ohms.

Iyo yakajairwa netiweki tambo inowanzosangana nezvinodiwa izvi. Iyo IEEE 802.3af POE yemagetsi chiyero pachayo inoyerwa neyakajairwa network tambo. Chikonzero chega chedambudziko rePOE simba rekupa network tambo zvinodiwa ndezvekuti tambo zhinji dzetiweki pamusika hadzisi-standard network tambo uye hadzina kugadzirwa zvakanyatsoenderana nezvinodiwa zveyakajairwa network tambo. Izvo zvisiri-standard network cable zvinhu pamusika zvinonyanya kusanganisira mhangura-clad simbi, mhangura-clad aluminium, copper-clad iron, etc. Aya matambo ane maitiro makuru ekupikisa uye haana kukodzera kuPOE magetsi. POE magetsi anofanirwa kushandisa tambo yetiweki yakagadzirwa neokisijeni-isina mhangura, kureva, tambo yakajairwa network.

POE magetsi ekupa tekinoroji ine zvakakwirira zvinodiwa kune waya. Zvinokurudzirwa kuti mukutarisa mapurojekiti, haufanirwe kuchengetedza mari pawaya.