POE hloov tshuab thiab cov lus qhia zoo

CovPoE hloovyog ahloovuas txhawb nqa fais fab mov rau lub network cable. Piv nrog rau qhov dog dighloov, lub hwj chim txais lub davhlau ya nyob twg (xws li AP, lub koob yees duab digital, thiab lwm yam) tsis tas yuav tsum tau xaim hluav taws xob, thiab kev ntseeg siab ntawm tag nrho lub network yog siab dua.
Qhov sib txawv ntawm PoE keyboards thiab cov keyboards zoo tib yam
PoEhloovyog txawv ntawm qhov dog dighloov, PoE hloovtuaj yeem tsis tsuas yog muab qhov kev sib kis ntawm cov haujlwm zoo tib yamhloov, tab sis kuj muab lub zog muab kev ua haujlwm rau lwm qhov kawg ntawm lub network cable. Piv txwv li, muaj lub koob yees duab digital soj ntsuam (xav tau lub zog hluav taws xob ua haujlwm ib txwm), tab sis tsis txuas nrog lub zog hluav taws xob, tab sis txuas nrog ib qho kev sib txuas.hloovlos ntawm lub network cable. Hauv qhov no, lub koob yees duab tsis ua haujlwm. Yog hais tias lub koob yees duab tsis txuas nrog lub hwj huam mov, tab sis nws cov kis tau tus mob network cable txuas nrog rau lubPoE hloov, lub koob yees duab tuaj yeem ua haujlwm ib txwm.
PoE muab faib ua tus qauv thiab tsis yog tus qauv. Tus qauv yuav kuaj xyuas seb cov khoom siv txuas nrog lub network puas muaj PoE lub zog tau txais qhov kawg. Yog tias muaj, nws yuav siv tau, yog tias tsis yog, nws yuav tsis siv hluav taws xob thiab tsuas yog muab cov ntaub ntawv xa mus. Cov uas tsis yog tus qauv yuav raug muab ncaj qha nrog lub zog. Yog tias tsis pom qhov txuas no, cov khoom siv yuav raug hlawv.
POEhloovtechnology thiab qhov zoo
Muaj ob tus qauv rau lub ntsiab PoE hloov pauv hauv kev ua lag luam, IEEE 802.3af thiab 802.3at, uas feem ntau txhais lub zog ntawm lub zog ntawm 15.4W thiab 30W, tab sis vim qhov poob hauv cov txheej txheem sib kis, lub zog tiag tiag yog 12.95W. thiab 25.5W, ntsuas voltage yog DC 48v.
Thaum siv aPoE hloovuas txhawb nqa tus qauv IEEE802.3af, lub zog ntawm cov khoom siv fais fab tsis tuaj yeem tshaj 12.95W; Ib yam li ntawd, thaum siv PoEhloovntawm IEEE802.3at tus qauv, lub zog ntawm cov khoom siv hluav taws xob tsis tuaj yeem tshaj 25.5W.
Feem ntau, PoEhloovuas txhawb IEEE802.3af / ntawm tus qauv tib lub sijhawm, cov khoom siv hluav taws xob hloov tau. Piv txwv li, yog tias nws txuas nrog 5W ntaus ntawv, nws muab 5W ntawm lub zog; Yog tias nws txuas nrog 20W ntaus ntawv, ces nws muab 20W ntawm lub zog.
PoE keyboards yog cov keyboards uas txhawb nqa lub zog rau lub network cables. Piv nrog cov keyboards zoo tib yam, cov terminals (xws li APs, cov koob yees duab digital, thiab lwm yam) tsis tas yuav tsum tau xaim hluav taws xob, thiab muaj kev ntseeg siab dua rau tag nrho lub network. The PoEhloovtuaj yeem tsis tsuas yog muab cov kev sib kis tau zoo ntawm qhov qubhloov, tab sis kuj muab lub hwj huam mov muaj nuj nqi rau lwm kawg ntawm lub network cable.
PoE rov qab-kawg ntaus ntawv tsuas yog xav tau ib lub network cable, uas txuag tau qhov chaw thiab tuaj yeem txav tau ntawm qhov siab (yooj yim thiab yooj yim), txuag nqi.
Tsuav yog PoEhloovtxuas nrog UPS, nws tuaj yeem muab lub zog rau tag nrho cov khoom siv rov qab-kawg POE-txog thaum lub hwj chim tawm. Cov neeg siv tuaj yeem tuaj yeem sib xyaw cov khoom qub thiab cov khoom siv PoE hauv lub network, thiab cov khoom siv no tuaj yeem ua ke nrog Ethernet cables uas twb muaj lawm.