PoE hloovyog cov cuab yeej siv dav hauv kev lag luam kev ruaj ntseg niaj hnub no, vim tias nws yog qhov hloov pauv uas muab lub zog thiab cov ntaub ntawv xa mus rau cov chaw taws teeb hloov pauv (xws li IP xov tooj lossis lub koob yees duab), thiab ua lub luag haujlwm tseem ceeb heev.Thaum siv PoE keyboards, qee qhov PoE keyboards raug cim nrog PoE, thiab qee qhov cim nrog PoE +.Yog li, qhov txawv ntawm PoE hloov thiab PoE + yog dab tsi?

1. Dab tsi yog qhov hloov pauv PoE

PoE keyboards yog txhais los ntawm IEEE 802.3af tus qauv thiab tuaj yeem muab tau txog 15.4W ntawm DC lub zog rau ib qhov chaw nres nkoj.

2. Vim li cas thiaj siv PoE hloov

Ob peb xyoos dhau los, nws yog ib qho uas cov lag luam tau tso ob lub xov tooj sib cais, ib qho rau lub zog thiab lwm yam rau cov ntaub ntawv.Txawm li cas los xij, qhov no ntxiv complexity rau kev kho.Txhawm rau hais qhov no, kev taw qhia ntawm PoE hloov.Txawm li cas los xij, raws li lub zog xav tau ntawm cov txheej txheem nyuaj thiab qib siab xws li IP tes hauj lwm, VoIP, thiab kev soj ntsuam kev hloov pauv, PoE keyboards tau dhau los ua ib feem tseem ceeb ntawm kev lag luam thiab cov chaw khaws ntaub ntawv.

3. POE + hloov yog dab tsi

Nrog kev txhim kho ntawm PoE thev naus laus zis, IEEE 802.3at tus qauv tshiab tshwm sim, hu ua PoE +, thiab cov keyboards raws li tus qauv no kuj hu ua PoE + keyboards.Qhov sib txawv tseem ceeb ntawm 802.3af (PoE) thiab 802.3at (PoE +) yog tias PoE + cov khoom siv hluav taws xob muab yuav luag ob npaug ntau npaum li cov khoom siv PoE, uas txhais tau hais tias feem ntau siv VoIP xov tooj, WAPs thiab IP koob yees duab yuav khiav ntawm PoE + chaw nres nkoj.

4. Vim li cas koj thiaj xav tau POE + keyboards?

Nrog rau qhov kev thov loj dua rau lub zog PoE hloov pauv hauv kev lag luam, cov khoom siv xws li VoIP xov tooj, WLAN cov ntsiab lus nkag, lub koob yees duab network thiab lwm yam khoom siv xav tau cov hloov tshiab nrog lub zog siab dua los txhawb, yog li qhov kev thov no ncaj qha coj mus rau qhov yug ntawm PoE + keyboards.

5. Qhov zoo ntawm PoE + keyboards

ib.Lub zog siab dua: PoE + keyboards tuaj yeem muab tau txog 30W ntawm lub zog ntawm ib qhov chaw nres nkoj, thaum PoE hloov pauv tuaj yeem muab tau txog 15.4W ntawm lub zog ib qhov chaw nres nkoj.Lub hwj chim tsawg kawg nkaus muaj nyob rau ntawm lub tshuab hluav taws xob rau PoE hloov yog 12.95W ib qhov chaw nres nkoj, thaum lub hwj chim tsawg kawg nkaus muaj rau PoE + hloov yog 25.5W ib qhov chaw nres nkoj.

b.Kev sib raug zoo muaj zog: PoE thiab PoE + hloov pauv faib qib los ntawm 0-4 raws li lub zog xav tau ntau npaum li cas, thiab thaum lub tshuab hluav taws xob txuas nrog lub tshuab hluav taws xob, nws muab nws chav kawm rau cov khoom siv hluav taws xob kom cov khoom siv hluav taws xob. tuaj yeem muab qhov tseeb ntawm lub zog.Txheej 1, Txheej 2, thiab Txheej 3 cov khoom siv yuav tsum tau siv hluav taws xob tsawg, tsawg, thiab nruab nrab, raws li, thaum Layer 4 (PoE +) hloov pauv yuav tsum muaj lub zog ntau thiab tsuas yog siv tau nrog PoE + cov khoom siv hluav taws xob.

c.Kev txo nqi ntxiv: Qhov yooj yim dua PoE + no siv tus qauv cabling (Cat 5) los ua haujlwm nrog Ethernet interfaces zoo tib yam, yog li tsis tas yuav tsum muaj "xov tshiab".Qhov no txhais tau hais tias kev sib txuas hauv network uas twb muaj lawm tuaj yeem siv tau yam tsis tas yuav tsum tau khiav high-voltage AC fais fab lossis cais fais fab sib txuas rau txhua qhov hloov pauv.

d.Muaj zog dua: PoE + tsuas yog siv CAT5 network cable (uas muaj 8 cov xov hlau sab hauv, piv rau 4 xov hlau ntawm CAT3), uas txo qhov muaj peev xwm ntawm impedance thiab txo lub zog noj.Tsis tas li ntawd, PoE + tso cai rau cov thawj coj hauv lub network los muab kev ua haujlwm ntau dua, xws li muab cov kev kuaj xyuas hluav taws xob hauv thaj chaw deb tshiab, qhia txog xwm txheej, thiab kev tswj fais fab (nrog rau cov chaw taws teeb ntawm lub zog hluav taws xob ntawm cov keyboards embedded).

Hauv kev xaus, PoE keyboards thiab PoE + keyboards tuaj yeem siv lub zog hloov pauv xws li lub koob yees duab network, APs, thiab IP xov tooj, thiab muaj kev hloov pauv siab, kev ruaj ntseg siab, thiab kev tiv thaiv siab rau kev cuam tshuam electromagnetic.