Shintshanisa amasheya PoEiyidivayisi esetshenziswa kabanzi embonini yezokuphepha namuhla, ngoba iyiswishi enikeza amandla kanye nokudluliswa kwedatha kumaswishi akude (njengamafoni we-IP noma amakhamera), futhi idlala indima ebaluleke kakhulu.Uma usebenzisa amaswishi e-PoE, amanye amaswishi e-PoE amakwe nge-PoE, kanti amanye amakwe nge-PoE+.Ngakho-ke, yini umehluko phakathi kweswishi ye-PoE ne-PoE+?

1. Kuyini ukushintshwa kwe-PoE

Amaswishi e-PoE achazwa ngokwezinga le-IEEE 802.3af futhi anganikeza amandla afinyelela kwangu-15.4W we-DC ngembobo ngayinye.

2. Kungani usebenzisa inkinobho ye-PoE

Emashumini ambalwa eminyaka adlule, bekujwayelekile ukuthi amabhizinisi abeke amanethiwekhi anezintambo amabili ahlukene, eyodwa eyamandla kanti enye ingeyedatha.Nokho, lokhu kwenezela ubunkimbinkimbi ekunakekeleni.Ukubhekana nalokhu, ukwethulwa kwe-PoE switch.Kodwa-ke, njengezidingo zamandla zezinhlelo eziyinkimbinkimbi nezithuthukile ezifana namanethiwekhi e-IP, i-VoIP, noshintsho lokubhekwa, ukushintsha kwe-PoE sekuyingxenye ebalulekile yamabhizinisi nezikhungo zedatha.

3. Iyini i-POE+ switch

Ngokuthuthukiswa kobuchwepheshe be-PoE, kuvela izinga elisha le-IEEE 802.3at, elibizwa nge-PoE+, futhi amaswishi asekelwe kuleli zinga abuye abizwe ngokuthi amaswishi e-PoE+.Umehluko omkhulu phakathi kwe-802.3af (PoE) ne-802.3at (PoE+) ukuthi amadivayisi kagesi e-PoE+ ahlinzeka ngamandla acishe abe kabili njengamadivayisi e-PoE, okusho ukuthi amafoni e-VoIP avame ukusetshenziswa, ama-WAP namakhamera we-IP azosebenza ezimbobeni ze-PoE+ .

4. Kungani udinga amaswishi e-POE+?

Ngokukhula kwesidingo sokushintshwa kwamandla aphezulu e-PoE emabhizinisini, amadivaysi afana namafoni e-VoIP, izindawo zokufinyelela ze-WLAN, amakhamera enethiwekhi namanye amadivaysi adinga ukushintshwa okusha okunamandla aphakeme okusekela, ngakho lesi sidingo siholele ngokuqondile ekuzalweni kokushintshwa kwe-PoE +.

5. Izinzuzo zokushintshwa kwe-PoE+

a.Amandla aphezulu: Amaswishi e-PoE+ anganikeza amandla afika kwangu-30W ngembobo ngayinye, kuyilapho amaswishi e-PoE anganikeza amandla afinyelela kwangu-15.4W ngembobo ngayinye.Amandla amancane atholakala kudivayisi enikwe amandla okushintsha kwe-PoE ngu-12.95W ngembobo ngayinye, kuyilapho amandla amancane atholakalayo okushintsha kwe-PoE+ angu-25.5W ngembobo ngayinye.

b.Ukuhambisana okuqinile: I-PoE ne-PoE+ iyashintsha yabela amazinga ukusuka ku-0-4 ngokuya ngokuthi mangakanani amandla adingekayo, futhi lapho idivayisi yokuhlinzeka ngogesi ixhunywe kudivayisi yokuphakela amandla, inikeza isigaba saso kudivayisi yokuphakela amandla ukuze idivayisi yokuphakela amandla inganikeza inani elifanele lamandla .Amadivayisi we-Layer 1, Layer 2, kanye ne-Layer 3 adinga ukusetshenziswa kwamandla okuphansi kakhulu, okuphansi, nokusesilinganisweni, ngokulandelana, kuyilapho amaswishi e-Layer 4 (PoE+) edinga amandla amaningi futhi ahambisana kuphela nempahla yamandla ye-PoE+.

c.Ukwehliswa okwengeziwe kwezindleko: Le PoE+ elula isebenzisa ikhebula evamile (Cat 5) ukuze isebenze nezixhumi ezibonakalayo ze-Ethernet ezijwayelekile, ngakho-ke alukho “intambo entsha” edingekayo.Lokhu kusho ukuthi ingqalasizinda yekhebula yenethiwekhi ekhona ingase isetshenziswe ngaphandle kwesidingo sokusebenzisa amandla kagesi aphezulu we-AC noma ukuxhuma okuhlukene kwamandla kuswishi eshumekiwe ngayinye.

d.Inamandla kakhulu: I-PoE+ isebenzisa kuphela ikhebula lenethiwekhi ye-CAT5 (enezintambo zangaphakathi ezingu-8, uma kuqhathaniswa nezintambo ezi-4 ze-CAT3), okunciphisa amathuba okuba khona kwe-impedance futhi kunciphise ukusetshenziswa kwamandla.Ngaphezu kwalokho, i-PoE+ ivumela abaphathi benethiwekhi ukuthi banikeze ukusebenza okwengeziwe, njengokuhlinzeka ngokuxilonga amandla okukude okusha, ukubika isimo, nokuphathwa kokunikezwa kwamandla (okuhlanganisa ukujikeleza kwamandla okukude kwamaswishi ashumekiwe).

Sengiphetha, ukushintshwa kwe-PoE kanye nokushintsha kwe-PoE+ kunganika amandla amaswishi enethiwekhi njengamakhamera enethiwekhi, ama-APs, namafoni we-IP, futhi abe nokuguquguquka okuphezulu, ukuzinza okuphezulu, nokungavikeleki okuphezulu ekuphazamisekeni kogesi.