Unverified88% confidenceDecision RuleTime unknown
PoE供电场景需核对总功率预算：一台AP约15W、摄像头约6-12W，交换机PoE总功率应留20%余量，如接4个AP需≥72W预算选120W档
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified选PoE供电交换机给摄像头/AP供电时，需关注整机PoE供电总功率预算而非单口功率。例如8口标称每口30W但整机预算仅120W，实际只能带满4个满载设备91% similarUnverified带PoE供电的交换机看单口输出与整机功率预算：单口af=15.4W、at=30W、bt=60/90W，整机PoE总功率必须≥所有设备叠加，如8个AP各12W需整机≥96W PoE预算88% similarUnverified带PoE的交换机需按供电预算选：单口标准PoE(802.3af)最大15.4W，PoE+(802.3at)最大30W，PoE++(802.3bt)最大60-90W。摄像头选af/at即可，AP面板/云台球机需选at以上，整机总功率预算应≥各设备功率之和×1.288% similarUnverifiedPoE供电交换机选购必看总功率预算(PoE Budget)，而非端口数：8口PoE若总功率仅60W，实际只能带满2-3个AP(802.3at每口需30W)，需按设备数×单设备功率×1.3余量计算87% similarUnverified接入超过8个PoE摄像头时应关注交换机总PoE功率预算（PoE budget），单口标准802.3af最高15.4W、802.3at最高30W，需确保总功率≥摄像头数量×单机功耗×1.2余量86% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/477372API
curl https://kongchang.com/api/v1/knowledge/claims/477372MCP
get_claim(id=477372)