Weird Voltages in a PoE Camera System

It seems that there is a trend to convert video systems over from an old, all-analog system to a modern, IP-based system with cameras powered over the Ethernet line using PoE (Power over Ethernet).

Weird AC Voltages in a PoE Camera System post at Control Geek Blog talks about an interesting PoE (Power over Ethernet) issue I found with some IP cameras and some switches.

Weird AC Voltages in a PoE Camera System–Followup gives some more details and analysis of the problem. And if you are really interested in the details check also Interesting PoE problem discussion at The Show Control Mailing List.

1 Comment

  1. High power PoE and HDBaseT « Tomi Engdahl’s ePanorama blog says:

    [...] data. This technology is especially useful for powering IP telephones, wireless LAN access points, cameras with pan tilt and zoom (PTZ), remote Ethernet switches, embedded computers, thin clients and [...]


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