The application I have (outdoor audio system) needs as much power as possible for peak power situations. This PoE splitter from LINOVISION is advertised as supporting a max of 25W. Unfortunately, it shuts down above 23W.
I always thoroughly test PoE devices prior to putting them into service, as I've had devices fail in the past and take out other devices in the system. I have two different styles of PoE 802.3bt injectors (one that is a midspan and one that is a switch). Both have been tested extensively and appear to properly comply with the 802.3bt standard, so I use them as a PSE (power sourcing equipment) for PoE device testing.
I have a power load tester that has a digitally-controllable load. While it isn't a "calibrated" device, I have verified using other devices (e.g., Fluke multimeters) that it accurately measures DC current and voltage, and therefore properly calculates power draw. Using this tester, I found that this LINOVISION PoE splitter shuts down once you cross over 23W (0.96A at 24VDC). Most of the other brands of splitters that I have tested have had 5-10% of overhead above their advertised rated output (e.g., a 25W output might work up to 26-27W before cutting out. Not so with the LINOVISION, at least not with the unit I received. I'm going to return it for a replacement to see if another one performs to spec.
Otherwise, the product seems to work as advertised (12V/24V hot switch, Gigabit connectivity, proper negotiation on 802.3af/bt).
