Installing the Foscam FI8904W and FI8906W on the outside of a house. (SEE UPDATE BELOW)
UPDATE: After plugging my third Foscam into the PoE switch, the camera would work during the day, but stop working at night. I found that the switch was faulting on the third camera's port and cutting power. It turns out that the Foscam FI8906W camera draws about 10.6W of power when the IR lights turn on. This is far in excess of the stated 5.5W max power consumption. So the three Foscam cameras exceed the max 30W provided by the TrendNet TPE-S44 PoE switch, preventing me from running all three on the switch.
One workaround is to try and find another switch that can provide more power, such as the TP-LINK TL-SF1008P. The downside is that the TP-LINK has quite a few negative reviews, and I have had some issues with other TP-LINK products, so I'm going to avoid that particular option.
The other workaround is to purchase a PoE Injector. Foscam US sells what appears to be the LevelOne POI-2001 Gigabit PoE injector for the very reasonable price of $25. (less than half the price of Amazon)
http://foscam.us/products/active-poe-injector-98.html
I wish I would have known all of this in advance, but even if I had, I would be faced with the choice of paying $75 for three bulky PoE injectors, or $55 for the PoE switch and $25 for one injector--so it nets out to be the same.
For now I'm going to keep the TrendNet switch and order the one PoE injector.
Here are some day and night still images from one 8904 (Driveway1) and two 8906s:
https://www.dropbox.com/sh/d3nvaoa3y3akjb8/Ss1x83sjSN