After maintenance yesterday I looked at the 3 Gig E cameras on hte PSL.  One had been unplugged during the network switch power failure.  We were concerned too many things were drawing power over the POE and these were the last items plugged in so first out.  After replacing the power supply two of the cameras were restored.  The thirds was done around 1215 yesterday. I also did a hard reboot of the other cameras.  They all appear to be working again though I am not sure what was wrong with camera 28.  As of 1220 Tuesday all 3 were working.