Fil, Patrick, Dave:

Following a BRS related power glitch at EX at 14:52 PDT this afternoon, the h1iscex computer lost connection with its IO Chassis. The front end recovery process was: stop models, take out of Dolphin fabric, power down computer, power cycle IO Chassis, power up computer. The system recovered with no problems.

In addition to the h1iscex IO Chassis, the following are also powered by the 24V power strip in the ISC rack; the two RF-Oscillators and the three Slow-Controls Chassis (End Station 2, End Station3, ISC Common). The attached dataviewer plot  shows the IOP model going down at 14:52 PDT (and latching off until I rebooted) and a beckhoff temperature signal momentarily glitching and recovering.

Fil is investigating the power glitch.