david.barker@LIGO.ORG - posted 13:04, Friday 16 August 2019 - last comment - 14:30, Friday 16 August 2019(51331)
PSL front end models are down
Investigating and restarting.
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Peter, Richard, Dave:
Looks like we have lost a 16bit DAC, only 3 are visible.
First thing we are trying, complete power cycle of computer and IO Chassis. Luckily h1psl0 has been take off the Dolphin fabric, so not need to worry about that.
My first indication of this was that all the non-laser PSL MEDM screens froze. as I pulled up the FSS screen to check the reference cavity transmission and admired the smoke billowing from the monitor on the wall.