Peter Raffai, Jim Batch, Dave Barker.

Peter replaced both IRIG-B systems on H2 with new units which had the latest code. These units are located in the LVEA and EY. Also the comparitor in EY was replaced. This change requried a power cycle of all H2 front end systems, which revealed some other problems which were lurking, namely...

h2pemeyaux model was running on h2pemey as well as h2pemeyaux. Turns out creating a second EY PEM system by adding "aux" to the end of the name found a "grep" type bug in the front end start up code. I made a fix to h2boot and now h2pemeyaux only runs on the machine h2pemeyaux. I would be very wary of Newtonian Noise channels while the model was duplicated.

temporary ETMY opt lev model using same DCUID as IOP SEI BSC6. My bad, because the SUS ETMY mode is not ready for the optical lever signals, I installed a temporary opt lev model as I did for ITMY, but failed to see that there were no spare DCUIDs on h2susb6 and bled into h2seib6's space. I have removed the opt lev model for now.

power cord from wall feeding DC power can get unplugged easily when working behind the racks at EY. This bit us, again.

EY PEM data invalid, ISC model took over first two ADCs on h2pemey. Found the reason PEM data at EY has been bad since May 15th is that the new ISC model install re-allocated the ADCs in this front end. For now we reinstated PEM as the first ADC and moved the ISC to the next two ADC cards. I made code changes to h2iscey accordingly and rebuilt.

PEM filters come up default=off. I made safe.snap files to fix this.