Today I added the ADC connections to the HAM2 ISI model for the St0 L4Cs that we added in that chamber during the vent. To connect these sensors we are adding a D1500490 L4C interface chassis into the SEI-C2 rack. The output of this chassis is 3x db9 connectors that carry the seismometer and pressure channels. The last 2 db9 connectors are free on each of the HAM2 AA chassis, but Dave reminded me that Ch 32 (or 31 depending on your math) carries the duotone signal. So the corner 1 L4Cs are on ADC0 ch 24-27, corner 2 on ADC1 ch 24-27 and corner 3 L4Cs are on ADC1 ch 28-31. We still have ADC0 ch 28-30 free if someone wants to plug something in. Fil is working on getting ready to add the chassis to the rack and cable everything up. After that, I don't think I will be ready to commission the feedforward until after I can unlock HEPI.

This model change will go in when we restart HAM2&3 tomorrow morning.