J. Kissel, A. Pele, R. DeRosa

(c.f. LHO aLOG 14086)

After having spoken with the LLO team, Ryan informed me that he *did* in fact have to take considerable effort to re-arrange his sensor-correction STS2 readout system after initial install before he could use it. Regrettably, he hasn't written up any aLOGs or documentation on *how* his system is connected.

After a few more hours in the EE room, with new understanding of what was originally intended, and following cables through zipties and cable racks, I now understand that indeed the bulk of the problem is in the front-end models, AND that the HAM45 rack cables were just down-right disconnected at their AA chassis inputs for some reason. I've plugged them back in, and as suggested by Ben, in the order that the HAM16 wiring diagram (D1101584) suggests, such the DuoTone channels remain un-over-written, i.e. now ALL HAM ISIs and HAM HPIs have the following cable arrangment:
ADC_0_24   STS A X
ADC_0_25   STS A Y
ADC_0_26   STS A Z

ADC_1_24   STS B X
ADC_1_25   STS B Y
ADC_1_26   STS B Z

ADC_1_24   STS C X
ADC_1_25   STS C Y
ADC_1_26   STS C Z

As such, I don't think I need any more analog changes to the system, but it's time to dig into the top-levels of the front end models, now that I understand how the analog system is wired up. I attach a system drawing which I intend to follow, which is now a part of ECR E1400386, II 942, all cited in Work Permit 4876. I'll begin work as soon as I'm authorized, and Ben will begin updating the drawings accordingly.