The ITMX PI path was measured during maintenance day driving from CDS and measuriung the quadrant outputs to the ESD. WP#5931
Specifically driving H1:SUS-ITMX_PI_OMC_DAMP_MODE1_DAMP_EXC with 80k counts, and measuring P2-P5 of D1600122 directly with an SR785.
In this case a splitter was created and used to allow the cable and ESD load to be included in the measurement. This configuration resulted in a 1.6% drop in drive amplitude of the LL quadrant fairly uniformly across all frequencies.
There is some confusion with the channel naming, on the chassis front panel left and right are switched relative to the model naming. The model names appear consistent with wiring diagram D1500464.
Otherwise these channels behave well.
There was a left -> right switch in the naming of the inputs and outputs of the PI ITM_DRIVER block used in h1susitmpi. ITMX and ITMY channels for linearisation, PWD and OUT and OUT_MON were incorrect.
This will be fixed next model restart.
