J. Kissel, K. Venkateswara As described in LHO aLOG 14521, we've added an IPC connection from top-level of ISI to HPI for the GND super-sensor to be used for sensor correction to the h1isietmx and h1hpietmx front end models. In addition, we've cleaned up the few channels: - H1:ISI-GND_BRS_ETMX_DAMPCTRLMON1 --> H1:ISI-GND_BRS_ETMX_DAMPCTRLMON - H1:ISI-GND_SENSCOR_ROTVELCORR --> H1:ISI-GND_SENSCOR_ETMX_STS_X_ROTVEL - H1:ISI-GND_SENSCOR_TORQUECORR --> H1:ISI-GND_SENSCOR_ETMX_STS_X_TORQUE Finally, we've updated the BRS OVERVIEW screen to reflect the new channel changes, and confirmed that both ISI and HPI see the tilt-corrected ground super sensor in STSC, H1:HPI-ETMX_STSINF_C_X_OUT or H1:ISI-ETMX_ST1_GNDSTSINF_C_X_OUT calibrated into 1 [(nm/s) / ct] (above 4 [mHz] is you really care that low). Note that this requires the calibration filters in the GNDSTSINF X bank to be turned OFF. This change required - Making sure the current configuration sticks - Capture of a new safe.snap - Commit the current filter file - Recompiling, Reinstalling, Restarting, Restoring the h1isietmx and h1hpietmx models - Restart of the frame builder / data concentrator / h1dc0 - Committing h1isietmx and h1hpietmx top-level models to the userapps repo. This opens and closes Work Permit 4906. P.S. Unfortunately, I didn't realize until writing this aLOG that because of our "store the GND STSs once and only once" policy, we're not storing any of the ETMX STS C channels separately in the frames. The only version of the tilt-corrected GND super-sensor stored in the frames (and regrettably only in the commissioning frames) is H1:ISI-ETMX_ST1_SENSCOR_GND_STS_X_IIRHP_IN_DQ or H1:HPI-ETMX_SENSCOR_X_FIR_IN1_DQ which is after the H1:HPI-ETMX_STS_INMTRX, or H1:ISI-ETMX_ST1_STS_INMTRX, so it relies on the matrix being selected to use STS C in the X direction. This is currently the case, but we'll most likely consider added a separate test point and channel in the GND_SENSCOR bank next week.