J. Kissel, J. Warner, H. Radkins

This completes the changes needed at LHO for the GND STS Kerfuffle, Integration Issue 942, and completes activity for Work Permit 4876. We can't yet close ECR E1400386, or the integration issue, because Ben needs to update the system wiring diagrams, but those should be very coming soon.

After moving all STS distribution chassis outputs into the now-pre-defined AA chassis spigots (see drawing in E1400386 for reference, for now, until the drawings get updated), then completing all model changes to include all three corner-station, sensor-correction, STSs in every HPI and ISI last night (see LHO aLOG 14264), Hugh, Jim, and I took on the task of installing the new code. We

- used guardian to ramp down each chamber, taking the manager to OFFLINE, where applicable, and where not, bringing each ISI and HPI to the READY state and turning OFF the master switch.
- turned OFF all HPI and ISI sensor correction filters by zeroing the MATCH filter bank gain and turning OFF the output switch.
- captured a new safe.snap, using
      ]$ makeSafeBackup ${subsystem} ${modelName}
  and committed to the appropriate "burtfiles" directory in the userapps repo
- *** Made sure all filter files are softlinks to the userapps repo, and repo versions were up-to-date and committed
      -- we found that the majority of the HPI and ISI filter files (both .txt and .fir) were NOT softlinks to the userapps repo. To fix, we
          - Copied any non-softlink files to the appropriate filterfiles directory in the userapps repo
          - Committed the files
          - removed the files from the chans directory
          - created the softlink in the chans directory to the userapps repo, e.g.
              ]$ cd /opt/rtcds/lho/h1/chans/
              ]$ ln -s /opt/rtcds/userapps/release/${subsystem}/h1/filterfiles/${filterfilename} ./${filterfilename}
- re-compiled and installed the new model code
- restarted the front-end code
- untripped all watchdogs
- cleared any IPC errors on HPI/ISI/SUS by hitting the "diag reset" button on everyone's GDS_TP screen.
- used guardian manager to bring up each chamber, takingthe manager to ISOLATED, where applicable, and where not HPI to ROBUST_ISOLATED and ISI to HIGH_ISOLATED
- Restarted the frame builder / data concentrator
    ]$ telnet h1dc0 8087
    daqd> shutdown
- Confirmed that every corner station HPI and ISI reads out the correct GND STS on the correct channel using dataviewer and me zydeco dancing in proximity to each sensor successively.


Note that *** may need some attention when loading in new filters. It's unclear yet what quack (the matlab method of installing new filters that really only the SEI team uses) will do when loading filters. It currently installs new filters into the /opt/rtcds/${site}/${ifo}/chans/ directory. Will it over write the soft-link? Will it follow the softlink? I think this has been checked that it won't break anything, but it's something we should pay attention to in the future. It's especially interesting to see if the .fir filters can handle it.

Laissez les Bon Temps Roulet!