Sheila, Evan

The in-vac REFL9 phase shifter is now controllable from the control room.

The REFLAIR9 phase shifter already had a dsub cable running to the Beckhoff concentrator (cable 68, running into concentrator 3), but the REFL9 shifter did not. So we moved this cable over so that it controls the REFL9 shifter. We also moved the cable over by one slot on the concentrator. We flipped control of the REFL9 shifter from internal to external, and then moved the digital delay slider to match the delay given by the toggle switches (23.4 ns). So the LSC-REFL_A_RF9_PHASE channels now control the delay.

Then we locked PRX, drove a line in the PRM, and then verified that the delay shifting works from the control room.