The LSC model has been prepared to accommodate the new REFL_B photodetector. This includes

• DC readback through second port on LSC PD interface chasses in ISC-R1.
• This detector has its own RIN module.
• I/Q readbacks of both IMC and LSC-REFL_B using the new whitened DAQ interface of the 2-chn demodulators.
• Renamed REFLAIR_A_RF-ERR from the summing board into REFL_B_RF_ERR, so the I signal can be added to the CM board.
• Removed obsolete ALS-C_DIFF_A_RF_ERR.
• Removed obsolete communication module with EtherCAT.
• Added back Extra_AI_3, Extra_AI_4 and Extra_AO_3.

A corresponding change to the TwinCAT code has also been prepared.