# Today at 10H32 LT we swap PD1 and PD2 with respect to the PSTAB rampauto: we connect the PD1_AC channel to the Ramaputo input and the PD2_AC channel to the DAQ in place of PD1_AC (channel 9, ADC 18)

From now all PD2 related channels refer to the PD1 photodiode and vice & versa.

The guess that the glitches visible on PD1 channel and not on PD2 were specific to the PD2 path (from the PD to the rampauto. If right, now any glitch on PD2 photodiode path should not give any counter part on the IMC, this path is now under the name PD1_AC, PD1_DC.

Lets confirm this by checking the stat over the next days.

The PSTAB perf seems ~ unchanged (see plot), but a higher level of noise from 10 to 1 kHz. Might be connected to the diffrent noise floor among PD1 and PD2, to be checked.

Rem.: before the swap:  PD1_DC = 1.39 V & PD2_DC = 1.25 V. It means light change of the noise floor and OLTF gain.

# JP has changed the threshold of the "ENBL Cmd" within the two PSTAB rampauto. The threshold was set to 2,3 V for a signal ENBL/DISABLE of 2,5 V. Now the threshold is set to 1,3 V.

should be immuned against ENBL/DISABLE possible fluctuations.

This is to beat the complain that with the PSL_ELEC_1803_01 rampauto (swap by Antonino) the PSTAB open by itself.

We let the PSL_ELEC_1803_01 rampauto running