Reports until 19:31, Tuesday 22 January 2019
H1 CDS
david.barker@LIGO.ORG - posted 19:31, Tuesday 22 January 2019 (46591)
h1psliss and h1lsc Dolphin errors due to disconnected cable

Keita, Dave:

A reminder that the Dolphin cable was disconnected from h1psl0 in Oct 2018, back when the Dolphin network was not stable. The PSL-ISS model uses Dolphin IPC to receive the 3rd loop photo-diode signals from both ends, and the PSL-DBB model sends its jitter signal to the LSC. I had notched out these continuous Dolphin receive errors from CDS-Overview and the IPC-Overview, it is still visible on the GDS-TP screens. It is good practice after maintenance to check only the expected channels are in error (see attached).

Images attached to this report