The GOL/AUX Board has two main functions:
One auxiliary board will be used for each OT FE Electronics box,
located on the rim of the box itself.
it distributes the bias voltage, the fast and the slow control signals to the
OTIS and ASDBLR boards
it transforms parallel electrical timing and status data from the OTIS
Board into serial optical data via the GOL ASIC
Useful links to the Optical Receiver Card: