Control Board (A4) Plug Jumpers -- Continued
With jumper in, round robin training is disabled.
With jumper in, the b' ind interval used to
inhibit endless loops in the round robin training
discipline is doubled
This jumper)er would be used
in long path delay channels as satellite.
With jumper in, UI timeout is 1.7 sec. With
jumper out, UI timeout is 6.8 sec at the 2400
With jumper in, CG turns off at an error rate of
approximately 1X10-3. With jumper out,
threshold is approximately 1X10-4.
With jumper in, all signal quality thresholds
including UI, CG, and quality indictors are
increased about an order of magnitude in error
rate over normal.
With jumper in, equalizer taps and receive
timing recovery updates are frozen and thus not
allowed to update under high error rate
With jumper out, CB drops during training and
CB Low During
follows CA. With jumpers in, CB follows CA
dependent on CA/CB delay, but does not drop
during training or test mode.