This Bipolar/TTL Fanout, hardware accepts single ended, serial, bipolar (up
to +/- 12V) or NRZ signals level input through a BNC connector on the
rear panel. Input termination can be selected from the front panel by
a rotary switch, which provides high and low termination for bipolar
or TTL input. Reference level can be adjusted to alter the input threshold.
A red ACTIVITY LED indicates presence of input.
(4) single ended (NRZ) outputs are provided through BNC connectors
on the rear panel. These outputs provide the same data stream as input
with minimum propagation delay. Outputs can be inverted from the front
panel, by a locking toggle. Inversion for each output can be overridden
at the board level.