National Instruments Module SCXI-1125 - Manual (Page 37)

Chapter 4 Theory of Operation
SCXI-1125 User Manual 4-4 ni.com
Theory of Parallel Hardware Operation
In parallel mode, the CH0 signal on the rear signal connector is configured
as the output of the SCXI-1125 analog input channel 0. The rear signal
connector carries each of the analog outputs of the SCXI-1125 to the
connected DAQ device. You can use an SCXI-1180 feedthrough connector
to make each of the outputs available at the front of the chassis; which is
useful for cascading these signals to other modules for additional signal
conditioning purposes. Parallel mode allows you to bypass scanning and
you are not limited by the settling time required by the multiplexer of
SCXI-1125. You can scan the channels more accurately at a faster rate,
depending on which E/M Series DAQ device you connect to the module.