National Instruments 1142 用户手册

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Chapter 4
Theory of Operation
© National Instruments Corporation
4-17
channel 0 and continues. You can program the SCXI-1141/1142/1143 
module to start scans with any channel.
Parallel Mode
When the OUTPUT signal is configured as the rear connector output of 
channel 0, the rear signal connector simultaneously carries each of the rear 
connector outputs of the SCXI-1141/1142/1143 module channels on a 
different pin, and the module is in parallel mode. In this mode, you can use 
an SCXI-1180 feedthrough panel to make each of the outputs available at 
the front of the chassis. A DAQ device cabled to an SCXI-1141/1142/1143 
module in parallel mode reads a separate output signal from the module on 
each of its analog inputs. You cannot multiplex the parallel outputs of a 
module onto the SCXIbus. Only a DAQ device directly cabled to the 
module has access to the outputs.