NI 5142 Front Panel

This section describes the connectors on the hardware front panel of the NI 5142 IF digitizer module. All inputs and outputs are AC-coupled.

Connector	Function
CH 0, CH 1	Analog input connection; digitizes data and triggers acquisitions Note  For NI 5661 operation, NI recommends that you use CH 0 to connect the NI 5142 to the NI 5600 downconverter.
TRIG	External analog trigger connection.
CLK IN	Imports an external reference or sample clock to the digitizer
CLK OUT	Exports the digitizer reference or sample clock
AUX I/O	Provides access to the external digital trigger lines, PFI 0 and PFI 1 (with optional cable)

Note  Refer to the NI PXI/PCI-5142 Specifications for more information on NI 5142 connectors.