NI PXI-2576 2-Wire Octal 8×1 Multiplexer Topology

The following figure represents the NI PXI-2576 in the 2-wire octal 8×1 multiplexer topology.

Making a Connection

When using the NI PXI-2576 as a 2-wire octal 8×1 multiplexer, the positive leads of the first bank (ch0+ through ch7+) route to com0+, and the negative leads of the first bank (ch0– through ch7–) route to com0–. The pair com0+ and com0– is addressed collectively as com0 in software. All other banks follow a similar routing scheme.

Both the scanning command, ch2->com0;, and the immediate operation, niSwitch Connect Channels VI or the niSwitch_Connect function with parameters ch2 and com0, result in the following connections:

signal connected to ch2+ is routed to com0+

signal connected to ch2– is routed to com0–

Pinout

The following figure identifies the pins for the NI PXI-2576 in the 2-wire octal 8×1 multiplexer topology.