NI PXI-2529 2-Wire 8×16 Matrix Topology

The TB-2635 terminal block creates a 2-wire 8×16 matrix topology with the NI PXI-2529. The following figure represents the NI PXI-2529 in the 2-wire 8×16 matrix topology.

Making a Connection

The NI PXI-2529 combined with the NI TB-2635 creates an 8×16 matrix. In this topology you can connect any row to any column. When connecting signals to r1, you would connect them to R1+ and R1– in the terminal block. When connecting signals to c0, you would connect them to C0+ and C0– in the terminal block.

You can connect the channels of the NI PXI-2529 using the niSwitch Connect Channels VI or the niSwitch_Connect function. For example, to connect row 1 to column 1, call the niSwitch Connect Channels VI or the niSwitch_Connect function with the channel 1 parameter set to r1 and the channel 2 parameter set to c1.

When scanning the NI PXI-2529 in 8×16 matrix topology, a typical scan list entry could be r5->c1;. This entry routes the signal connected to row 5 to column 1.

Bank Connection Diagram

Terminal Block Connections

The NI TB-2635 terminal block creates the following connections or relabels pins to operate the NI PXI-2529 as a 2-wire 8×16 matrix. Refer to the Pinout below for pin locations.

The following table lists the pins the NI TB-2635 terminal block shorts and the column connections created. If you do not use the NI TB-2635 terminal block, the pins can be shorted externally.

The following table lists the pins and their associated row connection.

Pinout

The following figure identifies the pins for the NI PXI-2529.