NI PXI-2532 1-Wire Dual 8×32 Matrix Topology

The NI TB-2644 terminal block creates a 1-wire dual 8×32 matrix topology with the NI PXI-2532. The following figure represents the NI PXI-2532 in the 1-wire dual 8×32 matrix topology.

Making a Connection

For bank 0, both the scanning command, b0r1->b0c1;, and the immediate operation, niSwitch Connect Channels VI or the niSwitch_Connect function with parameters b0r1 and b0c1, result in the following connection:

signal connected to B0R1 is routed to B0C1

For bank 1, both the scanning command, b1r1->b1c1;, and the immediate operation, niSwitch Connect Channels VI or the niSwitch_Connect function with parameters b1r1 and b1c1, result in the following connection:

signal connected to B1R1 is routed to B1C1

Note  While you can, for example, connect B0R1 to B0C0, you cannot connect B0R1 directly to B1C1 in this topology.

Terminal Block Connections

The NI TB-2644 terminal block connects the banks of the NI PXI-2532 to create the 1-wire dual 8×32 matrix topology. The following figure illustrates how the native banks on the NI PXI-2532 connect using the NI TB-2644 to create the 1-wire dual 8×32 matrix topology.

Bank Connection Diagram

The following tables list the pin assignments for the NI TB-2644 column connection board.

Column Connection Board Column Pin Assignment

Pin Number	Column	Pin Number	Column	Pin Number	Column	Pin Number	Column
J3 Pin 1	B0C0	J3 Pin 9	B0C4	J3 Pin 17	B0C8	J3 Pin 25	B0C12
J3 Pin 2	B1C0	J3 Pin 10	B1C4	J3 Pin 18	B1C8	J3 Pin 26	B1C12
J3 Pin 3	B0C1	J3 Pin 11	B0C5	J3 Pin 19	B0C9	J3 Pin 27	B0C13
J3 Pin 4	B1C1	J3 Pin 12	B1C5	J3 Pin 20	B1C9	J3 Pin 28	B1C13
J3 Pin 5	B0C2	J3 Pin 13	B0C6	J3 Pin 21	B0C10	J3 Pin 29	B0C14
J3 Pin 6	B1C2	J3 Pin 14	B1C6	J3 Pin 22	B1C10	J3 Pin 30	B1C14
J3 Pin 7	B0C3	J3 Pin 15	B0C7	J3 Pin 23	B0C11	J3 Pin 31	B0C15
J3 Pin 8	B1C3	J3 Pin 16	B1C7	J3 Pin 24	B1C11	J3 Pin 32	B1C15

Pin Number	Column	Pin Number	Column	Pin Number	Column	Pin Number	Column
J2 Pin 1	B0C16	J2 Pin 9	B0C20	J2 Pin 17	B0C24	J2 Pin 25	B0C28
J2 Pin 2	B1C16	J2 Pin 10	B1C20	J2 Pin 18	B1C24	J2 Pin 26	B1C28
J2 Pin 3	B0C17	J2 Pin 11	B0C21	J2 Pin 19	B0C25	J2 Pin 27	B0C29
J2 Pin 4	B1C17	J2 Pin 12	B1C21	J2 Pin 20	B1C25	J2 Pin 28	B1C29
J2 Pin 5	B0C18	J2 Pin 13	B0C22	J2 Pin 21	B0C26	J2 Pin 29	B0C30
J2 Pin 6	B1C18	J2 Pin 14	B1C22	J2 Pin 22	B1C26	J2 Pin 30	B1C30
J2 Pin 7	B0C19	J2 Pin 15	B0C23	J2 Pin 23	B0C27	J2 Pin 31	B0C31
J2 Pin 8	B1C19	J2 Pin 16	B1C23	J2 Pin 24	B1C27	J2 Pin 32	B1C31

Row Pin Connections

The NI TB-2644 provides two ribbon cable headers for row connection. Use one cable header to connect to your application. Use the other cable header for column expansion.

The following table lists the pin assignments for row connection.

Pin Number	Row
1	B0R0
2	B1R0
3	B0R1
4	B1R1
5	B0R2
6	B1R2
7	B0R3
8	B1R3
9	B0R4
10	B1R4
11	B0R5
12	B1R5
13	B0R6
14	B1R6
15	B0R7
16	B1R7

Pinout

The following figure identifies the pins for the NI PXI-2532.

Caution  Low-voltage pins are reserved for future use. These pins should remain disconnected and isolated from row and column channels when high voltage is present.