NI PXI/PXIe-2532/2532B 1-Wire Quad 4×32 Matrix Topology

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Edition Date: April 2015

Part Number: 375472H-01

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The NI TB-2646B terminal block creates a 1-wire quad 4×32 matrix topology with the NI PXI/PXIe-2532B (NI 2532B).The following figure represents the NI 2532/2532B in the 1-wire quad 4×32 matrix topology.

Making a Connection

Both the scanning command, b0r2->b0c1;, and the immediate operation, niSwitch Connect Channels VI or the niSwitch_Connect function with parameters b0r2 and b0c1, results in the following connection:

signal connected to B0R2 is routed to B0C1.

Note 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-2646B terminal block connects banks of the NI 2532B to create the 1-wire quad 4×32 matrix topology. The following figure illustrates how the sixteen native banks of the NI 2532B connect using the NI TB-2646B to create the 1-wire quad 4×32 matrix topology.

Bank Connection Diagram

The following tables list the pin assignments for the NI TB-2646B column ribbon cable headers.

Column Pin Connections

The following table refers to the J13 connector on the NI TB-2646B.

Pin Number Column Pin Number Column Pin Number Column Pin Number Column
Pin 1 B3C31 Pin 9 B3C27 Pin 17 B3C23 Pin 25 B3C19
Pin 2 B1C31 Pin 10 B1C27 Pin 18 B1C23 Pin 26 B1C19
Pin 3 B3C30 Pin 11 B3C26 Pin 19 B3C22 Pin 27 B3C18
Pin 4 B1C30 Pin 12 B1C26 Pin 20 B1C22 Pin 28 B1C18
Pin 5 B3C29 Pin 13 B3C25 Pin 21 B3C21 Pin 29 B3C17
Pin 6 B1C29 Pin 14 B1C25 Pin 22 B1C21 Pin 30 B1C17
Pin 7 B3C28 Pin 15 B3C24 Pin 23 B3C20 Pin 31 B3C16
Pin 8 B1C28 Pin 16 B1C24 Pin 24 B1C20 Pin 32 B1C16


The following table refers to the J12 connector on the NI TB-2646B.

Pin Number Column Pin Number Column Pin Number Column Pin Number Column
Pin 1 B3C15 Pin 9 B3C11 Pin 17 B3C7 Pin 25 B3C3
Pin 2 B1C15 Pin 10 B1C11 Pin 18 B1C7 Pin 26 B1C3
Pin 3 B3C14 Pin 11 B3C10 Pin 19 B3C6 Pin 27 B3C2
Pin 4 B1C14 Pin 12 B1C10 Pin 20 B1C6 Pin 28 B1C2
Pin 5 B3C13 Pin 13 B3C9 Pin 21 B3C5 Pin 29 B3C1
Pin 6 B1C13 Pin 14 B1C9 Pin 22 B1C5 Pin 30 B1C1
Pin 7 B3C12 Pin 15 B3C8 Pin 23 B3C4 Pin 31 B3C0
Pin 8 B1C12 Pin 16 B1C8 Pin 24 B1C4 Pin 32 B1C0

The following table refers to the J3 connector on the NI TB-2646B.

Pin Number Column Pin Number Column Pin Number Column Pin Number Column
Pin 1 B0C0 Pin 9 B0C4 Pin 17 B0C8 Pin 25 B0C12
Pin 2 B2C0 Pin 10 B2C4 Pin 18 B2C8 Pin 26 B2C12
Pin 3 B0C1 Pin 11 B0C5 Pin 19 B0C9 Pin 27 B0C13
Pin 4 B2C1 Pin 12 B2C5 Pin 20 B2C9 Pin 28 B2C13
Pin 5 B0C2 Pin 13 B0C6 Pin 21 B0C10 Pin 29 B0C14
Pin 6 B2C2 Pin 14 B2C6 Pin 22 B2C10 Pin 30 B2C14
Pin 7 B0C3 Pin 15 B0C7 Pin 23 B0C11 Pin 31 B0C15
Pin 8 B2C3 Pin 16 B2C7 Pin 24 B2C11 Pin 32 B2C15


The following table refers to the J2 connector on the NI TB-2646B.

Pin Number Column Pin Number Column Pin Number Column Pin Number Column
Pin 1 B0C16 Pin 9 B0C20 Pin 17 B0C24 Pin 25 B0C28
Pin 2 B2C16 Pin 10 B2C20 Pin 18 B2C24 Pin 26 B2C28
Pin 3 B0C17 Pin 11 B0C21 Pin 19 B0C25 Pin 27 B0C29
Pin 4 B2C17 Pin 12 B2C21 Pin 20 B2C25 Pin 28 B2C29
Pin 5 B0C18 Pin 13 B0C22 Pin 21 B0C26 Pin 29 B0C30
Pin 6 B2C18 Pin 14 B2C22 Pin 22 B2C26 Pin 30 B2C30
Pin 7 B0C19 Pin 15 B0C23 Pin 23 B0C27 Pin 31 B0C31
Pin 8 B2C19 Pin 16 B2C23 Pin 24 B2C27 Pin 32 B2C31

Row Pin Connections

The NI TB-2646B 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 tables list the pin assignments for the row connections.

The following table refers to the J9 connector on the NI TB-2646B.

Pin Number Row
1 B1R0
2 B3R0
3 B1R1
4 B3R1
5 B1R2
6 B3R2
7 B1R3
8 B3R3
9 B0R0
10 B2R0
11 B0R1
12 B2R1
13 B0R2
14 B2R2
15 B0R3
16 B2R3

The following table refers to the J4 connector on the NI TB-2646B.

Pin Number Row
1 B0R0
2 B2R0
3 B0R1
4 B2R1
5 B0R2
6 B2R2
7 B0R3
8 B2R3
9 B1R0
10 B3R0
11 B1R1
12 B3R1
13 B1R2
14 B3R2
15 B1R3
16 B3R3

Row Protection Bypass Header

Each row signal is isolated from the reed relays through a 100 Ω resistor. To bypass this resistor, install a jumper on the appropriate pins of the header indicated in the table below. The following table lists the appropriate jumper position for bypassing the resistor on each row signal.

Bypassed Row NI TB-2646B
Header Pins Connected
B0R0 J14 1-2
B2R0 J14 3-4
B0R1 J14 5-6
B2R1 J14 7-8
B0R2 J14 9-10
B2R2 J14 11-12
B0R3 J14 13-14
B2R3 J14 15-16
B1R0 J15 1-2
B3R0 J15 3-4
B1R1 J15 5-6
B3R1 J15 7-8
B1R2 J15 9-10
B3R2 J15 11-12
B1R3 J15 13-14
B3R3 J15 15-16

Pinout

The following figure identifies the pins for the NI 2532B.

Caution  Do not connect to RESERVED pins.

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