NI PXI-2530 2-Wire 4x16 Matrix Topology
The following figure and table identify the pins for the NI PXI-2530 in the 2-wire 4x16 matrix topology.

| Software Name | Polarity | Hardware Name | |
|---|---|---|---|
| NI PXI-2530 Connector Pin Number |
NI TB-2631 Terminal Name |
||
| r0 | + | 141 | ROW 0 |
| – | 97 | ROW 1 | |
| r1 | + | 114 | ROW 2 |
| – | 159 | ROW 3 | |
| r2 | + | 9 | ROW 4 |
| – | 53 | ROW 5 | |
| r3 | + | 70 | ROW 6 |
| – | 27 | ROW 7 | |
| c0 | + | 1, 62, 106, 133 | COLUMN 0 |
| – | 45, 19, 151, 89 | COLUMN 16 | |
| c1 | + | 2, 63, 107, 134 | COLUMN 1 |
| – | 46, 20, 152, 90 | COLUMN 17 | |
| c2 | + | 3, 64, 108, 135 | COLUMN 2 |
| – | 47, 21, 153, 91 | COLUMN 18 | |
| c3 | + | 4, 65, 109, 136 | COLUMN 3 |
| – | 48, 22,154, 92 | COLUMN 19 | |
| c4 | + | 5, 66, 110, 137 | COLUMN 4 |
| – | 49, 23, 155, 93 | COLUMN 20 | |
| c5 | + | 6, 67, 111, 138 | COLUMN 5 |
| – | 50, 24, 156, 94 | COLUMN 21 | |
| c6 | + | 7, 68, 112, 139 | COLUMN 6 |
| – | 51, 25, 157, 95 | COLUMN 22 | |
| c7 | + | 8, 69, 113, 140 | COLUMN 7 |
| – | 52, 26, 158, 96 | COLUMN 23 | |
| c8 | + | 10, 71, 115, 142 | COLUMN 8 |
| – | 54, 28, 160, 98 | COLUMN 24 | |
| c9 | + | 11, 72, 116, 143 | COLUMN 9 |
| – | 55, 29, 161, 99 | COLUMN 25 | |
| c10 | + | 12, 73, 117, 144 | COLUMN 10 |
| – | 56, 30, 162, 100 | COLUMN 26 | |
| c11 | + | 13, 74, 118, 145 | COLUMN 11 |
| – | 57, 31, 163, 101 | COLUMN 27 | |
| c12 | + | 14, 75, 119, 146 | COLUMN 12 |
| – | 58, 32, 164, 102 | COLUMN 28 | |
| c13 | + | 15, 76, 120, 147 | COLUMN 13 |
| – | 59, 33, 165, 103 | COLUMN 29 | |
| c14 | + | 16, 77, 121, 148 | COLUMN 14 |
| – | 60, 34, 166, 104 | COLUMN 30 | |
| c15 | + | 17, 78, 122, 149 | COLUMN 15 |
| – | 61, 35, 167, 105 | COLUMN 31 | |