NI SCXI-1129
The NI SCXI-1129 is a 256 crosspoint, high-density matrix module for the SCXI platform designed for switching low and high voltages. For low-voltage measurements, the NI SCXI-1129 uses relays with <9 µV thermal offset to ensure accurate measurements. The SCXI-1129 supports routing signals to the high-voltage analog bus.
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Note For EMC compliance, operate this device with shielded cables. |
Operation Modes
The following table lists the supported topology of the NI SCXI-1129 and possible operation modes.
| Topology | Software Name | Immediate | Scanning |
|---|---|---|---|
| Quad 4×16 Matrix | 1129/2-Wire Quad 4x16 Matrix (NISWITCH_TOPOLOGY_1129_2_WIRE_QUAD_4X16_MATRIX) |  | |
| 2-Wire 4×64 Matrix | 1129/2-Wire 4x64 Matrix (NISWITCH_TOPOLOGY_1129_2_WIRE_4X64_MATRIX) | | |
| 2-Wire 8×32 Matrix | 1129/2-Wire 8x32 Matrix (NISWITCH_TOPOLOGY_1129_2_WIRE_8X32_MATRIX) | | |
| 2-Wire 16×16 Matrix | 1129/2-Wire 16x16 Matrix (NISWITCH_TOPOLOGY_1129_2_WIRE_16X16_MATRIX) | | |
| Dual 4×32 Matrix | 1129/2-Wire Dual 4x32 Matrix (NISWITCH_TOPOLOGY_1129_2_WIRE_DUAL_4X32_MATRIX) | | |
| 2-Wire Dual 8×16 Matrix | 1129/2-Wire Dual 8x16 Matrix (NISWITCH_TOPOLOGY_1129_2_WIRE_DUAL_8X16_MATRIX) | | |