NI PXI-2575

NI Switches

NI PXI-2575

The NI PXI-2575 is a 196×1 multiplexer relay module for the PXI platform. The NI PXI-2575 is composed of 98 SPST and 1 SPDT armature latching relays.

For certain applications, you may need to increase the default settling time. Refer to Adding Additional Settling Time for more information.

Note Note  For EMC compliance, operate this device with shielded cables.

Operation Modes

The following table lists the supported topology of the NI PXI-2575 and possible operation modes.

TopologySoftware Name Immediate Scanning
1-Wire 196×1 Multiplexer 2575/1-Wire 196x1 Mux
(NISWITCH_TOPOLOGY_2575_1_WIRE_196X1_MUX)
2-Wire 98×1 Multiplexer 2575/2-Wire 98x1 Mux
(NISWITCH_TOPOLOGY_2575_2_WIRE_98X1_MUX)
2-Wire 95×1 Multiplexer 2575/2-Wire 95x1 Mux
(NISWITCH_TOPOLOGY_2575_2_WIRE_95X1_MUX)
Note  When using either the SH200LFH-4xDB50F-S or SH200LFH-BARE WIRE cable with the NI PXI-2575 in the 2-wire 98×1 topology, CH95, CH96, and CH97 will have lower RF performance than the other 95 channels because they are not in twisted pairs in the cable. To avoid using these channels, NI-SWITCH has support for a 2-wire 95×1 topology that does not include CH95, CH96, and CH97.