NI PXI-2549

The NI PXI-2549 is a 2-channel, general-purpose switch module for the PXI bus that can carry 50 Ω RF signals up to 2.7 GHz. The NI PXI-2549 is composed of two terminated SPDT relays.

Operation Modes

The following table lists the supported topology of the NI PXI-2549 and possible operation modes.

Topology	Software Name	Immediate	Scanning
Terminated 2-SPDT	2549/Terminated 2-SPDT (NISWITCH_TOPOLOGY_2549_TERMINATED_2_SPDT)