National Instruments NI SCXI-1160 16-channel SPDT Relay Switch Module

National Instruments NI PXI-2566 16 SPDT Relay Module Card

NI National Instruments SCXI-1160 16-channel SPDT Relay Switch Module

National Instruments NI SCXI-1166 32-SPDT Relay Switch Module - READ

National Instruments NI PXI-2566 Relay Switch Card, 16ch SPDT

NI National Instruments SCXI-1160 Rev 1.3 16-channel SPDT Module 182139F-01

National Instruments Digital SPDT Relay Module SCC-RLY01