Relay Connector

The sbRIO-9687 provides connections for four relay control outputs. Each output has a relay control DO+ and a current return pin, relay control DO-. The sbRIO-9683 and sbRIO-9684 have current sinking outputs, which means that the relay control DO+ is driven to relay control DO- when the channel is ON.

The following table provides pinout information for the relay connector.

Table 42. J4 Relay Connector Pinout
Pin Signal Pin Signal
1 +24 V 7 +24 V
2 DO0– 8 DO0+
3 DO1– 9 DO1+
4 DO2– 10 DO2+
5 DO3– 11 DO3+
6 GND 12 GND

The relay control lines are directly connected to the GPIC relay control connector. For further details regarding best practices for relay connections, refer to the NI 9683 User Manual and Specifications and the NI 9684 User Manual and Specifications.