64-Channel Relay Switch Module for SCXI—The SCXI-1167 is an external relay driver. The SCXI-1167 is the ideal choice when the current and voltage requirements for relays exceed those found in existing relay modules or for relays embedded in a test system. The SCXI-1167 includes overcurrent, overvoltage, and flyback protection to ensure long-life operation. The SCXI-1167 can also drive small DC motors or other inductive relay coils.