United Electronic Industries’ DNA/DNR-DIO-470 10-channel, high-current electromechanical relay boards can be used with the firm’s “Cube” and RACKtangle I/O series, respectively. The boards are designed for a variety of high-current switching and digital control applications. Each channel is configured as a standard Form C relay, switches voltages up to 140 V dc or 150 V ac, and is rated for continuous operation at 4 A @ 30 V dc and 5 A at 125 V ac. All relays default to “NC” on power up/reset. Switching rates up to 125 Hz are supported.