Comnet 24 Channel Duplex Contact Closure Transceiver (Non-Latching Relays), SFP Interface

Supports multiple units with the same address providing one-to-many or many-to-one contact closure type scenarios Transmits up to twenty-four duplex independent dry switch or relay contacts over one SFP fiber port, or via a 4-wire RS-422 copper circuit Designed to meet full compliance with the environmental requirements of NEMA TS-1/TS-2 and the Caltrans Specification for Traffic Signal Control Equipment Indicating LEDs for monitoring contact closure status and summary fault Unique cascadable data bus design allows for easy system expansion of up to 12 uniquely addressed units