Intelligent-Appliance IA-1007 is a TTL Controlled Relay Module, designed to provide a simple conversion of low power digital output into a dual pole 'Dry-Contact' output with a contact rating of 5Amp. The IA-1007 Discrete Relay Module includes 4 SPDT Relays, Led status indicators and voltage suppressors across their contacts to eliminate EMI/RFI noise while being switched. Control voltage operation range is +3 to 30VDC at a current of 1mA to 11mA.