The DAM-2 module offers unique features generally not available in competing controller designs. Its ten universal digital inputs are capable of accepting a broad range of AC and DC signals with no reconfiguration or rewiring required. Its eight digital outputs can be individually configured (in software) for AC or DC operation. The digital outputs offer a unique hybrid design consisting of Form C mechanical relays with contacts shunted by solid-state transistors. This topology offers several advantages over pure solid-state or mechanical contacts:

• In AC mode, hybrid contacts offer dramatically improved endurance as they see virtually no switching arc
• AC hybrid outputs drastically reduce conducted and radiated EMI produced when switching inductive loads by maintaining zero voltage crossing turn-on and zero current crossing turn-off
• AC hybrid outputs offer very low contact resistance (when compared to pure solid state outputs) resulting in small power dissipation across contacts
• In DC mode, mechanical contact life is enhanced thru the use of on-board surge suppression circuitry

The DAM-2 module is available in two wiring configurations for the digital outputs: isolated and banked. In the isolated wiring hub configuration, every relay output has a unique common, normally open, and normally closed terminal connection point. The banked wiring hub configuration provides two power termination groups and arranges the digital outputs into two banks of four relays—the relays in each bank have their common terminal tied together (but each relay maintains unique terminal points for the NO and NC contacts). While the isolated wiring hub configuration provides the most power sourcing flexibility, the banked wiring hub is advantageous in applications that have common power sources by eliminating the need to splice wires. When ordering, use DAM-2ISO for the isolated wiring hub configuration and DAM-2BK for the banked wiring hub configuration.