Dry Contact Station (DSD-1)

Dry Contact Station（DSD-1）

Dry Contact Station（DSD-1） The Trolmaster DSD-1 Dry-contact module provides a simple and flexible solution to who want to connect & control devices to the Hydro-X using a “dry-contact” or relay to activate the device. Some equipment requires either normally open or normally closed contact closure in order to activate the equipment.