BOSCH D7053

The D7053 MUX input/output module (12V) is a general purpose device that monitors a normally-open (NO), supervised contact device. It provides a separately controlled Form C relay output. The module connects to the multiplex bus of an FPD-7024, D7024 or DS9400M FACP. It configures as either Class A or Class B and addresses using rotary switches. All operating power for the module is drawn from the control panel's multiplex bus. An on-board status LED indicates normal, alarm, and trouble conditions.