System Sensor’s Two In/Two Out Multi-Function Module

May 23, 2012
Module speeds installation, reduces device count

St. Charles, IL – The new System Sensor Two In/Two Out multi-function module combines two relay outputs and two monitor inputs into one device. The module is capable of Class B supervised wiring to the monitored devices. It also contains Form C relay contacts allowing the panel to switch the contacts on command. There is a dedicated LED on the module for each input and output. The control panel can use these bi-color LEDS to indicate normal, alarm and trouble conditions.

This module is ideal for areas where inputs and outputs are needed in the same location. This could be smoke/fire dampers, HVAC fan, non-dedicated smoke fan, dedicated smoke control, or even security doors. The savings of using one device compared to four can be beneficial in any type of building, but adds up quickly in high-rise buildings or large shopping complexes.

The two input/two output module is the same size as standard single modules. It can mount directly to a 4-inch square electrical box, the surface mounted SMB500, or into a DNR(W) duct housing.

The base address is selected via rotary switch and assigned to relay output #1 from 00 to 156. The module will automatically assign the next three addresses as appropriate to monitored input #1, relay output #2, and monitored input #2. If relay output #2 or monitored input #2 are not used, it is possible to disable those addresses via DIP switch. Those two addresses will then be free to be used for other devices on the loop.

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