The FX-IDC1B connects a normally open, alarm, supervisory or monitor type dry contact initiating device circuit (IDC) to the Kidde control panel. This module is for class B circuit operation. The device address is set using the two rotary switches located on the front of the module. One device address is required. The module is configured to operate as an alarm latching device type from the factory. When the NO contact of an initiating device is closed, an alarm signal is sent to the control panel and the alarm condition is latched at the module.