The MRI-4045 Dual Relay Module is an intelligent addressable device designed to be used with a compatible fire alarm control unit, providing high rates of information exchange and fast and secure responses. The MRI-4045 Dual Relay Module controls 2-independent circuits while using only one module address. The module provides 2 form C (SPDT) contacts rated at 2A at 30VDC or 0.5A at 125VAC and the Fire panel can control each contact individually. Contacts are electrically isolated from the Fire alarm panel at all times. Refer to MRI-4046 if a supervised output is required. The contact position is verified by the module at all times. If a contact is not at the required position during standby or active conditions, a trouble will be reported by the panel. The module has a panel-controlled LED indicator. The LED flashes during normal operation and stays ON steadily when the device is in alarm condition. The address of each module is set using the MIX-4090 programmer tool. For setting the address on this device, disconnect it from the loop, or ensure that the loop to which is connected is both disconnected from the panel and shorted across the SCL+ and SLC- inputs at the device. Failing to take either of these steps may change the address programming of previously configured sensors on the loop. Main Features The MRI-4045 Dual Relay Module is designed to be used with compatible fire alarm control units Any combination of MRI-4000 series devices up to 240 can be connected on a single SLC Mounts in a standard 4" square or double gang electrical back box Indicating LED provides module status 2-Individually controllable contacts per module Each contact provides access to normally closed and normally open sides Contact position is verified by the module. Stuck or inoperative contacts are reported as a trouble Temperature range 32ºF to 120ºF (0ºC to 49ºC) Supports group activation capability for fast reaction time Provides 2-outputs using only 1-module address
