Bosch FLM-325-CZM4 Conventional Zone Module

The Bosch FLM-325-CZM4 Conventional Zone Module is an addressable interface module that bridges conventional fire detection devices with the Bosch FPA-1000 Analog Addressable Fire Alarm Control Panel. Each module supports connection of up to 25 conventional two-wire smoke detectors or manual call points per zone, depending on device type, making it an ideal solution for hybrid or phased system upgrades where existing conventional devices need to be retained within a new addressable infrastructure. The module supervises both the auxiliary power supply and the entire conventional detector zone for faults, ensuring continuous system integrity. It is programmed with a unique address between 1 and 127 using the D5070 Analog Device Programmer and supports both Class A (Style D) and Class B (Style B) wiring configurations. Fully compatible with the Bosch FPA-1000 LSN loop and suitable for BFP-compliant FDAS installations in commercial and industrial buildings.