Siemens Operating Interface Unit - Model FCM2018-U3 Functions as the operator interface and central microprocessor for the Cerberus PRO fire alarm control panels (FC922 and FC924), the Cerberus PRO Intelligent...
Siemens Remote Test Switch - Model FDBZ492-RTL, (S54319-S27-A1)
Remote Test Lamp and Key Switch for Manual Testing of FDBZ492-R, FDBZ492-HR, FDBZ492-RP Duct Detectors