Siemens SCM-8 (500-033040) — eight-switch control module for the command console of a Cerberus PRO Modular or Desigo Fire Safety Modular panel.
It is an operator interface, not a field device. Eight momentary push-buttons give manual control of emergency voice evacuation and of functions like All Call, All Evac and speaker circuits, grouped as required. Each switch has a label and two LEDs, one dual-colour for the signal type, one amber for a fault.
- Eight programmable momentary switches, 16 LEDs, two per switch
- Programmed with Zeus-C; address set by two rear rotary switches
- Each module is a CAN bus node, and the bus needs a 120 Ω resistor at each end
- Remote-mountable up to 1,000 feet in a REMBOX2 or REMBOX4
- One electrical block covers FCM-6, LCM-8 and SCM-8: 14 mA max plus 1 mA per lit LED
- UL 864, CAN/ULC-S576, FM, CSFM and NYCFD; 32 to 120 °F indoor dry
It is a module, not an assembly: it mounts on the ID-MP inner door plate, 500-633027, a separate part taking four modules, and the ordering table marks the CCL CAN cable required. LCM-8 is LED annunciation only; FCM-6 has fan switches.
