C-Tec 20 Zone Expansion Unit for NC910S or NC920S
- Expands the number of zones on an NC910S or NC920S Call Controller by 10 or 20 zones (dependent on model purchased).
- Housed in an attractive surface mounting plastic enclosure measuring just 214mm x 178mm.
- Includes 10 or 20 Zonal Alarm LEDs capable of indicating Standard and Emergency Calls. Note this expansion controller does not include on onboard buzzer as audible call indication will come from the master controller it is connected to.
- NC910ES provides 10 extra zones, NC920ES provides 20 extra zones.
- Innovative slide-in labelling system.