NC944
Mains supply | Requires a separate NC930 12V 250mA PSU. |
Quiescent current | 0mA (none). |
Max battery size and type | Optional NC941B battery back up kit available for use with the NC930 12V 250mA PSU. |
Alarm current | Determined by the number/type of field devices connected to the call controller/system. |
Open collector outputs | EMERG OUT (goes to 0V on any active Emergency call to drive external indicators such as overdoor lights/sounders). Max. sink current 20mA); 4 x AUX OUT (go +12V steady when the relevant zone is in Standard call or pulse at +12V for an Emergency call). |
Indicators | 4 x red Zonal Alarm LEDs (lit steady for a Standard call, pulse for an Emergency call); Internal buzzer (on steady for any Standard call, intermittent for any Emergency call). |
Controls | Disable Mute; Disable Reset. |
Call acknowledgement functionality | No. If required use an NC910 or NC920 10 or 20 Zone Call Controller instead. |
Product dimensions (mm) | 146 W x 87 H x 21 D mm. Mounts on a standard 25mm UK double gang back box. |
Construction & finish | Plastic. |
IP Rating | IP41. |
Weight | 128g. |
Operating conditions/temperature | -5ºC to +40ºC. Max. relative humidity 95% non-condensing. |
Notes | If a standard call and emergency call are both present on different zones and both of these zones have their respective AUX OUT enable links fitted, the AUX OUT terminal goes to +12V steady and will not pulse until the standard call is cancelled. |