NC941 Single Zone Call Controller c/w 250mA PSU

Single Zone Call Controller c/w 12V 250mA PSU

Order code: NC941 Category:
  • A single zone call controller c/w a 12V 250mA PSU and link-selectable Mute/Reset button.
  • Fully compatible with C-TEC’s entire range of 800 Series Call System components.
  • Capable of indicating standard (constant tone) and emergency (intermittent tone) calls.
  • Power On and Alarm ‘CALLING’ LEDs.
  • Open collector output goes to 12V when the controller’s onboard buzzer sounds.
  • Mounts on a standard UK 25mm double gang flush or surface back box.
  • Optional NC941B 0.3A battery battery backup kit also available.

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Technical Specifications
Mains supply

Internal power supply

Total output current limited to

Quiescent current

Max battery size and type

Alarm current

Auxiliary relays

Open collector outputs

Indicators

Controls

Connections

Expansion connections

Call acknowledgement functionality

Product dimensions (mm)

Construction & finish

IP Rating

Weight

Operating conditions/temperature

Documentation

NC941 Call Controller Instructions – DNU0941000

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EU Declaration of Conformity – 800 Series 1-4 Zone Call Controllers (DoC)

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Dimensions & Mounting Information
Product Dimensions:147 W x 87 H x 34 D mm. Mounts on a 25mm UK double gang back box.
BIM/CAD Drawings

NC941 Flush mounted BIM (RFA)

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NC941 Surface mounted BIM (RFA)

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Operation (as part of an NC951 system)

OVERVIEW

The NC941 Single Zone Call Controller is compatible with all 800 Series call points, ceiling pulls, infrared ceiling receivers, monitoring points, overdoor lights and remote sounders. Depending on how the Controller is configured and the devices connected to it, Standard and Emergency calls can be indicated via its buzzer and zonal LED. A button is also provided allowing the user to Reset or Mute standard calls depending on how it is confifued, as detailed below.

OPERATION

STANDARD CALLS: when triggered by a calling device, the Controller’s internal buzzer sounds continuously and its zone indicator illuminates steady.

If enabled for Reset operation, pressing the Controller’s button cancels all standard calls.

If enabled for Mute operation, pressing the Controller’s button silences the Controller’s internal buzzer. However, if a new call (standard or emergency) is triggered anywhere on the system, the buzzer will resound.

EMERGENCY CALLS: when triggered by a calling device, the Controller’s internal buzzer pulses and the relevant zone indicator(s) flash. This level of call takes priority over standard calls and cannot be muted or reset at the Controller. An emergency call can only be reset at the device from which it was triggered or via a reset point, wired on the same zone.

Important: A link inside the NC941 Call Controller allows its button to be configured so instead of Resetting or Muting a standard call, it has no effect. The NC941 is not recommended for use in Accessible Toilet Alarm installations as it does not have a Call Accept function. For such installations we recommend you use our NC951 Accessible Toilet Kit, NC943B Call Controller or NC910/20 range of 10-20 zone indicator panels.

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