Conventional Call Systems

NC951 Emergency Assistance / Disabled Persons Toilet Alarm (C-TEC)

800 Series

Incorporating a wide range of indicator panels including the new NC920 call controller (left) and an array of ceiling pulls, wall-mounting call points, overdoor lights and remote sounders, our 800 Series Call System is ideal for use in all types of private, commercial, residential and public sector building.

Housed in a durable plastic enclosure measuring just 210mm wide and 175mm high, the new NC920 10-20 Zone Controller brings some exciting new features to the range including:-

  • Attractive compact design - blends perfectly into any sort of decor
  • Flush and surface versions available
  • Range includes two master controllers (10 and 20 zones) and two expander units (10 and 20 zones) allowing systems of 10, 20, 30 or 40 zones to be easily implemented
  • Two call levels - standard (constant tone) and emergency (intermittent tone)
  • 'Call Accept' function allows staff to send an acknowledgment signal of 0.5 seconds on and 3 seconds off to calling zones to confirm help is coming
  • Optional call mute and call reset buttons
  • Includes an onboard 12V 300mA PSU and two volt-free relay contacts which activate when a standard or emergency call is made
  • Slide-in labelling system allows easy customisation
  • Additional master controllers & expansion units can be used as repeaters on larger sites
  • Compatible with C-TEC's entire range of 800 Series
    call system components
  • Should a standby battery supply be required, optional boxed PSUs are available with space for a 12V VRLA battery
  • Completely backwards compatible

800 Series Call System Wiring Overview

NC951 wiring

How does an 800 Series Call System work?

In its simplest form, the system:-

  • Allows the general public, a member of staff or a patient to call for assistance;
  • Confirms that the call has got through;
  • Makes sure the caller is visited; and, if required;
  • Allows extra or more urgent assistance to be summoned using an optional 'emergency' call facility.

However, the unrivalled flexibility and versatility of the system means it can also be used to:-

  • Inform staff that someone is being attacked via an optional infrared 'staff attack' facility.
  • Monitor storage cupboards, cash offices and stock rooms for unauthorised access.
  • Monitor doorbells, telephones and machinery for activation or failure.
  • Send notification of calls to hand-held paging equipment.


System Design Service

Sales & technical support

Free in-house training courses

Free point-of-sale display material

Competitive pricing structure

Next day & timed deliveries

Langley Mills, Roberttown Lane, Roberttown, Liversedge, West Yorkshire WF15 7LF

Please direct all sales enquiries to 01924 406449

or email us at

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