CAST O-R-3-2.5-18 Base VAD c/w Voice Sounder

Order code: CA455A/W Category:
  • Provides ‘O-R-3-2.5-18’ rated light distribution.
  • Ideal for use in corridors (mount in a specific orientation for 2.5m width & 18m length rated coverage). See VAD Coverage section below for further details.
  • Superb sound intelligibility.
  • Onboard short-circuit loop isolator.
  • Four selectable volume levels
  • Six selectable messages with tones (2 evacuate, 1 alert, 1 all clear & 2 system test messages).
  • 26.5mA typical alarm current (470µA typical quiescent current) @ 27-40V DC (max volume & brightness).
  • Group addressing facility allows multiple devices to be operated simultaneously.
  • Optional BF330CTLIDW white or BF330CTLIDR red cap available for stand-alone use.
  • IP21C rated.
  • White ceiling fixing plate & detector spur wires included.
  • Custom messages and CAST Lockdown Sounder/VADs also available to special order.


More Information

‘CAST’ is the world’s most-advanced ‘distributed intelligence’ fire alarm system protocol. Conceived, designed and realised by C-TEC as part of a five-year, multi-million pound project, it involved the creation of a powerful proprietary communication protocol (C-TEC Addressable System Technology, CAST) and multiple control panels & field devices. Now available to purchase, its key features include:

• 255 devices per loop.
• Autonomous decision-making for faster response times.
• Multiple type codes.
• 40V loop drive voltage.
• Two ‘soft’ addressing options – automatic via the panel or manual via a powerful handheld programmer.
• Powerful multi-level addressing facilitates easy device addition and swapped device identification.
• Multiple functionality at a single address (integrated devices) – coming soon.
• Volumes, tones & detector modes can be changed at compatible panels.
• High-speed data transmission and robust data transfer.
• Intrinsically EN54-13 compliant.
• Provides geographical location of short and open circuit faults (a short circuit isolator is included as standard in every CAST field device).
• Replace device function.
• Future seamless integration with other CAST life safety systems reducing energy, servicing, installation and repair costs.
• Designed and manufactured in the UK.


EU Declaration of Conformity – CAST Base Voice Sounder VADs (DoC)


CAST Base Voice Sounder VAD Instructions – DFU4545000


VAD coverage (with multiplication factors applied)

VAD coverage depends on factors such as ambient light and viewing angle (direct or indirect). The table below summarises how the coverage of the CA455A/W increases or decreases based on these factors. To use the table, calculate the lux level of the area requiring coverage, determine whether the viewing angle will be direct or indirect then read off the coverage in the relevant column.

Lux level in area requiring coverage Ceiling Mounted Direct Viewing Ceiling Mounted Indirect Viewing
000-101 lux 8.4m H x 7.0m W x 50.4m L 3.9m H x 3.25m W x 23.4m L
101-200 lux 7.2m H x 6.0m W x 43.2m L 3.6m H x 3.0m W x 21.6m L
201-300 lux 5.7m H x 4.5m W x 34.2m L 3.0m H x 2.5m W x 18.0m L
301-400 lux 4.2m H x 3.5m W x 25.2m L 2.4m H x 2.0m W x 14.4m L
401-500 lux 3.3m H x 2.7m W x 19.8m L 1.8m H x 1.5m W x 10.8m L
501-600 lux 2.7m H x 2.2m W x 16.2m L 1.5m H x 1.2 W x 9.0m L
601-700 lux 2.1m H x 1.7m W x 12.6 L not applicable
701-800 lux 1.5m H x 1.2 W x 9m L not applicable
Voice Message Options

Messages – Pair One

Tone/Voice Message 1 (Primary)

Tone: Evacuate (550 Hz for 0.5 sec, 825 Hz for 0.5 sec);
Message: Attention please. Attention please. Fire has been reported in the building. Please leave immediately by the nearest exit. (repeated 2x)

Tone/Voice Message 2 (Secondary)

Tone: Alert (1 sec off, 825 Hz for 1 sec);
Message: This is a fire alert.This is a fire alert. Await further instructions. Await further instructions. (repeated 2x).

Messages – Pair Two

Tone/Voice Message 1 (Primary)

Tone: Evacuate (550 Hz for 0.5 sec, 825 Hz for 0.5;
Message: In the interests of safety please evacuate the building now. (repeated 3x).

Tone/Voice Message 2 (Secondary)

Tone: Alert (1 sec off, 825 Hz for 1 sec);
Message: All Clear. The emergency has been resolved. It is safe to resume normal activities. All Clear. (repeated 2x).

Messages – Pair Three

Tone/Voice Message 1 (Primary)

Tone: Evacuate (550 Hz for 0.5 sec, 825 Hz for 0.5 sec);
Message: This is a test of the fire alarm system. Please do not take any action. (repeated 2x).

Tone/Voice Message 2 (Secondary)

Tone: Alert (1 sec off, 825 Hz for 1 sec);
Message: The fire alarm test is now complete. (repeated 3x).