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50 Event 24 Hour 7 Day Timer With Evac Tone Generator

SKU : A4500

RRP: $795.00
Our Price: $690.00
Less: $105.00


  • Description
  • Reviews
The A 4500 is a weekly timer and Evacuation controller all housed in a convenient 1RU rack mount chassis. A total of 50 ?vent?switching times are available through the timing functions. Each event can be set to turn on any single day of the week or on multiple days, from 1 sec up to 24 hours. When a timing event is activated, an MP3 audio file will be played and output through the dual RCA line level output. There are three MP3 playback options for the timing events, which include the Bell, Prebell and a Music option. An SD card which is supplied, houses all the MP3 files to be played as well as storing all the timing events (Note: The audio files must be in MP3 format). The timing events can be programmed via the unit? front buttons which is a bit cumbersome, or they can be programmed with the supplied PC software (also available as a download).

The timing events can also be programmed to only trigger the Bell 24V out (and in turn the common 24V Out), with no audio output. This is activated by setting the output to the ?elay?option in the programming setup.

The Evacuation controller is designed around industry standard building emergency alert/evacuate requirements. When connected to a paging system amplifier, building occupantcupans can be alerted and/or evacuated in the event of an emergency e.g. fire, gas leak, bomb scare, earthquake. Alert & Evac switches on the front of the unit are fitted with safety covers to prevent accidental operation.
The Alert, Evacuation and Bell tones and the cancel function are triggered by the front switches, or by the rear terminal contacts for remote activation. Switched 24V DC Out connections are provided for Bell, Alert, Evac or a Common out. These contacts are for connection of override relays in remote volume controls, warning strobes, bells etc.

The alert and evacuation tones are stored on the SD card (Emergency Tones which conform to AS1670.4 are supplied) to allow the user to provide any tones they require (Note: The audio files must be in MP3 format).

The Evacuation mode has a voice over option for the playback of an evacuation message every third cycle of the evac tone. The voice over message is also stored on the SD card and is DIP switch enabled.


  • MP3 audio format for Bell, Prebell and Music timing outputs
  • MP3 audio format Emergency Tones conform to AS 1670.4 (supplied)
  • Random playback of MP3 files for Pre-bell and music triggers
  • Easy PC based timing event setup
  • Local push button operation of Alert, Evac and Bell
  • Remote triggering of Alert, Evac and Bell
  • MP3 audio format Voice over message (In Evacuation cycle)
  • Switched 24VDC output for Bell, Alert or Evac mode
  • Pluggable screw terminal connections
  • Auxiliary level output
  • Battery backup of current time
  • 24V DC operation
  • Standard 1U 19?rack mount case
  • Suitable for any amplifier with an auxiliary input
  • 10 Year Warranty
  • Australian Designed and Manufactured

Programming the Timing Events
The timing events can be programmed via the unit? front buttons which is a bit cumbersome, or they can be programmed with the supplied PC software (Screen shots shown below).

Programming the A 4500 with the software is very simple.
Open the program by double clicking the ?edback A 4500 Timer Programmer.exe?file. The program will appear as shown below.

If the program doesnt run then the .NET Framework might need to be updated on your PC. This must be updated to the .NET Framework 4, available on the microsoft website.

Double click on any line to bring up the Event Details window as shown below.
At this stage the Event description, start time, finish time, output and days of the week can be selected. The output can be set to Bell, Prebell or Music output which are all MP3 audio outputs. The other output option is the relay only option, which triggers the Bell 24V DC output relay (with no audio output).

Press OK to save this event which will now appear in the event listing as shown below.

Double click on another line to bring up the Event Details window again and then enter the next event.

Press OK to save this event which will now appear in the event listing as shown below.

Once complete the events are saved as a configuration file which is stored on the supplied SD card. The SD card is inserted into the A 4500 and the timer is now up and running. If any changes are required simply remove the SD card, connect to a PC and add or remove events.

100% developed, designed & assembled in Australia.
Since 1976 Redback PA products have been manufactured in Perth, Western Australia by Altronics. With over 35 years experience in the commercial audio industry, we offer consultants, installers and end users reliable products of high build quality with local product support. Read more about our Australian Made products

Backed by an industry leading 10 Year Manufacturer Warranty.
Our Redback products have a long tried and tested history of bulletproof reliability. Altronics offers a 10 Year Warranty on all Australian Made Redback products. Our local in-house service department has all the know how to answer technical queries and provide timely service. Read more about our industry leading warranty.

  • Model: A4500
  • Brand: Redback

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