AV 60
AUDIO
VERIFICATION
UNIT
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LT268 Issue 1.0
CONTENTS
|
Page |
INTRODUCTION |
3 |
SYSTEM OVERVIEW |
4 |
CONNECTION DETAILS |
5 |
SYSTEM FEATURES EXPLAINED |
6 |
PROGRAMMING |
8 |
MICROPHONE UNIT |
10 |
CONTROL TONES |
11 |
SYSTEM REQUIREMENTS |
12 |
STATUTORY REQUIREMENTS |
12 |
CONNECTION REQUIREMENTS |
13 |
INSTALLATION REQUIREMENTS |
14 |
APPLICATION NOTES |
15 |
2
Introduction
The Audio Verification Unit (PR107) is designed to enhance security alarm systems by adding audio verification without changing the existing control panel.
It has been designed to be used with either standard digital communicators ,Red care, Modems or as a standalone device.
Features
Eight microphone inputs each capable of using 4 microphones.
Audio expander (sold separately) providing up to 128 microphone capability Audio storage circuit capable of storing up to 30 seconds of audio.
Output to provide visual indication of "microphones active" Relay contacts (rated at 1 Amp 12V DC)
Two switched outputs (controlled from C/S) Full duplex two way talk
Broadcast Facility Part set Facility
Site announcement message Function acknowledgement messages Site access pass code
Full on site programming and test.
B.T Star (network) services to remove bar on incoming calls.
Remote facilities (from monitoring station)
Each microphone input can be individually switched on or off when "live". Auto switch through each input for 2 seconds.
Switch between live and recorded audio. Extend “on line” time (normally 2 minutes). Shutdown audio
Pulse relay for approx. two seconds. Switch relay on/off..
Enter pass code to access audio from site. Talk back to site live.
Broadcast a live message to site.
Playback site message (description of site in use). Pulse output 1 or 2 for approx. two seconds. Switch output 1 or 2 on or off..
Programmable options
Select recording only after alarm activated. Select recording only after alarm system is set Select negative or positive control input. Enable or disable B.T Star services.
Select recorded or live audio first when dialling back into site.
Select relay auto switch when connected to central station or controlled by C/S Record site announcement message
Enable / disable and enter pass code
Enable / disable communication successful for Digicomm
3
SYSTEM OVERVIEW
Before the operation of the unit is described, it is essential to understand three fundamental features.
Audio Verification.
Audio verification is achieved by connecting microphones, fitted throughout a protected premises, to the AV Unit.
The AV Unit is connected to an existing alarm system which provides it with information on the alarm status ( set, alarm, communication successful)
When an alarm is triggered the alarm signal is sent to a central monitoring station via
the Digital Communicator, Red care or Modem (existing equipment as part of the alarm system)
Once the monitoring station has received and acknowledged the alarm signal they will then dial back in to the site using a standard telephone and the AV Unit will then provide a "Listen in" facility.
The AV unit will NOT provide Alarm Detection or Alarm Signalling
The Central station will have a series of facilities to help them identify if the alarm is false or if the site requires policing.
Each central station will have there own particular procedures for dealing with audio verification and you should consult your central station for details.
The AV unit has the ability to comply with every existing procedure, you will have to program the unit in specific ways to comply with the requirements of some central stations (see application notes)
4
Connection Details
Control Inputs
SET |
The SET terminal is used to start the recording cycle, when input is activated the |
|
recording starts ( Option Switch 2 must be “ON”) |
AL |
The Alarm trigger is used to activate the system. |
C/S |
The Communication Successful input is used for confirmation that the alarm |
|
signalling equipment has communicated its’ alarm signals successfully. |
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(A C/S output is available from most “Digicoms” ) |
Note : The AV60 will only answer an incoming call when the AL input is active.
Microphone Inputs
There are eight Audio Input channels, each provides a fused +12V and 0V supply to the Microphone Units (PR086) and receives the audio input from these units.
SW Live The switched live outputs are active if the unit is recording or during live audio.
Relay “Clean” changeover relay contacts rated 1A at 12V).
Outputs Two open collector outputs O/P1 and O/P2 rated at 100 mA (+12v switched to 0v)
Part Set There are four part set inputs, each input controls two audio channels.
Broadcast/Talkback For interface to the AV60 Broadcast or Talkback units (available separately)
LINE For connection to the PSTN
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