AV 60 AUDIO VERIFICATION UNIT Downloaded from - http://www.guardianalarms.net LT268 Issue 1.0 CONTENTS Page INTRODUCTION SYSTEM OVERVIEW CONNECTION DETAILS SYSTEM FEATURES EXPLAINED PROGRAMMING MICROPHONE UNIT CONTROL TONES SYSTEM REQUIREMENTS STATUTORY REQUIREMENTS CONNECTION REQUIREMENTS INSTALLATION REQUIREMENTS APPLICATION NOTES 3 4 5 6 8 10 11 12 12 13 14 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") The Alarm trigger is used to activate the system. The Communication Successful input is used for confirmation that the alarm signalling equipment has communicated its' alarm signals successfully. (A C/S output is available from most "Digicoms" ) AL C/S 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 5 System Features Explained Audio Recording. The A.V Unit can Record 30 seconds of audio received from all microphone inputs. When an alarm is triggered the A.V unit will store half the time programmed before the alarm and half the time programmed after the alarm, IE 15 seconds pre and 15 seconds post alarm. (this facility will only function if the AV unit is programmed to record after the system is set. The recorded audio can be replayed by the central station during alarm condition. There are two modes of operation for recorded audio. 1: 2: The unit can be configured to start recording when the system is set. The unit can be configured to start recording when in alarm condition. Audio Switching. There are eight microphone inputs on the AV Unit. When the monitoring station is "listening in" these inputs can be individually switched ON or OFF to allow background noise to be eliminated. B.T Star Services. The unit has the capability to use the star services to add or remove a bar on incoming calls this is used when the line is shared with a digital communicator or modem. Relay The relay can be either controlled from the Central station or it can be programmed to switch when the AV unit receives an incoming call, this can be used to silence local sounders. There are Four modes of operation. 1: Auto switch relay after answering a call (auto switch back after shut down) 2: Pulse for approx. two seconds (central station control) 3: Switch ON ( Central station control). 4: Switch OFF (Central station control) Switched outputs The switched O/P's operate in the same way as the relay (except auto switching). 1: Pulse for approx. two seconds (central station control) 2: Switch ON ( Central station control). 3: Switch OFF (Central station control) Talkback With the AV60 Two way talk is possible (talkback). To use this facility refer to the instructions provided with the AV60 Talk back unit. 6 Broadcast An output is provided to allow the central station to directly talk to the site through loud speakers (AV60 Broadcast speaker system). Part Set The 4 part set inputs are used to enable 4 pairs of microphone inputs, The polarity and control of these inputs is programmed by SW1 switch 1 (see page 8) This facility can be used to provide a system with area setting facilities or, if used in a domestic system, a night set facility. Site Announcement The AV unit has the facility to record on site an announcement which is then replayed when the central station dial in to the site. This acts as a conformation that they are listening to the correct site. The announcement can be up to 10 seconds long. Function Announcement The A.V unit has pre-recorded function announcements, these provide verbal conformation to the central station operators that the function they have selected is now in operation. I.E. when the central station selects replay recorded audio, the message "STORED" will be played before the actual recorded audio is played. This will provide evidence that the central station carried out a particular function as all calls are recorded at the central station. Site Access Pass Code The AV Unit has the ability to use a pass code which must be entered by the central station before they can gain access to the audio on site. The pass code function is normally disabled to use this facility refer to "programming" on page 9. The pass code will be retained even if the power is removed from the AV unit and can only be programmed or changed "on site" LED Indicators There are 4 LED's to provide information regarding the status of the AV60 Unit during the various operating sequences. REC AL LINE ACK Indicates when the unit is recording. Indicates when the unit has been activated by the alarm. Indicates the unit is "on Line" or in Commission mode Indicates that the first control tone has been accepted and is now waiting for the second tone. 7 Programming The AV unit can be programmed on site by using the option switches fitted to the unit. SW1 No 1 2 3 4 5 6 7 8 Option Input Type Recording Relay Star Services Audio sequence C/S Not used Test Mode ON Positive Start on SET Remotely Controlled Not in use "Live" audio on answer Not Used Off OFF Negative Start on ALARM Auto switched on "Answer" Active "Stored" audio on answer Active Test mode Since the outputs available from Alarm Control Panels are varied, the AV60 can be programmed for control by either positive or negative voltages. The "Jumper link" is used to select either pull up (to 12v) or pull down (to Gnd) Control inputs Switch 1 Provides the option to activate the Control Inputs by applying +ve or ­ve voltages. Control Panel Outputs Switched to +12V on activation Normally +12v, removed on activation Switched to 0V on activation Normally 0V, removed on activation Note : Switch 2 ON OFF Switch 1 ON OFF OFF ON Jumper link Pull Down Pull Down Pull Up Pull Up Any unused Part Set Inputs must be linked to +12v Any unused Part Set inputs must be linked to 0V Selects the recording Start Time Records all the time while the system is SET Starts recording only when an alarm as activated. Switch 3 8 Selects how the Relay is to be controlled ON Controlled remotely by the monitoring station using DTMF Tones OFF Automatically switches when AV60 answers incoming call (refer to page 6) Selects the use of BT Star Services. (refer to page 6) ON Star Services not in use OFF Star Services enabled Selects the audio available to the monitoring station immediately the AV60 answers following their Dial up and "listen in" to site. ON All channels open and listening to Live Audio. OFF Listening to stored Audio for 30 seconds. Disables the requirement for a Communication Successful confirmation. ON No C/S connection required. (e.g. when used with "Redcare") OFF C/S confirmation required. not used. Selects Test/commissioning mode. ON Normal operation OFF Unit in "Test Mode". Commissioning Switch 4 Switch 5 Switch 6 Switch 7 Switch 8 Note : Unit must not have AL or Set inputs activated (i.e. Check No LED's illuminated) Plug a DTMF handset into the unit. Enter Test Mode - Switch 8 to OFF. The LINE Led will illuminate. The unit can now be exercised by simulating the Central Station functions (refer to Page 11) Exit Test Mode - Switch 8 to ON. The LINE Led will extinguish. The following are the operations only available at site :To Record site announcement message 1: 2: 3: 4. 5. Press 0 2 on the handset (The REC Led will come on) Record message (up to 10 seconds) The REC Led will go out after the recording time has expired or a button has been pressed to end the recording. The unit will now store the site message into memory and beep when it is finished. The message will now be played back for confirmation. Enable Pass code 1: 2: 3: Press # 7 on the handset Enter the 4 digit code e.g. 1 2 3 4 Press Disable Pass code 1: 2: 3: Press # 7 on the handset Press # Press 9 MICROPHONE UNIT (PR086) Detect LED : Live LED : Features This led illuminates as the unit responds to audio detection (primarily used for commissioning) This led is illuminated when the AV Unit is in "listen in" mode and cannot be disabled by the user. Connections connected to 0V, Audio in and 12V of Audio channel of AV Unit connected to "SW WHEN LIVE" terminals of AV Unit. 0V, Out, 12V : Active Input : note : failure to make this connection will invalidate the approval status of this unit Tamper : connected in series with security system tamper loop. Note : The Microphone Unit is not adjustable. The "Gain" of each unit has been factory set. It is therefore important that the location of each unit to be installed is carefully considered such that it provides the optimum performance. Specification Operating Voltage : 9 to 15V d.c. Operating Temperature : 0 - 40 deg.C Quiescent Current (Leds off) : 5mA (nominal) Quiescent Current (Leds on) : 15mA (nominal) Tamper (Clean contacts) : rating 50mA (at 12V d.c.) Microphone : Omni- directional Frequency Range : 50Hz - 10KHz Dimensions : 55 x 65 x 50mm Weight : 50g 10 Control Tones Tone 0 1 2 3 4 5 6 7 8 9 #1 #2 #3 #4 #5 #6 #7 00 01 02 03 04 05 06 07 08 09 Function All channels on Channel 1 only Channel 2 only Channel 3 only Channel 4 only Channel 5 only ...