Audio Alarm Verification (Aav) Unit; Aav Module Operation; Aav Module Connections - ADEMCO VISTA-120 Installation And Setup Manual

Audio Alarm Verification (AAV)
This section provides the following information:
General
Information
AAV Module
Operation
–46–
SECTION 11
• General information about the AAV option
• AAV operation
• Connecting an Eagle AAV Module
An Audio Alarm Verification (AAV) module (also known as two-way voice), such
as the Eagle 1250, is an add-on accessory that permits voice dialogue between an
operator at a central station and a person at the alarm installation, for the
purpose of alarm verification. This feature is supported only if alarm reports are
programmed to be sent to the primary phone number.
The AAV module connects from module terminals 7 & 8 to the control's zone 5
terminals 16 & 17. The purpose of this connection is to silence and restore the
sounders at the premises. It is also used to postpone non-critical dialler reports
while the AAV session is in progress. Note that zone 5 is then no longer available
as a protection zone. When using the AAV, zone 5 must be assigned a zone
response type (e.g. response type 10), and option 1*60 and 1*66 must be selected
as 1 to silence sounders on the premises. If 1*60 and 1*66 are not enabled,
conversation with the premises will be difficult (too much noise on the premises).
After all messages have been sent during a reporting session to the primary
phone number, the control will trigger the AAV if at least one of the messages
was an alarm report. If Contact ID format is selected for the primary phone
number, and the cancel report field *81 is programmed as non-zero, the control
will send a "listen-in to follow" message (event code 606), which signals the
685(rev. 4.6 or higher) to hold the phone connection open for 1 minute.
Once triggering occurs, the control will give-up the phone line to the AAV
module, without breaking the connection with the central station. During the
time the AAV is active, all sirens and all continuous keypad sounds in all
partitions will be shut off if fields 1*60 and 1*66 are enabled. When the AAV
indicates that the audio alarm verification session is completed, all keypad
sounds will be restored. Sirens will be restored if the alarm timeout period has
not expired.
As part of its fail-safe software, the control will limit all audio alarm verification
sessions to 15 minutes (this is because once the session begins, the AAV module
controls the duration). If a new fire alarm should occur during a session, the
control will break phone connection and send the new fire alarm report, then re-
trigger AAV mode.
conversation will be held until either the AAV module signals that it is inactive,
or the 15 minute timeout occurs.
One way to trigger the AAV module is by selecting option 3 in field 1*46 and
make connections as shown in the VOLTAGE TRIGGER diagram. Field 1*46
can be used to set ground start, remote console sounding, or long range radio
open/close trigger. If any one of these functions are absolutely necessary in a
given installation, the alternative AAV trigger method is via the use of a 4204
relay as shown in the RELAY TRIGGER diagram. If this method is selected, the
start and stop conditions for that relay must be set to choice 60 = "Audio Alarm
Verification" during relay programming, via #93 menu mode.
Some AAV modules allow remote triggering by ring detection at the alarm
installation. Please be advised that if this option is selected, it may defeat
modem download and 4285 VIP module remote access capability.
switch settings shown on the triggering diagrams disable the remote AAV
module trigger option. The control also requires that the AAV module trigger
type is falling edge, which is set using the 1250's DIP switches.
All other dialler messages triggered during on-going
The DIP