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Alarm audio verification cannot be used for UL installations.
Alarm Audio Verification (Two-Way Voice Feature)
This feature allows the central station operator to listen, talk to or conduct a two-way conversation with an
individual(s) at the premises. It also assists the operator in gathering information about the nature and
location of the alarm that may be helpful in responding to police and fire departments. All LYNXR-Series
control panels are capable of supporting the Two-Way Voice feature, however only the LYNXR-EN has this
feature built in. The LYNXR/LYNXR24 requires the installation of the Audio Verification Module (LYNX-
AVM). For further information regarding the LYNXR/LYNXR24 Two Way Voice Feature refer to the LYNX-
AVM Installation and Setup Guide. The LYNXR-EN does not make system announcements when the Two-
Way voice feature is active.
Activation
The LYNXR-EN sends the “alarm message” followed by a “Listen-in-to-Follow message” (Contact ID® code
606) to the Central Station. The Listen-in-to-Follow message causes the Central Station’s digital receiver to
temporarily hold the phone line for approximately 1-minute. When the LYNXR-EN receives the “kissoff”
from the central station, indicating that the alarm message has been received, the Two-Way Voice (AVM)
feature is activated in the (default) “Listen Mode” and sirens and keypad sounds are discontinued. The
LYNXR-EN transmits a beep acknowledgment to the Central Station, once per second. The beep alternates
between two tones and indicates that the LYNXR-EN is waiting for a session command from the Central
Station operator. Once a command is issued the beep acknowledgement is discontinued, however, if a
command is not issued within two minutes the system will “time out” and the call will be terminated.
Operator Commands
The Central Station operator begins the session, which last 5 minutes, by entering one of the valid AVM
commands shown in the table below. The session may be extended 5 minutes, without changing the
operating mode, by pressing the [7] key on the touch-tone phone. Selecting another operating mode also
resets the session an additional 5 minutes. During the last minute of the 5 minute, session, the LYNXR-EN
generates two beeps every 30 seconds to alert the Central Station operator that the session is about to time
out. The Central Station operator may then extend the session by pressing the [7] key on the touch-tone
phone. If the session is not extended the phone line is disconnected, and the session is ended. Sessions may
be ended at any time by pressing the [9] key on the touch-tone phone. The AVM modes are described as
follows:
Note: When entering AVM commands make sure the Central Station receiver has been disconnected from the phone line, otherwise
AVM commands may not go through.
Key Function
1 Talk Mode: Pressing the [1] key on the touch tone phone, enables one-way voice communication from the central station
to the violated premises, and allows the operator to talk communicate through the LYNXR-EN speaker. In this mode the
ARMED (red) and READY (green) LEDs blink alternately.
2 VOX (Voice) Mode: Pressing the [2] key on the touch-tone phone, enables two-way voice communications between the central
station and the violated premises. In this mode the ARMED (red) and READY (green) LEDs blink alternately.
3 Listen Mode: Pressing the [3] key on the touch-tone phone, enables one-way audio from the violated premises to the central
station. The Listen Mode is the start up default mode of the voice feature and allows the operator to listen through the
LYNXR-EN microphone. This mode does not affect the existing LED pattern.
7 Extends the session 5 minutes without changing its operating mode.
9 Ends the session and disconnects the phone line.