Audio Visual Notification Module (AVN-1)

Features and Benefits

  • Audio and visual notification of alarm/hazard conditions
  • Event triggered audio file playback and light/strobe activation
  • Speaker can be driven by local files or external audio input
  • Fully Sealed Enclosure (NEMA 4X, 6, 13 Protection)
  • -40°C to +65°C (-40°F to +149°F) Operating Range
  • -40°C to +85°C (-40°F to +185°F) Storage Range
  • MIL-S-901D Grade A for High Impact Shock (Pending)
  • MIL-STD-167B for Vibration (Pending)
  • MIL-STD-461E for Electro-Magnetic Interference (Pending)
  • Supports Hot Swapping


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The Chameleon Audio Visual Notification Module (AVN-1) produces audible and/or visual indication of user-defined system alarm conditions.  The module can play soundtracks stored in its onboard non-volatile memory or amplify a signal from an external audio input in response to internal or external alarm triggers.  A high-intensity LED also provides visual indication of the alarm condition.  The visual alarm can be configured to remain steady on or flash on and off at a user-configured frequency.  The high-brightness LED can be factory ordered in several colors, including white, red, or green.

The AVN-1 can store up to three 30-second audio soundtracks.  The playback of each soundtrack can be individually triggered via its discrete inputs or via backplane commands from a neighboring module.  Audio tracks are stored in standard Waveform file format (.wav) and can be downloaded to the device over its wireless infra-red interface.

When the AVN-1 is combined with the Chameleon Alarm Switchboard Module (ASM-1), they form an ideal replacement for legacy Navy IC/SM alarm panels.  The standard IC/SM alarm sound is one of the default soundtracks stored on the unit.

Both the audible volume and LED intensity can be adjusted with pushbuttons on the front face of the device.  The current volume and intensity settings are indicated on a pair of ten-element bargraphs.  The pushbutton controls can be disabled and the brightness and volume settings can be pre-configured to fixed levels.

The AVN-1 contains sync input and sync output channels that allow coordinated alarming between daisy-chained units (i.e., coordinated soundtrack playback and light flashing).

As with all Chameleon modules, the AVN-1 offers unequaled ruggedness.  It is specifically designed for sustained operation in severe environments, including those characterized by extreme shock, vibration, electro-magnetic interference, temperature, and/or humidity.  Its fully-sealed enclosure (sealing end-caps not pictured) ensures long-lasting operation in the grimiest settings.

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Operating Ambient Temperature Range -30°C to 60°C
Storage/Transport Ambient Temperature Range -40°C to 80°C
High Impact Shock MIL-S-901D, Grade A (Pending)
Mechanical Vibration MIL-STD-167B, 0-50Hz (Pending)
Electro-Magnetic Interference MIL-STD-461E (Pending)
Facial/Housing Protection NEMA 1,2,4,4X,5,6,12,12K,13
Frequency 300 to 9000 Hz
Nominal Sound Pressure 80 dB
Number of Tracks 3 Files at 640KB max per file
Maximum playing time per file Approx. 30 seconds
Audio File Format WAV with modified header
No. of Channels 1
Sample Rate 22.05KHz
Bits/Sample 8
Audio Format 1 (PCM Codec)
Frequency Response 300Hz – 8000Hz
Maximum Peak-to-Peak Voltage Input 7.5 VDC
Quantity 3
Maximum Allowable Continuous Input Voltage 70 VDC or 50 VAC RMS
Logic High Voltage Range 5-70 VDC or 24-50 VAC RMS 55-500 Hz
Minimum Duration for Logic High Detection 4 ms
Logic Low Voltage Range 0-1 VDC or 0-0.5 VAC RMS 55-500 Hz
Minimum Input Duration for Logic Low Detection 56 ms
Minimum Input Current Required (AC and DC inputs) 5 mA RMS
Electrical Isolation: Any input to control circuitry or chassis ground 1240 VRMS for 1 minute
Maximum Power Consumption 15 W
Supported Cable Diameters Two glands 0.24”-0.47”; six glands 0.16”-0.31”
Supported Wire Gauges 16-28 AWG
Audio Alarm Indication 80dB Loudspeaker
Volume Control UP/DOWN buttons; 11 settings from Mute to MAX
Volume Indication Ten Element Bargraph
Visual Alarm Indication Ultra-Bright LED (available in red, white, or green)
Visual Alarm Brightness Control UP/DOWN buttons; 11 settings from MIN to MAX
Visual Alarm Brightness Indication Ten Element Bargraph
Status Readout One three-color (red/yellow/green) LED Indicator
IR Wireless Interface


Weight 2.85 lbs
Front Panel Dimensions 4” W x 6” L
Enclosure Height 3″ H

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The following part numbers can be used when ordering the AVN-1.

The following base module part numbers include the enclosure with EMI wiring glands, active board, and wiring hub:

Fairmount Part Number


AVN-1 or 01012-064

Chameleon Audio Visual Notification Module

Spare/Replacement Parts:

Fairmount Part Number


11068-200 Chameleon Audio Visual Notification Module (AVN-1) Active Board and Full-Size Cover — Replacement faceplate for AVN-1
11069-100 Chameleon Audio Visual Notification Module (AVN-1) Wiring Hub Assembly — Replacement W/H for AVN-1

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