Specifications
Audio International, Inc. A/V-9691-01(-02)-x Installation & Operation Manual
Document # 540250, Rev D, 07/2004
Page 6 of 33
2.1.6 The A/V-9691-01(-02)-x allows up to eight (8) video inputs and 16
video outputs. These video outputs allow the distribution unit to
display multiple video inputs on separate monitors independently.
2.1.7 The A/V-9691-01(-02)-x is equipped with a video briefer key input.
This source is configurable via the RS-485 data bus. Power up
default video selection is configurable for each video output. (Video
briefer and audio briefer are independent of each other.)
2.1.8 The A/V-9691-01(-02)-x allows for full aircraft chime/page
functionality. Below, several references are detailed to outline the
capabilities of the chime/page section of the unit.
Microphone Audio Inputs: Three (3) prioritized microphone audio
inputs are presented for use (Pilot, Copilot, and Cabin). Each
microphone PTT (Push-To-Talk) input is ground active (<1.2 VDC
to activate). Audible tone activation is configurable for each
microphone PTT activation to allow either an on tone and/or an off
tone when the PTT input is activated and/or deactivated.
Microphone Audio Inputs for the A/V-9691-01-x have a maximum
gain of 1 while those of the A/V-9691-02-x have a gain of 3.
Microphone Biasing: A bias configuration is possible for each the
Pilot and Copilot microphone audio inputs. Bias supply is externally
configurable via jumper connections to the A/V-9691-01(-02)-x.
The Cabin microphone has bias supplied internally and is non-
configurable for bias implementation.
To enable biasing for the Pilot and Copilot microphone audio
inputs, the respective Jumper #1 and Jumper #2 pins for each
microphone must be connected together (i.e., P12-6 must be
connected to P12-39 to enable bias for the Pilot microphone).
If the bias jumpers are not used, then no internal biasing will be
supplied to the Pilot and/or Copilot microphone audio inputs.
Biasing for the Pilot and Copilot microphone audio inputs is defined
as follows:
Open Circuit Voltage: +16 VDC maximum
+14 VDC minimum
Short Circuit Current: 37 mA maximum
27 mA minimum