AMS42/AMS44 Dual Channel Audio Controller
SM19 Installation and Operation Manual
May 29, 2012 Rev: 5.00
Page 3-1
ENG-FORM: 806-0100.DOTX
CONFIDENTIAL AND PROPRIETARY TO ANODYNE ELECTRONICS MANUFACTURING CORP.
Section 3.0 Operation
This section is divided to provide model-specific Operational instructions.
Operation Instructions for the
AMS42
can be found in
Sections 3.1 to 3.6.
Operation Instructions for the
AMS44
can be found in
Sections 3.7 to 3.12
.
3.1
AMS42 - General Operation
The AMS42 provides one central controller for all the aircraft audio, allowing selection of transmit and
receive audio, LIVE, KEYED, or VOX intercom, interface for an additional handheld transmit microphone
(hand mic), and pilot/copilot isolation/emergency operation. Typical definition of the unit has the ‘pilot’ on
the right side of the controller, and the ‘copilot’ and passe
ngers on the left side. This can be easily re-
configured at the time of installation for alternate seating arrangements.
Individual control over receive and transmit functions is provided for both the pilot and copilot (observer),
and a common control is provided for LIVE, KEYED and VOX ICS operation. An additional control is
provided for NORMAL, EMERGENCY, or ISOLATE (pilot cut off from ICS audio) operation.
Sidetone (S/T) level is adjustable internally, and Receive (RX) and Intercom (ICS) levels are adjustable
on the front panel. All audio, except the S/T of the radio in use and any Type ‘B’ DIRECT AUDIO input
signals, are muted during transmit for clarity. ICS operation allows transmit during any ICS mode by
using the PTT switch.
3.2 AMS42
-
Audio
Alerting
Functions
No internal audio alerting is provided in the AMS42. Two direct (unswitched) inputs are provided to allow
airframe alerting signals to be routed to the pilot. See Section 3.4.5 (Auxiliary Inputs) for more
information.
DIR AUD #1 is amplified by the Audio controller, and can not be heard when the Mode Switch is in the
EMER position. DIR AUD #2 is not amplified, and is audible at all times.
