Air Comm Systems ACS 2010 Specification sheet

Air Comm Systems Inc.
1640 W. Acoma Blvd., Suite A-118
Lake Havasu City, AZ 86403
Phone [phone]
FAX [phone]
E-Mail [e-mail]
Air Comm Systems, Inc.
Single Audio Mixer Panel
Operations and Installation Manual
ACS 2010 Revision 1.3
AirComm
Airborne Audio Products

Air Comm Systems, Inc. Page 2
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Installation
Physical and Operating Specifications Page 3
Physical Dimensions Page 4
Interface Schematic Page 5
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Operation
Front Panel Controls Page 6-7
Front Panel Controls Pictorial Page 8
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Addendum
Instruction for Continued Airworthiness Page 9
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Warranty Information
Warranty Information Page 10
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Supplemental Information
Product Schematics ________
ACS 2010 Operations and Installation Manual
Table of Contents

Air Comm Systems, Inc. Page 3
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Physical Specifications
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Operating Specifications
ACS 2010 Operations and Installation Manual
Physical and Operating Specifications
SIZE: 5.75 in. (14.61cm) W WEIGHT: 1.25 lb. (.56kg)
1.50 in.( 3.81 cm) H
5.03 in.(12.77cm) D MOUNTING: Dzus rail mount
CONTROLS: Panel mounted - transmit = rotary switch, audio inputs = potentiometer,
volume control = dual potentiometer
ILLUMINATION: Edge lit front panel per MIL-P-7738E, type 3. Capable of connection to
dimmer bus for adjustment. Amber transmit light indicates when unit is in
transmit mode.
INPUTS: 5 selectable receive audio inputs and 6 transmit selections.
DUTY CYCLE: Continuous POWER REQUIREMENTS: 28V DC +/- 10%
MAXIMUM OPERATING ALTITUDE: 22,000 ft.
OPERATING TEMPERATURE RANGE: -40 C to +85 C (operating)
-65 C to +125 C (storage)
CURRENT DRAIN: 70 mA at 28V (standby) - 500mA at 28V (max. signal)
AUDIO OUTPUT: Minimum 250 mW into 600 ohms
FREQUENCY RESPONSE: Within 6 db - 300-3000Hz
ICS INPUT IMPEDANCE: 600 ohms
RECEIVER INPUT IMPEDANCE: 600 ohms - matched to receiver
INPUT ISOLATION: Not less than 50 db between inputs
AUDIO MUTING: Not less than 40 db during transmit/ICS (optional)
MIKE SENSITIVITY: 300 mV for rated output
DISTORTION: Less than 10% at 1000 Hz for maximum output

Air Comm Systems, Inc. Page 4
Physical Installation
The ACS 2010 is designed to be Dzus mounted and should be installed in the aircraft using the DC37SL-F
Installation kit that is included. The above outline drawing of the unit with dimensions will facilitate the
installation.
The connector pin configuration of the ACS 2010 rear connector and the recommended wire size for the
aircraft cable harness is shown on the following page. Be sure that adequate clearance is allowed for the
rear connector and cable harness.
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Physical Dimension Outline for mounting
ACS 2010 Operations and Installation Manual
Physical Dimensions

Air Comm Systems, Inc. Page 5
The ACS 2010 wiring harness should be constructed of Tefzel aircraft wire (M22759/16 grade). Power and
ground wires should be 18 or 20 AWG, and all other wires may be 22 AWG. Shielded wires should be used
where noted. Adequate protection against wear and chafing should be taken by using a braided cable sleeving
or jacket. Before completing installation, verify that all cable connector pins are seated properly and that the
connector is securely mounted to the unit mating connector.
Pre-fabricated cable harnesses are available from Air Comm to expedite installation  consult our sales
department for details.
POWER GROUND
c
b
a
Z
Y
X
W
V
U
T
S
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
LIGHT DIM
ICS BUSS
PA KEY/MXD AUDIO
PA MIC HI
INPUT 5 AUDIO
INPUT 5 KEY
INPUT 5 MIC HI
INPUT 4 AUDIO
INPUT 4 KEY
INPUT 4 MIC HI
INPUT 3 AUDIO
INPUT 3 KEY
INPUT 3 MIC HI
INPUT 2 AUDIO
INPUT 2 KEY
INPUT 2 MIC HI
INPUT 1 AUDIO
INPUT 1 KEY
INPUT 1 MIC HI
SHIELD GROUND
HEADPHONE AUDIO
ICS KEY
TRANSMIT KEY
MICROPHONE HI
14 OR 28VDC POWER IN
ACS 2010
AUDIO PANEL
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Connector Pin-out
ACS 2010 Operations and Installation Manual
Interface Schematic

Air Comm Systems, Inc. Page 6
ACS 2010 Operations and Installation Manual
Front Panel Controls
( See Figure 1  Page 8 for pictorial )
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1 - Norm - Emer Switch
This switch controls the operations of the audio panel in the event of an audio amplifier failure. In the up
position (NORM) the audio panel is in normal operating mode. In the down position (EMER) all audios are
summed and then fed directly to the headphones. This enables the use of the transmitters and other
equipment during audio amplifier failure.
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2 - QUICK ADJUST Adjustable Receive Audio Volume - On/Off Pots
Any Receive audio can be selected and muted using innovative new QUICK ADJUST volume pots. A
receive audio is selected by pulling out the knob toward the operator. With the receive audio activated, the
headphone volume of the audio can then be adjusted to the desired level. Turning the knob in a clockwise
direction increases the volume level, and turning in the counter-clockwise direction decreases the volume
level. To mute the receive audio, the knob only needs to be pushed back in. The volume for that audio
remains set at the desired level and does not need to be reset the next time it is selected.
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3 - ICS Volume Control
This knob adjusts ICS headphone volume. Clockwise rotation increases the volume - counter clockwise
rotation decreases the volume.
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4 - Lighting
The audio panel is lit by two 28V lamps ( P/N 327 ) which provide night time visibility for all panel legends.
These lamps can be replaced in the event of a failure by unscrewing the front panel mounted filter cap,
inserting a new lamp, and reinserting the filter into the front panel.

Air Comm Systems, Inc. Page 7
ACS 2010 Operations and Installation Manual
Front Panel Controls
( See Figure 1  Page 8 for pictorial )
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5 - Mic Selector
This rotary switch performs three functions simultaneously. It (a) connects the mic to the selected
transmitter (b) selects the associated keyline, and (c) selects the associated audio (if not already selected
using the audio select-mute volume pot).
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6 - Transmit Indicator
When the transmit key is activated this indicator lights up to show that the audio panel is in the transmit
mode.
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7 - ICS Switch
This switch selects the ICS mode. In the up position the audio panel is connected to the common ICS
buss. This enables the audio panel to communicate with any other audio panels also connected to the
common ICS buss. In the center position ( OFF ) the audio panel is disconnected from all other panels.
In the down position ( HOT ICS ) the headphone mic becomes active and its signal is fed into the ICS buss
without having to depress the ICS key switch. This provides for  hands-off  ICS operation.

Air Comm Systems, Inc. Page 8
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Figure 1 - Front Panel Controls
ACS 2010 Operations and Installation Manual
Front Panel Controls

Air Comm Systems, Inc. Page 9
ACS 2010 Operations and Installation Manual
Addendum
Instruction for Continued Airworthiness
Instruction for continued airworthiness for Audio Mixer Panel Model ACS-2010 Series, Part
Number 1004-000.
GENERAL DESCRIPTION:
The Audio Mixer Panel consists of a Dzus mounting located in the cockpit or cabin area which
provides access to multiple radios for transmitting and receiving. It also provides intercom, both
keyed and VOX between other audio mixer panels or slave units located elsewhere in the aircraft.
PURPOSE:
To provide instructions for the maintenance and inspection of the Air Comm Systems, Inc. Model
ACS-2010 Series Audio Mixer Panels.
This Manual provides instructions supplementing the aircraft maintenance manual. These
instructions only supersede the aircraft manual in the indicated areas.
OPERATIONAL CHECK:
The Audio Mixer Panel should be checked prior to first flight each day per current operations
manual.
MAINTENANCE:
Check security and condition of Dzus mounted panel(s), check associated wiring hareness at
periodic inspections such as annual/100 hour IAW FAR43 Appendix D(i).
On Condition.
Send Audio Mixer Panel(s) to qualified repair facility for any repairs. Contact Air Comm
Systems, Inc. Phone [phone] or FAX [phone] for nearest factory authorized
repair facility.

Air Comm Systems, Inc. Page 10
ACS 2010 Operations and Installation Manual
Warranty Information
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Warranty Information
Air Comm Systems, Inc. warrants each new product to be free from defective material and
workmanship and agrees to remedy any defect or to furnish a new part in exchange for any
defective unit provided an examination discloses such defect occurred under normal use and
service, and provided the defective unit is delivered to us, with transportation charges prepaid,
within 1 year from the date of acceptance of equipment by the owner. Each unit required and
claimed defective must be returned to:
Air Comm Systems, Inc.
1640 W. Acoma B lvd., Suite A-118
Lake Havasu City, AZ 86403
Attn: Service Dept.
Phone [phone]
FAX [phone]
EMail [e-mail]
This warranty does not extend to any products which have been subjected to misuse, neglect,
accident, or in violation of instructions furnished, nor does it extend to units which have been
repaired or altered outside of our factory except where such repairs are specifically authorized in
writing by us.
This warranty is in lieu of all other warranties expressed or implied, and no representative or
person is authorized to assume for us any other liability in connection with the sale of our
products.