Icom IC-A220 Installation Manual
INSTALLATION GUIDE
VHF AIR BAND TRANSCEIVER
iA220
Thank you for choosing this Icom product.
READ
ALL INSTRUCTIONS carefully and completely
before using this product.
Icom, Icom Inc. and Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany, France, Spain,
Russia, Australia, New Zealand, and/or other countries.
q
Mounting bracket ………………………………………… 1
w
D-Sub 25 pin connector ……………………………… 1
e
Connector pins (M39029/63-368) ……………………… 25
r
Screws Bind UNC (No. 4 × 3/8) ……………………… 2
t
K-Lock Nut (No. 4) ……………………………………… 2
y
BNC -LP ………………………………………………… 1
u
Washer (Icom washer V) ……………………………… 1
i
C-shaped ring …………………………………………… 1
o
Antenna cable clip ……………………………………… 1
!0
Self crimping nut (No. 6) ……………………………… 1
!1
Screw (No. 6 × 1/2) ……………………………………… 1
!2
Nut (No. 6) ……………………………………………… 1
!3
Crimp nuts (No. 6) ……………………………………… 6
!4
Speed nut UNC (No. 6) ………………………………… 4
!5
Screws (No. 6 × 1/2) …………………………………… 6
!6
COMM1 sticker ………………………………………… 1
!7
COMM2 sticker ………………………………………… 1
z
SUPPLIED ACCESSORIES
q
w
e
r
t
y
u
i
o
!0
!1
!2
!3
!4
!5
!6
!7
1. Check the quantity of parts.
See z
SUPPLIED ACCESSORIES.
2. Prepare miscellaneous items required for installation.
See miscellaneous items in z
SUPPLIED
ACCESSORIES.
3. Prepare the required wiring.
See n
CONNECTOR INFORMATION andm
CONNECTING THE CABLES FOR D-SUB 25 PIN.
• If you want to use the MBA-3 connector, see
b
USING
THE MBA-3 and , CONNECTING THE CABLES FOR
CARD EDGE CONNECTOR.
4. Assemble supplied mounting bracket and other parts.
See
.
MOUNTING BRACKET ASSEMBLY.
5. Cut the mounting hole.
See
⁄0
MARKING A MOUNTING HOLE.
6. Mount the transceiver into the mounting bracket.
See
⁄1
MOUNTING TO THE BRACKET.
7. Check the transceiver operation.
See
⁄2
OPERATION CHECK.
x
IMPORTANT
c
INSTALLATION PROCEDURES
NEVER bend the cables sharply or place the cables too near
the aircraft control cables.
NEVER connect the transceiver to a power source
using reverse polarity. Reverse polarity will damage the
transceiver.
DO NOT place the transceiver where hot or cold air blows
directly on it.
DO NOT place the transceiver in areas with temperatures
below –20˚C or above +55˚C (–4˚F to +131˚F).
To prevent voltage drops, solder or crimp the cable lug when
connecting the DC power cable to the power supply.
Use a 50 Ω, vertically polarized, VHF air band antenna.
VSWR should be less than 2.5:1.
Mount the antenna on a flat metal surface or install a ground
plane of at least 120 cm
2
(18 in
2
).
v
PRECAUTIONS
When installing the transceiver with card edge connector, use
the optional MBA-3 as described below.
D
Attachment
1. Unscrew the 10 bottom screws, then remove the
bottom cover from the transceiver.
2. Unscrew the four rear plate screws.
3. Disconnect the I/O cable connectors J3, J4, and coaxial
J6, and then remove the rear plate from the transceiver.
Transceiver
Rear plate
J6
J4
J3
4. Connect the I/O cable connectors and coaxial onto the
MBA-3 as illustrated below.
Transceiver
MBA-3
5. Attach the MBA-3 to the transceiver with the five rear
plate screws.
6. Replace the removed bottom cover and 10 screws.
b
USING THE MBA-3
D
Power cable wiring
Use 2 pairs of #20 AWG wire for the power and power
grounding connections.
Rear view
5
13
14
25
1
15
4
Circuit breaker
(10 A)
+
13.8 V DC
or 27.5 V DC
Power ground
_
•
Circuit breaker
To prevent physical damage, a 10 A circuit breaker
MUST be
installed in the DC power line in the aircraft. Install the circuit
breaker in the aircraft breaker panel or instrument panel to
ensure easy access during flight.
•
Power Ground
Connect the transceiver power ground to the aircraft ground.
D
Yoke-mounted memory and frequency exchange
switches
For the yoke-mounted memory and frequency exchange
switches, use a two-position spring loaded rocker switch or 2
separate momentary push switches.
Rear view
D
Transmit/receive interlock connections
When 2 transceivers are installed, connect pin 2 to the
other transceiver
’s
PTT line, and connect pin 16 to the other
transceiver
’s
interlock line to prevent both transceivers from
simultaneously transmitting.
However, when 2 transceivers are installed through a dual
audio panel, the connections are not necessary.
D
Audio line connections
Use #20 ~ #24 AWG wires for connections.
Rear view
1
13
14
25
1
13
14
25
9 10 11
16 17
18
19
20
9 10
16
18
19
20
12
22
23
22 23
12
PTT switch
• Connecting 1 headset
• Connecting 2 headsets with intercom
External
speaker
Intercom switch
Microphone
jack 1
Microphone
jack 2
Headphone jack 1
Headphone jack 2
PTT switch
Microphone
jack
External
speaker
Headphone jack
Audio
control
panel
Audio
control
panel
Auxiliary audio 1
Auxiliary audio 2
Auxiliary audio 3
Auxiliary audio 3
Auxiliary audio 2
Auxiliary audio 1
D
GPS receiver connection
Connect the GPS receiver’s input terminal to the pin 7, and
output terminal to pin 8.
Rear view
7
13
14
25
8
1
GPS
receiver
GPS receiver’s input
GPS receiver’s output
m
CONNECTING THE CABLES FOR D-SUB 25 PIN
D
D-sub 25-pin
D
Card edge connector (For optional MBA-3)
n
CONNECTOR INFORMATION
Pin
I/O
Description
Pin
I/O
Description
A
I
External Dimmer Control
1
Out RS-232C Serial data (TXD)
B
–
(reserved)
2
In RS-232C Serial data (RXD)
C
In Auxiliary audio 2
3
In Auxiliary audio 3
D
In Auxiliary audio 1
4
–
Auxiliary audio 1/2/3 (GND)
E
Out External speaker (4 Ω/5 W)
5
–
External speaker (GND)
F
–
Aircraft ground
6
–
Aircraft ground
H
Out Headphones audio (500 Ω/60 mW)
7
–
Headphones audio (GND)
J
In Microphone 1 (600 Ω)
8
–
Microphone (GND)
K
In Microphone 2 (600 Ω)
9
In PTT*
L
In Memory channel switch*
10
In Intercom switch*
M
–
(reserved)
11
–
(reserved)
N
I
Transmit/receive interlock
12
In Frequency exchange switch*
P
–
(reserved)
13
–
(reserved)
R
In DC power + (13.8/27.5 V)
14
In DC power + (13.8/27.5 V)
S
–
Aircraft ground
15
–
Aircraft ground
*Ground to activate.
Pin
I/O
Description
Pin
I/O
Description
1
In Memory Channel Switch*
14
–
Aircraft ground
2
In Transmit/receive Interlock
15
–
Aircraft ground
3
In Frequency Exchange Switch*
16
In PTT*
4
In DC power + (13.8/27.5 V)
17
In Intercom switch*
5
In DC power + (13.8/27.5 V)
18
Out External speaker (4 Ω/5 W)
6
–
RS-232C Serial data (GND)
19
–
External speaker (GND)
7
Out RS-232C Serial data (TXD)
20
Out Headphones audio (500 Ω/60 mW)
8
In RS-232C Serial data (RXD)
21
In External Dimmer control
9
–
Microphone (GND)
22
–
Headphones audio (GND)
10
In Microphone 1 (600 Ω)
23
In Auxiliary audio 3
11
In Microphone 2 (600 Ω)
24
–
(reserved)
12
In Auxiliary audio 1
25
–
(reserved)
13
In Auxiliary audio 2
*Ground to activate.
A B C D E F H J K L M N P R S
1 2 3 4 5 6 7 8 9 101112131415
Front view
Polarizing key (user supplied)
Rear view
1 2 3 4 5 6 7 8
16 17 18 19 20
14 15
9 10 11 12 13
21 22 23 24 25
The following accessories are supplied with the transceiver.
Carefully check the quantity of each part.
The following items are required for installation but are
NOT
supplied with the transceiver.
• VHF antenna for the air communication band
• Various cables
• An antenna cable with a BNC connectors (50 Ω)
• Switches to be mounted on the aircraft yoke
• Headphones. (500 Ω)
• Low-impedance carbon or dynamic microphone
• Preamplifier for a dynamic microphone
D
COMM1 and COMM2 stickers
When 2 transceivers are installed, attach the supplied COMM1
and COMM2 stickers to distinguish one from the another.
COMM
COMM1 or COMM2 sticker
READ THIS INSTALLATION GUIDE
CAREFULLY
before
install
the
transceiver. This installation guide contains
important safety instructions.
NEVER install the transceiver where normal navigation of
the aircraft may be hindered.
NEVER install an antenna near any aircraft projection,
engine, or propeller.
Install a circuit breaker between the aircraft battery and the
transceiver.
Check operation after installation.
Install the transceiver according to the procedures of this
installation guide.
The antenna should be spaced at least 40 cm (1.3 feet)
from any position occupied by any person on board the
aircraft or the vehicle.
OR
1
13
14
25
1
13
14
25
Memory switch
Frequency exchange switch
Memory switch
Frequency exchange switch
3
3