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2.8
KMA 28B Pin assignments
Chassis Ground
MKR Coax Shield
MM Sense Output
MKR Antenna
Pilot Headphones (rt)
White Lamp Output
Amber Lamp Out
14 V Light Hi
Blue Lamp Out
Light Lo
DME Audio Hi
28V Lights Hi
Com 2 Mic Audio Hi
Pilot Mic Audio Hi In
Com 3 Audio Hi
Com 1 Audio Hi
Com 3 Mic Audio Hi
Com 2 Audio Hi
Com 1 Spkr Load
AUX Audio Input Hi
Com 2 SPKR Load
Nav 1 Audio Hi
Nav 2 Audio Hi
Com 1 Mic Audio Hi
Alternate ICS Mode
Com 1 Mic Key
Com 3 Mic Key
ADF Audio Hi
Com 2 SPKR load
Unswitched Audio In #1
Unswitched Audio In #2
Unswitched Audio In #3
PA Mute
Com 2 Mic Key
Com 1 SPKR load
Cabin Spkr Out
Aircraft Power 11-33 VDC
Unswitched Audio In #4
Ext. Marker Audio Hi
Pilot Mic PTT
Cabin Spkr Lo
Aircraft Ground
D201106000060
Bendix/King
KMA 28B Audio Selector Panel and Intercom System
Installation and Operator's Manual
J1 Bottom Connector
1
A
2
B
3
C
4
D
5
E
6
F
7
H
8
J
9
K
10
L
11
M
12
N
13
P
14
R
15
S
16
T
17
U
18
V
19
W
20
X
21
Y
22
Z
Page 2-10
J2 Top Connector
1
Pilot Phone Audio Hi (Left)
A
AUX Control Out
Copilot Phone Audio (Lt)
2
Copilot Phone Audio Lo
B
Copilot Phone Audio (Rt)
3
Expansion Power Out
C
Pass 1 Mic Audio Hi
4
Pass 1 Mic Audio Lo
D
Pass 2 Mic Audio Hi
5
Pass 2 Mic Audio Lo
E
6
Pass 3 Mic Audio Hi
F
Pass 3 Mic Audio Lo
Pass 4 Mic Audio Hi
7
Pass 4 Mic Audio Lo
H
8
Copilot Mic Audio Hi
Duplex Enable
J
Copilot Mic PTT
9
Copilot Mic Audio Lo
K
Swap Switch
10
L
Copilot Cellphone Off Hook
Passenger Headphone Audio (R)
11
M
Pass Cellphone Off Hook
12
Passenger Audio (L)
Passenger Headphone Audio Lo
N
Entertainment #2 in (R)
13
Expansion Input
P
Entertainment #2 In (L)
14
Ent. # 2 Low
R
Entertainment #1 In (R)
15
S
Expansion Output
16
Entertainment #1 Input (L)
T
Ent. #1 Input Lo
17
Ground
U
No Connection
18
PA Activate
Mute 2
V
19
No Connection
W
No Connection
No Connection
20
No Connection
X
No Connection
21
No Connection
Y
No Connection
22
No Connection
Z
Input
Output
June 2011
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