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2.3.5.3
Primary Power and Circuit Breaker Requirements
The KTR 2280A MMDR receives primary power from the aircraft power circuit breakers. Power connections,
wire sizes, and circuit breaker requirements can be found in the system installation manual and/or EB for a
specific installation.
2.3.5.4
Connectors
Figure 2-19 (Sheet 1 of 1) KTR 2280A Mating Connector
Pin
Pin Name
No.
1
O
A429 Out1 A
2
O
ADF Loop Enable OUT
3
I
Test
4
I
Unit Pos PGM 1*
5
I
Unit Pos PGM 2*
6
I
COM TX Interlock* IN
7
I
COM MIC Key* IN
8
O
RS-422 RX A
9
O
RS-422 RX B
10
I
RS-422 TX A
11
I
RS-422 TX B
12
I
COM MIC GND
13
I
A429 IN3 A
14
O
ADF Audio LO OUT
15
O
ADF Audio HI OUT
16
O
A429 Out1 B
17
O
ADF MOD 0 OUT
18
O
A429 Out2 A
© Honeywell International Inc. Do not copy without express permission of Honeywell.
SYSTEM INSTALLATION MANUAL
KTR 2280A
Front View
Table 2-2 J1 Pin Functions
Description
Page 2-19
15 May 2017
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