Garmin 155XL Maintenance Manual - page 23

3-8

                          190-00067-25 Rev D

3.6

EXTERNAL CONNECTORS

The GPS 155XL provides interfaces to various General Aviation Instruments via a 37 pin connector, J1, and a 26

pin connector, J2.  Tables 3-3 and 3-4 provide pinout information to aid in troubleshooting.

Table 3-3. J1 Pinout Information

J1 PIN

NUMBER

PIN DEFINITION

1

D-BAR  LEFT  +

2

TO  +

3

FLAG +

4

FLAG -, D-BAR RIGHT +, FROM +, STATOR E, STATOR G

5

RESERVED

6

RESERVED

7

OBI CLOCK

8

OBI  DATA

9

APPROACH ARM LOW

10

NAV SUPER FLAG

11

RESERVED

12

ARRIVAL ANNUN

13

APPROACH ACTV ANNUN

14

ROTOR C

15

ARINC 429 OUT B

16

ARINC 429 OUT A

17

RS232 IN 1

18

RS232 IN 2

19

RS232 OUT 2

20

MESSAGE ANNUN

21

AIRCRAFT POWER (14-28 VDC)

22

GROUND

23

OBI SYNC

24

RS232 OUT 1

25

AIRCRAFT POWER (14-28 VDC)

26

GROUND

27

RESERVED

28

APPROACH ARM ANNUN

29

CHARGE ENABLE

30

BATTERY + (POSITIVE)

31

RESERVED

32

ARINC 429 IN A

33

ARINC 429 IN B

34

BATTERY - (NEGATIVE)

35

STATOR D

36

RESERVED

37

STATOR F