Serial Data Electrical Characteristics; Arinc 429 Input/Output; Rs-232 Input/Output - Garmin G3X Installation Manual

15.8.4 Serial Data Electrical Characteristics

15.8.4.1 ARINC 429 Input/Output

The ARINC 429 outputs conform to ARINC 429 electrical specifications when loaded with up to 5
standard ARINC 429 receivers.
Pin Connector
20
21
22
23
25
26
27
28
30
31
32
33

15.8.4.2 RS-232 Input/Output

The RS-232 outputs conform to EIA Standard RS-232C with an output voltage swing of at least ±5 V
when driving a standard RS-232 load. RS-232 OUT 2 is not currently active. RS-232 IN/OUT 3 is used
for connection to a transponder
default).
Pin Connector
15
16
17
18
19
G3X Installation Manual - LRU Pinouts
Page 15-40
J731 ARINC 429 OUT 1A
J731 ARINC 429 OUT 1B
J731 ARINC 429 OUT 2A
J731 ARINC 429 OUT 2B
J731 ARINC 429 IN 1A
J731 ARINC 429 IN 1B
J731 ARINC 429 IN 2A
J731 ARINC 429 IN 2B
J731 ARINC 429 IN 3A
J731 ARINC 429 IN 3B
J731 ARINC 429 IN 4A
J731 ARINC 429 IN 4B
(Figure D-2.2 &
J731 MAGNETOMETER RS-232 OUT
J731 RS-232 IN 2 (RESERVED)
J731 RS-232 OUT 2 (RESERVED)
J731 RS-232 IN 3 (TRANSPONDER)
J731 RS-232 OUT 3 (TRANSPONDER)
Pin Name
Figure D-2.3), and is not configurable (always on by
Pin Name
I/O
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
IN
I/O
OUT
IN
OUT
IN
OUT
190-01115-01
Rev. L