Garmin GTX 330 Installation Manual page 24

4.6 Serial Data Electrical Characteristics
Pin Name
RS 232 OUT 1
RS 232 IN 1
RS 232 OUT 2
RS 232 IN 2
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. Refer to Figure 4-2 on page 4-7 for the RS-232 serial data interconnect. Refer to sections
5.2.9. and 5.2.16.
Pin Name
ARINC 429 OUT 1A
ARINC 429 OUT 1B
ARINC 429 IN 1A
ARINC 429 IN 1B
ARINC 429 IN 2A
ARINC 429 IN 2B
ARINC 429 OUT 2A
ARINC 429 OUT 2B
ARINC 429 IN 3A
ARINC 429 IN 3B
ARINC 429 IN 4A
ARINC 429 IN 4B
The ARINC 429 outputs conform to ARINC 429 electrical specifications when loaded with up to 5 standard ARINC
429 receivers. Refer to sections 5.2.8. and 5.2.17.
GTX 330 Installation Manual
190-00207-02
Connector
P3301
P3301
P3301
P3301
Table 4-7. RS 232 Pin Assignments
Connector
P3301
P3301
P3301
P3301
P3301
P3301
P3301
P3301
P3301
P3301
P3301
P3301
Table 4-8. ARINC 429 Pin Assignments
Pin I/O
23 Out
22 In
23 Out
24 In
Pin I/O
37 Out
34 Out
32 In
35 In
33 In
36 In
30 Out
28 Out
26 In
29 In
48 In
49 In
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