Garmin GNC 420AW Installation Manual - page 77
400W Series Installation Manual
Page 4-15
190-00356-02
Rev. G
4.6.2
Serial Data Electrical Characteristics
4.6.2.1 RS-232
Pin Name
Connector
Pin
I/O
GPS RS-232 OUT 1
P4001
56
Out
GPS RS-232 IN 1
P4001
57
In
GPS RS-232 OUT 2
P4001
58
Out
GPS RS-232 IN 2
P4001
59
In
GPS RS-232 OUT 3
P4001
41
Out
GPS RS-232 IN 3
P4001
42
In
GPS RS-232 OUT 4
P4001
54
Out
GPS RS-232 IN 4
P4001
55
In
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.
4.6.2.2 ARINC
429
Pin Name
Connector
Pin
I/O
GPS ARINC 429 OUT A
P4001
46
Out
GPS ARINC 429 OUT B
P4001
47
Out
GPS ARINC 429 IN 1 A
P4001
48
In
GPS ARINC 429 IN 1 B
P4001
49
In
GPS ARINC 429 IN 2 A
P4001
50
In
GPS ARINC 429 IN 2 B
P4001
51
In
VOR/ILS ARINC 429 OUT A
P4006
24
Out
VOR/ILS ARINC 429 OUT B
P4006
23
Out
VOR/ILS ARINC 429 IN A
P4006
36
In
VOR/ILS ARINC 429 IN B
P4006
35
In
The GPS and VOR/ILS ARINC 429 outputs conform to ARINC 429 electrical specifications when loaded
with up to 5 standard ARINC 429 receivers.
4.6.3
Serial Data Configuration
Refer to Section 5.3 for serial data configuration information.
4.6.4
Serial Data Calibration and Checkout
Refer to Section 5.3 and Section 5.5.6 for the serial data checkout information.
4.6.5
Serial Data Interconnects
Refer to for Appendix H for serial data interconnect information.