Garmin GNC 420A Installation Manual page 49

4.6.2 Serial Data Electrical Characteristics
4.6.2.1 RS-232
Pin Name
GPS RS 232 OUT 1
GPS RS 232 IN 1
GPS RS 232 OUT 2
GPS RS 232 IN 2
GPS RS 232 OUT 3
GPS RS 232 IN 3
GPS RS 232 OUT 4
GPS RS 232 IN 4
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
GPS ARINC 429 OUT A
GPS ARINC 429 OUT B
GPS ARINC 429 IN 1 A
GPS ARINC 429 IN 1 B
GPS ARINC 429 IN 2 A
GPS ARINC 429 IN 2 B
VOR/ILS ARINC 429 OUT A
VOR/ILS ARINC 429 OUT B
VOR/ILS ARINC 429 IN A
VOR/ILS ARINC 429 IN B
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 5.2.1 for the main (GPS) ARINC 429 configuration. Refer to sections 5.2.15, 5.2.16, and
5.2.1.7 for the Stormscope configuration. Refer to section 5.2.18 for the Skywatch configuration. Refer to
sections 5.2.18 and 5.2.19 for the TCAD configuration. If the GDL 49 satellite data link transceiver has
been installed, refer to the GDL 49 Installation Manual (190-00231-00) for Configuration Mode
Operations.
4.6.4 Serial Data Calibration and Checkout
Refer to section 5.3.2 for the serial data checkout. Refer to sections 5.2.15, 5.2.16, and 5.2.17 for the
Stormscope checkout. Refer to section 5.2.18 for the Skywatch checkout. Refer to sections 5.2.18 and
5.2.19 for the TCAD checkout.
4.6.5 Serial Data Interconnect
Refer to Figure 4-11 on page 4-41 for the RS-232 serial data interconnect. Refer to Figure 4-12 on page 4-
43 for the ARINC 429 Bendix/King EFS 40/50 interconnect. Refer to Figures 4-13, 4-14 and 4-15 starting
on page 4-45 for the ARINC 429 Sandel EHSI interconnects. Refer to Figure 4-16 on page 4-51 for the
ARINC 429 air data/IRU/AHRS interconnect. Refer to Figure 4-17 on page 4-53 for the ARINC 429
flight control interconnect. Refer to Figure 4-18 on page 4-55 for the Traffic Advisory System
Interconnect. Refer to Figure 4-19 on page 4-57 for the Weather and Terrain Interconnect. Refer to Figure
4-19 on page 4-57 for RS-232 serial data interconnects with the GARMIN GDL 49 Satellite Data Link
Transceiver.
400 SERIES INSTALLATION MANUAL
P/N 190-00140-02
Connector Pin
P4001 56
P4001 57
P4001 58
P4001 59
P4001 41
P4001 42
P4001 54
P4001 55
Connector Pin
P4001 46
P4001 47
P4001 48
P4001 49
P4001 50
P4001 51
P4006 24
P4006 23
P4006 36
P4006 35
I/O
Out
In
Out
In
Out
In
Out
In
I/O
Out
Out
In
In
In
In
Out
Out
In
In
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