GMA 1347D Installation Manual
Page 3-1
190-00303-21
Revision
C
3 INSTALLATION
PROCEDURE
3.1 Unpacking
Unit
Carefully unpack the equipment and make a visual inspection of the unit for evidence of damage incurred
during shipment. If the unit is damaged, notify the carrier and file a claim. To justify a claim, save the
original shipping container and all packing materials. Do not return the unit to Garmin until the carrier
has authorized the claim.
Retain the original shipping containers for storage. If the original containers are not available, a separate
cardboard container should be prepared that is large enough to accommodate sufficient packing material
to prevent movement.
3.2 Antenna
Installation
Install the antenna according to the antenna manufacturer’s instructions.
3.3
Antenna Cable Connectors
The antenna cable requires a BNC plug connector on both ends. Follow BNC connector manufacturer
instructions for assembly of the BNC connector.
3.4 Electrical
Connections
All electrical connections to the GMA 1347D, including the marker beacon antenna and shield ground,
are made through two 78-pin D-subminiature connectors (see Figure 4-1). Tables in Section 4 define the
electrical characteristics of all input and output signals. Required connector and associated hardware are
supplied in the connector kit (P/N 011-00813-01). See figures in Appendix B for interconnect wiring
diagrams.
CAUTION
Check wiring connections for errors before inserting the GMA 1347D into the rack.
Incorrect wiring could cause internal component damage.
Table 3-1. Pin Contact Part Numbers
78 pin D-Subminiature Connectors (P3471, 3472)
Manufacturer
16 AWG
(Power Only)
18-20 AWG
(Power Only)
22-28 AWG
Garmin P/N
336-00044-01
336-00044-00
336-00021-00
Military P/N
N/A NA
M39029/58-360
AMP N/A
NA
204370-2
Positronic N/A NA
MC8522D
ITT Cannon
N/A
NA
030-2042-000
