190-01878-02
GMA 342/345 Installation Manual
Rev. 5
Page 3-1
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 Electrical Connections
All electrical connections to the GMA 342/345 are made through two 44-pin D-subminiature connectors
(see
).
defines the electrical characteristics of all input and output signals. Required
connector and associated hardware are supplied in the connector kits. Refer to
GMA 342/345 standard kit part numbers that contain the necessary hardware. See
interconnect wiring diagrams.
CAUTION
Check wiring connections for errors before inserting the GMA 342/345 into the rack.
Incorrect wiring could cause internal component damage.
Table 3-1 Pin Contact Part Numbers
Manufacturer
44 pin D-Subminiature Connectors (P3401, P3402)
18-20 AWG
(Power and Ground Only)
22-28 AWG
Garmin P/N
336-00044-00*
336-00021-00
Military P/N
N/A
M39029/58-360
*Used for 18 AWG wire, is not included in the GMA 342/345 installation kits, and is not needed to install
a GMA 342/345. GPN 336-00021-00 is used for 22 AWG wire and is included in the GMA 342/345
installation kits. Use the 336-00044-00 if installing 18 AWG wire for Power and Ground.