Installation
560-1057-00 Rev A
GDL 90 Capstone Upgrade Instructions
2-4
2.5 E
LECTRICAL
C
ONNECTIONS
The GDL 90 Capstone Upgrade Installation Kit includes the adapter cable and three coax connectors.
The connector layouts are shown in Figure 2-6. The D-sub connectors use the supplied crimp contacts as
specified in Table 2-2. Make the crimp connections with the crimp tool specified
.
Table 2-2 - Interface Connectors
Figure 2-6
Connector Crimp
Contact
Ref. Description
P/N
Description
P/N
Description
P1
Main System
162-1575 15 Pin D-Sub Receptacle
245-0027 20-24 AWG socket contact
P2
I/O
162-1577 37 Pin D-Sub Receptacle
245-0027 20-24 AWG socket contact
n/a
Maint. Port
162-1574 9 Pin D-Sub Receptacle
245-0027 20-24 AWG socket contact
P3
GPS antenna
162-0043 Coax connector, right angle
N/A
N/A
P4
UAT ant (top)
162-0043 Coax connector, right angle
N/A
N/A
P5
UAT ant (bot)
162-0043 Coax connector, right angle
N/A
N/A
The following table shows the specifications for the crimp contacts. Alternate crimp contact part
numbers may be used that are equivalent to those specified in the table below.
Table 2-3 - Crimp Contact Specifications
Garmin AT Part Number
245-0027
Description
20-24 AWG crimp socket contact
Color bands
Orange/Blue/Gray
ITT/Cannon P/N
031-1007-042
Military number
M39029/63-368
2.5.1 C
ABLING AND
W
IRING
2.5.1.1 Adapter
Cable
An adapter cable is provided with the GDL 90 Upgrade Installation Kit. Install the adapter cable as
follows:
•
Mount the DB15 and DB37 connectors of the cable to the mounting tray backplate
•
Connect the DB37 connector of the adapter cable to the DB37 connector of the existing wiring.
Fasten with 2 screws (provided.)
•
Attach cable ground lug to one of the holes on the side rail of backplate with a #4 screw
2.5.1.2
APM and Maintenance Connector
Connect the micro APM to the DB15 connector of the adapter cable using crimp socket contacts
(provided). The APM may be fastened to the backplate of the tray close to the 37-pin connector using
cable ties through holes on the backplate. Refer to Figure 2-3 for more details. APM wiring must be 4
inches maximum length.
Connect the DB9 Maintenance PC connector to the DB15 connector of the adapter cable using crimp
socket contacts (provided) and 3-conductor wire. The Maintenance DB9 connector should be secured
