190-01878-02
GMA 342/345 Installation Manual
Rev. 5
Page 3-2
NOTE
1. Non-Garmin part numbers shown are not maintained by Garmin and consequently are subject to
change without notice.
2. Extracting #18 and #20 contacts requires that the expanded wire barrel be cut off from the contact.
It may also be necessary to push the pin out from the face of the connector when using an extractor
due to the absence of the wire. A new contact must be used when reassembling the connector.
3.3 Antenna Installation
Install the antenna according to the antenna manufacturer’s instructions.
3.3.1 Antenna Cable Connectors
The antenna cable requires a BNC plug connector. Follow BNC connector manufacturer instructions for
assembly of the BNC connector.
3.4 Shield Block Backshell Installation Instructions
3.4.1 Backshell Installation Parts
The GMA 342/345 connector kit includes two Garmin backshell assemblies. Garmin’s backshell
connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell
housing using the Shield Block. To assemble the backshell connectors and grounding system, refer to
instructions provided in the Shield Block Installation Instructions (190-00313-09).
Table 3-2 Recommended Crimp Tools
Manufacturer
Hand
Crimping
Tool
18-20 AWG
22-28 AWG
Positioner
Insertion/
Extraction
Tool (Note 2)
Positioner
Insertion/
Extraction
Tool
Military P/N
M22520/2-01
N/A
M81969/1-04
M22520/2-09
M81969/1-04
Positronic
9507
9502-11
M81969/1-04
9502-3
M81969/1-04
AMP
601966-1
N/A
91067-1
601966-6
91067-1
Daniels
AFM8
K774
M81969/1-04
K42
M81969/1-04
Astro
615717
N/A
M81969/1-04
615725
M81969/1-04