190-01878-02
GMA 342/345 Installation Manual
Rev. 5
Page 2-6
2.4.2.4 Marker Beacon Antenna Cable Installation
This section provides guidance for terminating the coaxial cable into the D-Sub connector. See the system
interconnect section for pin assignments.
NOTE
Use coaxial cable meeting the applicable aviation regulation for the marker beacon
antenna. Route the cable to the D-Sub as described in
.
When terminating the coaxial cable into the D-Sub observe the following guidance (refer to Figure 2-1):
• Keep the distance from the end of the exposed shield to D-Sub as short as possible.
• Ensure the distance from the beginning of the exposed shield to D-Sub is no more than
1.5 inches long.
• Terminate the center conductor by directly connecting it to the D-sub through a crimp pin
without a pigtail.
Figure 2-1 below represents a suggested method for terminating the marker beacon coaxial cable using
M17/128-RG400 terminated into a high density D-Sub connector. Refer to Table 2-8 for Crimp Tool, Pin,
and Crimp Tool Insert part numbers.
Figure 2-1 GMA 342/345 Marker Beacon Coaxial Cable D-Sub Termination
Table 2-8 Pin and Crimp Tool Part Numbers
CRIMP TOOL
PIN
CRIMP TOOL INSERT
DANIELS MANUFACTUING CORP
DMC M22520/2-01 GAGE
AFM8 CRIMPING TOOL
Garmin Part Number
336-00021-00
K42
Garmin Part Number
336-00044-00
K774
