190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 22-1
22 CONNECTOR INSTALLATION INSTRUCTIONS
NOTE
Make sure that backshell connectors are fully tightened. Loose connectors may cause
vibration-related performance issues that are difficult to troubleshoot.
22.1 Cable Connector Installation
Coaxial cables are required for antenna connections for GPS, XM, transponder, comm, VHF Nav, ADS-B,
and video functions.
1. Route the coaxial cable to the unit location. Secure the cable in accordance with good aviation
practices.
2. Trim the coaxial cable to the desired length and install the BNC or TNC connector per the
connector manufacturer’s instructions for cable preparation.
22.2 Jackscrew Backshell Assembly
22.2.1 Shield Block Installation Parts
Table 22-1 and Table 22-2 list the parts needed to install a Shield Block, the item numbers in these tables
correspond to Figure 22-1
. Parts listed in Table 22-1 are supplied in the LRU Connector Kits (see
Table 1-4
). Parts listed in Table 22-2 are to be provided by the installer.
Table 22-1 Parts supplied for a Shield Block Installation (Figure 22-1
)
Item # Description GPN or MIL spec
1 Cast Backshell Housing 125-00175-00
6 Contacts 336-00094-00
12 Clamp 115-01078-04
13 Screw,4-40x.375,PHP,SS/P,w/Nylon 211-60234-10
14 Cover 115-01079-04
15 Screw,4-40x.187,FLHP100,SS/P,w/Nylon 211-63234-06
Table 22-2 Parts not supplied for a Shield Block Installation (Figure 22-1)
Item # Description GPN or MIL spec
2
Multiple Conductor Shielded Cable (2-conductor shown in
Figure 22-1)
Parts used depend on
method chosen
3 Drain Wire Shield Termination (method optional)
Parts used depend on
method chosen
4
Braid, Flat (19-20 AWG equivalent, tinned plated copper strands
36 AWG, Circular Mil Area 1000 -1300)
Parts used depend on
method chosen
5 Floating Shield Termination (method optional)
Parts used depend on
method chosen
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