Cabling & Wiring; Cooling Air - Garmin GMA 350 Installation Manual

2.4 Cabling & Wiring
Refer to the interconnect examples in Appendix B for wire gauge guidance.
In some cases, a larger gauge wire such as AWG #16, #18, or #20 may be needed for power
connections. Special thin-wall heat shrink tubing is also provided to insulate the extended barrels
inside the backshell. If using AWG #16 or #18 barrel contacts, ensure that no two contacts are
mounted directly adjacent to each other. This minimizes the risk of contacts touching and
shorting to adjacent pins and to ground.
Ensure that routing of the wiring does not come in contact with sources of heat, RF or EMI
interference. Check that there is ample space for the cabling and mating connectors. Avoid sharp
bends in cabling and routing near aircraft control cables.
2.5

Cooling Air

The GMA 350/350H does not have provisions for attaching cooling air and does not generate an
excessive amount of heat during typical operations, however the thermal characteristics of the installation
should always be assessed. An undesirable thermal condition could be created due to the unit's own
internal power dissipation combined with restricted ventilation, or due to heat generated by adjacent
equipment. Limiting thermal build up, by means of fan or natural convection is always a good practice
and recommended to increase the product life.
Page 2-4
Rev. B
The document reference is online, please check the correspondence between the online documentation and the printed version.
GMA 350/350H Installation Manual
190-01134-11