Garmin GMA 350 Installation Manual

Also see for GMA 350: Pilot's guide Pilot's guide Installation manual

190-01134-11 GMA 350/350c/350H/350Hc Installation ManualRev. J Page 2-52.4 Cabling & WiringRefer to the interconnect examples in Appendix C for wire gauge guidance.In some cases, a larger gauge wire such as AWG #18 or #20 may be needed for power connections. Ifusing AWG #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.Use wire and cable meeting the applicable aviation regulation. When routing wire and cable, observe thefollowing precautions:• Keep wire and cable as short and as direct as possible• Avoid sharp bends• Avoid routing near power sources (e.g. 400 Hz generators, trim motors, etc) or near power forfluorescent lighting2.5 Cooling AirThe GMA 350/350H does not have provisions for attaching cooling air and does not generate an excessiveamount of heat during typical operations, however the thermal characteristics of the installation shouldalways be assessed. An undesirable thermal condition could be created due to the unit's own internal powerdissipation combined with restricted ventilation, or due to heat generated by adjacent equipment. Limitingthermal build up, by means of fan or natural convection is always a good practice and recommended toincrease the product life.