Certification - Garmin GMA 347 Installation Manual

1.3.3 Power Requirements
Characteristic
Input Voltage Range
Power Input
1.4

Certification

The conditions and tests required for TSO approval of this article are minimum performance standards. It
is the responsibility of those installing this article either on or within a specific type or class of aircraft to
determine that the aircraft installation conditions are within the TSO standards. TSO articles must have
separate approval for installation in an aircraft. The article may be installed only if performed under 14
CFR part 43 or the applicable airworthiness requirements.
1.4.1 TSO/ETSO Compliance
The GMA 347 is FAA TSO approved to TSO-C50c, TSO-C35d Class A, ETSO-C50c (pending) and
ETSO-2C35d (pending).
For a list of ETSO deviations see the GMA 347 Declaration of Design and Performance, Garmin part
number 190-00325-03.
1.4.2 TSO Deviations
The following table provides a list of applicable TSO deviations for the GMA 347.
TSO
TSO-C35d Garmin was granted a deviation from TSO-C35d to use RTCA DO-160D instead of RTCA
DO-138 as the standard for Environmental Conditions and Test Procedures for Airborne
Equipment.
Garmin was granted a deviation from TSO-C35d to use FAR §21.607(d) instead of FAR
§37.7 as the general rules governing holders of the TSO authorizations.
TSO-C50d Garmin was granted a deviation from TSO-C50d to use RTCA DO-178B instead of RTCA
DO-178A as the standard for Software Considerations in Airborne Systems and
Equipment Certification.
Garmin was granted a deviation from TSO-C50d to use RTCA DO-160D instead of RTCA
DO-160A as the standard for Environmental Conditions and Test Procedures for Airborne
Equipment.
GMA 347 Installation Manual
190-00325-01
Specification
11.0 to 33.0 Vdc. See the Environmental Qualification
Form in Appendix A for details on surge ratings and
minimum/maximum operating voltages.
Operating Current:
3.75 amps max at 13.75 V
1.75 amps max at 27.5 V
Deviation
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Revision A