Wiring/Cabling Considerations - Garmin G5 Install Manual & Pilot's Manual

1.2.1.1 POWER SPECIFICATIONS
The G5 is capable of operating at either 14 or 28 VDC. Table 1-3 lists the supply
voltage and current draw information for the G5. Use this information when
determining power supply requirements. All installed electrical appliances must be
considered when determining total power requirements.
The specified current draw listed in Table 1-3 is measured with the display backlight
set to 100%.
Configuration
G5 Only
G5 w/Battery

1.2.2 WIRING/CABLING CONSIDERATIONS

Section 1.5 lists the pin information for the G5 and Section 1.6 contains interconnect
drawings. It is recommended that all LRUs be installed prior to constructing the wiring
harnesses and cables.
Use MIL-W-22759/16 (or other approved wire) AWG #22 or larger wire for all non-
shielded connections unless otherwise specified. Use MIL-C-27500 (or other approved
wire) AWG #22 or larger wire for all shielded connections unless otherwise specified.
The supplied standard pin contacts are compatible with up to AWG #20 wire. In cases
where some installations have more than one LRU sharing a common circuit breaker,
sizing and wire gauge is based on aircraft circuit breaker layout, length of wiring,
current draw on units, and internal unit protection characteristics. Do not attempt to
combine more than one unit on the same circuit breaker.
RG400 or RG142 coaxial cable with 50 Ω nominal impedance and meeting
applicable aviation regulations should be used when installing an optional external
GPS antenna.
190-02072-00 Rev. E
Table 1-3 G5 Power Requirements
14 V
(Maximum) (Typical)
3.5 W, 2.8 W,
0.250 Amp 0.200 Amp
10.7 W, 2.8 W,
0.760 Amp 0.200 Amp
Garmin G5 Install Manual & Pilot's Guide
14 V 28 V
(Maximum)
3.5 W,
0.125 Amp
10.7 W,
0.380 Amp
Unit Installation
28 V
(Typical)
2.8 W,
0.100 Amp
2.8 W,
0.100 Amp
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