Garmin GNC 255 User Manual

190-01182-02 GTR 225/GNC 255 TSO Installation Manual
Rev. B Page 5-5
5.2 Power, Lighting, And Antennas
This section covers the power input requirements, lighting bus input, and antenna connections.
See Appendix D for interconnect information.
5.2.1 Power
Power inputs P2001-30, P2001-43, and P2001-44 provide power for the COM radio. All three pins must be
connected.
Power inputs P2002-51 and P2002-52 provide power for the NAV radio. Both pins must be connected.
Pin Name Connector Pin I/O
AIRCRAFT POWER P2001 30 In
AIRCRAFT POWER P2001 43 In
AIRCRAFT POWER P2001 44 In
AIRCRAFT POWER P2002 51 In
AIRCRAFT POWER P2002 52 In
AIRCRAFT GROUND P2001 37 In
AIRCRAFT GROUND P2001 38 In
AIRCRAFT GROUND P2001 40 In
AIRCRAFT GROUND P2002 22 In
AIRCRAFT GROUND P2002 49 In
AIRCRAFT GROUND P2002 60 In
AIRCRAFT GROUND P2002 61 In
AIRCRAFT GROUND P2002 62 In

Garmin GNC 255 Specifications

General

Channels	760
Frequency Range	118.000 to 136.975 MHz
Channel Spacing	25 kHz
Input Voltage	11 to 33 VDC
Dimensions	159 x 50 x 193 mm