Garmin GNC 255 User Manual

190-01182-02 GTR 225/GNC 255 TSO Installation Manual
Rev. B Page 1-7
Table 1-2. GTR/GNC Current Specifications
[1] The specified current draw is with the display backlight set to 100% and the fan operating. If
the superflags are connected, their current draw must be added in addition to the specified
current.
[2] The specified current draw does not include the superflags. If connected, their current draw
must be added to the specified current. The superflags will supply up to 320 ma each
regardless of the input voltage.
LRU
14 Volt Current Draw 28 Volt Current Draw
Typical Maximum Typical Maximum
GTR 225
COM Connector 0.59 A 4.2 A 0.28 A 1.9 A
GTR 225A
COM Connector 0.59 A 4.2 A 0.28 A 1.9 A
GTR 225B
COM Connector 0.59 A 5.9 A 0.28 A 2.6 A
GNC 255A
COM Connector 0.59 A 4.2 A 0.28 A 1.9 A
NAV Connector 0.60 A 1.16A 0.30 A 0.58 A
GNC 255B
COM Connector 0.59 A 5.9 A 0.28 A 2.6 A
NAV Connector 0.60 A 1.16A 0.30 A 0.58 A

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