If the incoming power supply uses the Power/Data
connection, special attention must be given to the
instructions given in the chapter in this handbook
entitled Electrical Power Supply.
The transparent plug must be examined to determine the cable
colour coding so the open cable end may be correctly configured.
On patch cables the neighbouring wires of Pins 1/2, 3/4, 5/6 and
7/8 are usually twisted together. Neighbouring wires are usually
of the same colour, though one of the two colours alternates with
white.
As standard, Pin 5 transmits the most important NMEA-0183
Version 2.0 compatible GPGGA and GPRMC information at a
configured data rate, and Garmin proprietary PGRMZ barometric
height information. Further information is available for third-
user devices (e.g. external display). Do not connect more than
one external application at the same time.
Audio
The audio signal is a standard de-coupled aviation signal of no
more than 1 V. The connector is a standard 3.5 mm jack plug.
Communications Antennas
The primary communications antenna for the FLARM protocol is
preinstalled and locked to the FLARM A socket. Do not try to
remove this antenna as this may cause damage to the device. For
proper operation the included ADS-B antenna must be carefully
and tightly screwed to the SMA socket marked with ADS-B. The
installation has a great influence upon both transmission and the
reception range achieved, and thus requires careful
consideration. The antennas must be vertical to ensure
unimpeded emission especially to the front, and to the sides.
Users are advised not to install the unit within or under the
instrument panel without external antennas. In principle, the
installation may be inverted, provided that the unit is connected
only to an external display and an external GPS antenna.
Horizontal or non-upright antenna presentation is unacceptable.
No electrically conducting surfaces (e.g. metal, carbon fibre)
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