Installation
and Configuration
Version 1.41, June 2017
Page 54 of 69
5.2.2.6
Flap Sensor
The flap sensor also communicates with the main system via the RS485 bus. Installation of
the flap sensor may be complicated for some gliders. Please contact the glider
manufacturer for more details.
5.2.2.7
485 to 232 Bridge
The LXNAV RS485 to RS232 Bridge (Bridge) is connected to the RS485 bus via a RS485
splitter DB9 connector. The RS485 splitter is not part of the package. If you don’t have a
spare port on the RS485 splitter you must order it including the radio bridge cable.
5.2.2.7.1
Installation of 485 to 232 Bridge
The RS485 splitter requires a small modification before the Bridge can be fitted. It is
necessary to remove two HEX screws where Bridge will be connected and replace by two
spring locks that are in the package.
Then fixing the Bridge to RS485 splitter will be very easy.
On the other side of the Bridge is a RJ12 connector with standard IGC/FLARM pinout.
1 2 3 4 5 6
Pin numbers
Pin Number Description
1
(output) 12V DC, to supply GPS
2
3.3V DC (max 100mA)
3
GND
4
Flarm Data Out