Operation Manual

LX90xx system Version 4.0 February 2014
Page 150 of 151
11.8 Flap sensor
®
The flap encoder is connected to the system via the RS485 bus. It is physically mounted
near the flap mechanism. The flap encoder is very sensitive and accurate and can detect
very small movements.
Please refer to flap sensor manual for details about installation. For configuration on the
main display unit see Chapter 6.1.12.13.
11.9 Secondary Vario Indicators
An unlimited number of secondary vario indicators can be connected to the system bus.
RS485 splitting units should be used to extend the bus capacity. The functionality of
secondary units depends on settings made in setup (see chapter 6.1.12.1.4).
Each unit has two female nine-pin connectors on the back side. Both connectors are 100%
pin to pin compatible and it doesn’t matter which will be used. Any other RS485 bus
operated unit can be any time connected to a free connector port of the vario indicator.