Note: After installation in the corresponding orientation, screen rotation has to be switched off in the Android
settings of the device, in order to avoid turning of screen from g-forces:
1. Wipe down screen to lift up Android Quick Setup menu
2. Tap the „Autorotate“ icon to toggle Autorotation status as deactivated
8.1. Electrical connections rear
The electrical connections are similar in both models, just the arrangement is a bit different in the 5.7 inch model
where the connector block for USB and LAN horizontally and below the the serial ttyS3..9 connectors.
8.2. 12V DC Power
The power supply is normally is connected to the on board electrical system. A single fuse for a
device is not mandatory for gliders, but is recommended. The wiring can be done with copper strands from 0.5
mm², 1 mm² is recommended. Alternatively, the navi can be connected in parallel to another device that is fused
with at least 1 ampere. The device must be protected because the plug and cable are not designed for higher
currents. The device tolerates voltages in the range of 10-18 volts, a supply of 12 volts is ideal. If the device is
operated without any protection plus an external short circuit, e.g. at ttyS7, internal damage is not expected,
current is limited by a 0.5 Ampere self resettable fuse.
The navi is protected against polarity reversal and is internally protected against transient over-voltages such as
ESD discharges and induction peaks when starting. In general, the avionics should be left switched off when
starting, if it cannot be avoided, e.g. when starting the engine during the flight, you have to rely on the over-
voltage protection.
The 12V DC Power connector is a 5.5 mm standard coaxial DC power connector.
The inner hole is 2.1 mm. One connector is shipped with the device. This connector
features a high holding force so will not disconnect at high g-loads. For power
connection a cable with 1 mm² copper strand is recommended.
Note: To save space in the instrument panel, there is no power switch in the
XCTouchNav. In order to disconnect from power, connect the device either to an
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