Triadis Engineering Glide Computer and Navigation System Owner's Manual page 44

Connector X5: Secondary data port
Description : Secondary data port
Type : RJ45, IGC Layout RX/TX Crossover
1,2 : GND, external device GND
3 : RS232 TX, Data sent from Altair
4 : RS232 RX, Data received by Altair
5,6 : Not connected
7,8 : 12V, External device supply, DO NOT feed in power to this
Pin!
Pins numbered from right to left when viewing socket pins down.
Note that according to the IGC specifications, the connector is
numbered the other way around (e.g. 7,8 GND).
Type : RJ45, IGC layout
1,2 : GND, External device GND
3 : RS232 RX, Data received by Altair
4 : RS232 TX, Data sent from Altair
5,6 : Not connected
7,8 : 12V, External device supply, DO NOT feed in power to this
Pin!
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