Operation Manual

V3 Version 1.0 November 2012
Page 26 of 29
8.4.2 Main port
On main port is connected V3 wiring.
8.4.2.1
1 2 3 4 5 6
Pin numbers
Pin number Description
1 12V power supply
2,3 N.C.
4 (input) Receive to LXNAV V3 RS232
5 (output) Transmit from LXNAV V3 RS232
6 Ground
In the moment, serial interface is used only for firmware update.
8.4.3 External Audio port
Here is connected optional external speaker with standard 3mm mono phono jack.
LXNAV V3 has built in internal speaker.