--LG ELECTRONICS--

LG B1200 Pinout

Keyboard up

1,5 - GND 

11 - RX ( MAX3232 ) 

12 - TX ( MAX3232 ) 

LG-500 Pinout
Keyboard up
 
Use MAX3232

1 - GND
11 - RX
12 - TX

LG200 Pinout

Keyboard up
 
Use MAX3232

2,3 - 1mOm
2,16 - GND
4 - TX
5 - RX