Specifications

36 MB-662 User Manual
Serial Port COM2 (CN22)
This port is also readily availiable for quick connect and disconnect
of serial devices like mouse, printer and etc.. Pin definitions are list-
ed as follows:
Serial Port COM2 RS-232 (CN22)
Pin Signal Pin Signal
1 NRLSD1 6 NDSR1
2 NRXD1 7 NRTS1
3 NTXD1 8 NCTS1
4 NDTR1 9 NRI1
5 GND 10 GND
LCD Inverter Backlight Power Connector
(CN25)
CN25 enables power transmission when connected from the main-
board to the LCD panel for backlight lighting. Refer to the pin de-
finitions below:
Pin Signal
1 +5V ENB
2 N/C
3 N/C
4 GND
5 +12V ENB