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