User Manual

R680EI-IM-A
2-22
NOTE: The serial port cables are purchased separately.
14. Serial Port headers (10-1 pin COM2, COM3, COM4, COM5)
These headers are for serial (COM) ports. Connect the serial port cables to
these headers, then install the module to a slot opening at the back of the
system chassis.
R680EI-IM-A
Ring
RTS#
GND
TXD
DCD#
CTS#
DSR#
DTR#
RXD
COM3
COM4
COM5
COM2
A
B
C
D
PIN 1
PIN 1
DCD#
TXD
GND
RTS#
Ring
RXD
DTR#
DSR#
CTS#
A B C
D
Connector type
BOX header 2x5p, K10, 2.0mm pitch
15. Flat panel display brightness connector (5-pin LCD_BLKT_PANEL)
This connector is for the LVDS/eDP panel backlight voltage selection.
R680EI-IM-A
+12V
GND
LCD_ENABKLT_CN
H_LCD_BL_PWM_SW
+5V
PIN1
+12V
GND
LCD_ENABKLT_CN
NC
+5V
PIN1
LCD_BLKT_PANEL
LVDS Signal eDP Signal
Connector type
WAFER 6p, 2.0mm pitch