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JW-A740GM-D2 User's Manual
3.7 Serial Port Header (Optional)
Pin
Pin Assignment
Pin
Pin Assignment
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
This JCOM1 header supports a serial port module.
3.8 JHPD Jumper (Optional)
While the JHPD jumper are shorted at pin 1-2, the
motherboard will automatically detect any DVI or HDMI
display device; if the DVI or HDMI device cannot be
detected, please short these jumpers to pin 2-3 to enable
force DVI/HDMI device detection.
Pin No.
Definition
Pin1-2 Auto
Pin2-3 HDMI/DVI EN
JHPD Jumper