2-17
Chapter 2: Motherboard information
2.9 Connectors
2.9.1
Rear panel connectors
2
3
4
7
4
8
9
2
5
6
1
10
1.
PS/2 keyboard/mouse port (purple/green).
This port is for a PS/2 keyboard
or mouse.
2.
Serial ports (COM1 / COM2).
These ports connect a modem, or other
devices that conform with serial specification.
3.
Video Graphics Adapter (VGA) port.
This 15-pin port is for a VGA monitor
or other VGA-compatible devices.
NOTE:
If you use VGA port only, please disable LVDS function. Refer to
section 3.4.1
System Agent (SA) Configuration
for details.
4.
LAN1 (RJ-45) port.
These ports allow Gigabit connection to a Local Area
Network (LAN) through a network hub. Refer to the table below for the LAN1/
LAN2 ports LED indications.
Pin
Signal
Pin
Signal
1
DCD (422TXD-/485DATA-)
2
RXD ()
3
TXD (/) 4
DTR (422RXD-)
5
GND
6
DSR
7
RTS
8
CTS
9
RI/+12V/+5V
10
N.C.
NOTES:
• The COM module is purchased separately.
• Only COM1 can support RS-232 / RS-422 / RS-485.
Содержание EMB-H81A
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