9 connectors, 1 rear panel connectors, Connectors -17 2.9.1 – AAEON EMB-H81A User Manual
Page 25: Rear panel connectors -17
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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 (422RXD+)
3
TXD (422TXD+/485DATA+) 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.