Connectors; Rear Panel Connectors - Aaeon EMB-H81A Manual

2.9

Connectors

2.9.1

Rear panel connectors

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.
Pin Signal
1 DCD (422TXD-/485DATA-)
3 TXD (422TXD+/485DATA+)
5 GND
7 RTS
9 RI/+12V/+5V
NOTES:
• The COM module is purchased separately.
• Only COM1 can support RS-232 / RS-422 / RS-485.
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.
LAN1 (RJ-45) port. These ports allow Gigabit connection to a Local Area
4.
Network (LAN) through a network hub. Refer to the table below for the LAN1/
LAN2 ports LED indications.
Chapter 2: Motherboard information
2
2 9
3 4
8
Pin Signal
2 RXD (422RXD+)
4 DTR (422RXD-)
6 DSR
8 CTS
10 N.C.
4 5
7 6
2-17