I/O Panel - ASROCK IMB-154B User Manual

1.4 I/O Panel

1
13 12
1 PS/2 Mouse Port
2 COM Port 1 (COM1)*
3 COM Port 3 (COM3)*
4 LAN RJ-45 Port**
5 LAN RJ-45 Port**
6 Line out (Green)
7 Microphone (Pink)
* This motherboard supports RS232/422/485 on COM1~3 ports. Please refer to below table for
the pin definition. In addition, COM1~3 ports (RS232/422/485) can be adjusted in BIOS setup
utility > Advanced Screen > Super IO Configuration. You may refer to page 29 for details.
PIN
1
2
3
4
5
6
7
8
COM1: +5V/+12V/+5VSB
9
COM2, 3: +5V/+12V
** There are two LED next to the LAN port. Please refer to the table below for the LAN port LED
indications.
LAN Port LED Indications
Activity/Link LED
Status Description
Off No Link
Blinking Data Activity
On Link
3
2
11 10
COM1~3 Port Pin Definition
RS232
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
COM1: +5V/+12V/+5VSB
COM2, 3: +5V/+12V
SPEED LED
Status Description
Off 10Mbps connection
Orange 100Mbps connection
Green 1Gbps connection
10
4 5
9
8 USB 3.0 Ports (USB3_2_3)
9 USB 3.0 Ports (USB3_0_1)
10 VGA Port (VGA1)
11 COM Port 2 (COM2)*
12 PS/2 Keyboard Port
13 HDMI Port (HDMI1)
RS422
TX-
RX+
TX+
RX-
GND
N/A
N/A
N/A
COM1: +5V/+12V/+5VSB
COM2, 3: +5V/+12V
ACT/LINK
6
7
8
RS485
RTX-
N/A
RTX+
N/A
GND
N/A
N/A
N/A
SPEED
LED LED
LAN Port