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8
Power Button with LED (Green)
Press to power on or power off the system.
Reset Button
Press to reset the system.
HDD LED (Red)
Indicates the status of disk drives.
Status LED (Orange)
Indicates system status as below.
SATA 1 /SATA 2
Install SATA drives into the system.
Remote Power-on/Power-off Switch Connector
Connects distant power on/off switch.
USB 3.0 Ports
Connect to USB 3.0 as well as devices based on previous USB versions.
COM and DIO Ports
All COM ports can be selected among RS232, RS422 and RS485.
COM1~COM2 and COM4~COM5 can be selected between RS232 and RS232 with power via
jumper settings; COM3 and COM6 are normal RS232 ports.
The DIO port provides 8-bit digital input/output.
DVI-I (DVI-D signal) / HDMI / VGA Connector
Connects the DVI-I / HDMI / VGA connector of an LCD monitor.
Line-out and Microphone Ports
Connect audio devices such as microphones and speakers.
Gigabit LAN Ports
Connect the system to a local area network.
DC-in
DC 9~36V power input via a terminal block connector.
PCIe Expansion Slots
Provide PCIe and PCI expansion connectivity via a riser card.
Getting to Know the EC531/EC532-SD
Chapter 1
HDD LED
HDD State
Disk access
activity
Disk drives present or not present
LED Behavior
Blink
Off
Front I/O Ports
Front View
Status LED
Suspend Mode
S0
S1
S3
S4, S5
LED Behavior
Always ON
Quick Blink
(cycle 1 sec)
Slow Blink
(cycle >1 sec)
Off
Rear View
HDMI
(2)
DC-in
DVI-I
(DVI-D signal)
USB 3.0 LAN 1 LAN 2
USB 3.0
SATA 2 SATA 1
VGA
COM 1
COM 2
COM 3
Remote
Power on/off
Line-out
Microphone
Expansion slots
DIO COM4 COM5 COM6
Status LED (Orange)
HDD LED (Red)
Power Button
(1)
with LED (Green)
Reset Button
Notes:
1. Please gently press the power button to avoid possible damages.
2. The HDMI is a DP/HDMI combo port but can only transmit HDMI signals (unless wired as a DP
port by request). Please plug in an HDMI cable with the right orientation and alignment to avoid
damage to the connector. You should feel resistance (due to a pin on the right) if the cable is not
inserted correctly.
Align this edge with the
left side of the connector
Angled-corner
(up)
Angled-corner
Aligning side
(left)
pin
