
DA-681 Series Hardware User’s Manual Hardware Installation
When finished, press the Power Switch button to start the system. It will take about 30 to 60
seconds for your operating system to boot up.
Power Switch
Reset Button
Pressing the Reset button initiates a hardware warm reboot. The button plays the same role as a
desktop PC’s reset button. After pressing the reset button, the system will reboot automatically.
During normal use, you should NOT use the Reset Button. You should only use this button if the
software is not working properly. To protect the integrity of data being transmitted or processed,
you should always reset the system from the operating system with the software reboot function.
Reset Button
Front Panel LED
There are 40 LED indicators on the front panel. Information about each LED is given in the
following table.
Power Fail 2
Power Fail 1
RS-232
RS-485
LED Indicators
LAN
Power
Storage
LED Indicators
LED Indicators
LED Name Color LED Description
Green Power is on
Power
Off No power input or power error
Yellow /
Blinking
Data is being written to or to read from the storage unit
Storage
Off Storage unit is idle
Green 100 Mbps of Ethernet Port is active Ethernet Port
100 Mbps
Off No activity
Yellow 10 Mbps of Ethernet Port is active Ethernet Port
10 Mbps
Off No activity
Green Serial port is transmitting data
Serial Port TX 1-12
Off No operation
Yellow Serial port is receiving data
Serial Port RX 1-12
Off No operation
Red Power 1 fails (For dual power models only)
Power Fail 1
Off Power works well
Red Power 2 fails (For dual power models only)
Power Fail 2
OFF Power works well
2-12
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