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DA-681 Series Embedded
Computer
Quick Installation Guide
First Edition, January 2009
1. Overview
The DA-681 computer uses the Intel x86 processor and supports VGA,
6 Ethernet ports, 4 RS-232 and 8 RS-485 serial ports with digital
isolation, CompactFlash, and USB. The DA-681 comes in a standard
19-inch, 1U high form factor, making it an ideal platform for industrial
applications.
With its robust design, the DA-681 is suitable for industrial automation
applications that require standard 19-inch rackmount solutions, such as
power automation, transportation, and oil and gas. Another plus is that
the serial ports come with 2 KV digital isolation protection to guarantee
communication reliability in harsh industrial environments.
2. Model Names and Package Checklist
The DA-681 Series includes the following models:
yDA-681-I-SP-CE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4
RS-232, 8 RS-485, CompactFlash, SATA, USB, Single Power,
WinCE 6.0
yDA-681-I-SP-XPE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4
RS-232, 8 RS-485, CompactFlash, SATA, USB, Single Power,
WinXPe SP2
yDA-681-I-SP-LX:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4
RS-232, 8 RS-485, CompactFlash, SATA, USB, Single Power,
Linux 2.6
yDA-681-I-DP-CE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4
RS-232, 8 RS-485, CompactFlash, SATA, USB, Dual Power,
WinCE 6.0
yDA-681-I-DP-XPE:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4
RS-232, 8 RS-485, CompactFlash, SATA, USB, Dual Power,
WinXPe SP2
yDA-681-I-DP-LX:
x86 Ready-to-Run Rackmount Computer with VGA, 6 Ethernet, 4
RS-232, 8 RS-485, CompactFlash, SATA, USB, Dual Power, Linux
2.6
Each basic system model is shipped with following standard items:
y1 DA-681 Embedded Computer
yQuick Installation Guide
yDocumentation & Software CD
yEthernet Cable: RJ45 to RJ45 cross-over cable, 100 cm
yProduct Warranty Statement
3. Hardware Installation
Front View
Power Fail 2
Power Fail 1
RS-232 RS-485
LED Indicators
LAN
Power
Storage
19-inch
Rackmount Ear
LED Indicators
LED Indicators
Rear View
19-inch
Rackmount Ear
10/100 Mbps Ethernet x 6
RS-232 Serial Port x 4, DB9 RS-485 Serial Port x 8,
Terminal Block
Reset Button
VGA PS/2
USB 2.0
Host x 2
Power Input 1
Power Input 2
Power Switch
Connecting the Power
DA-681 offers both single power and dual power inputs. Please use a
screwdriver to remove the screws. Connect the power cord to the
screws, and then attach the screws to the unit. For single power models,
use Power 1 only; for dual power models, use both Power 1 and Power
2 for power input installation. Refer to the following figure for detailed
information.
When finished, press the Power Switch button on the rear panel to start
the system. It will take about 30 to 60 seconds to boot up, depending on
your operating system.
PWR 1 PWR 2
+L+L
NN
NC
NC
Chasis Ground
Shielded Groud
Power 1 Power 2
+L
N
+L
N
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.
Front Panel LEDs
There are 40 LED indicators on the front panel. Information about each
LED is given in the following table.
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 activeEthernet Port
100 Mbps Off No activity
Yellow 10 Mbps of Ethernet Port is activeEthernet Port
10 Mbps Off No activity
Green Serial port is transmitting dataSerial Port TX
1-12 Off No operation
Yellow Serial port is receiving dataSerial 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
P/N: 1802006810010
