Moxa Technologies DA-680 Series User manual

P/N: 1802006800002
*1802006800002*
DA-680 Series
Quick Installation Guide
Version 1.1, August 2023
Technical Support Contact Information
www.moxa.com/support

2023 Moxa Inc. All rights reserved.

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Overview
The DA-680 computer is built around an Intel® Core™ i3 processor and
comes with 8 Gigabit Ethernet ports, 1 VGA port, 8/16 isolated RS-485
serial ports, and 5 USB ports. Additionally, one 2.5” HDD/SSD slot and
one mSATA slot are included to enable storage expansion for industrial
applications that require large storage space for edge data acquisition.
With IEC 61850-3, IEEE 1613, and IEC 60255 compliance, the DA-680
is sure to deliver stable and reliable system operation for power
applications.
Package Checklist
Before installing the DA-680, verify that the package contains the
following items:
•DA-680 rackmount computer
•Rack-mounting kit
•Quick installation guide (printed)
•Warranty card
NOTE
Notify your Moxa sales representative if any of the above items
are missing or damaged.
Panel Layout
The panel layouts of the DA-680 are shown in the following
illustrations:
Front View
Rear View

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LED Indicators
The following table describes the function of the LED indicators located
on the front panel of the DA-680:
LED Name
Status
Description
Power
Green
Power is on
Off No power input or power error exists
Storage
Yellow Blinking: Data is being written to or read
from the storage unit
Off Storage unit is idle
Power 1
Off
Power is being properly supplied
Red
Power 1 has failed (for dual power models
only)
Power 2
Off
Power is being properly supplied
Red
Power 1 has failed (for dual power models
only)
Gigabit LAN
LEDs 1 to 8
Green
100 Mbps Ethernet mode
Yellow
1000 Mbps (Gigabit) Ethernet mode
Off
No operation, or in 10Mbps Ethernet mode
Serial Port P1
to P12 (TX)
Green
Serial port is transmitting data
Off
No operation
Serial Port P1
to P12 (RX)
Yellow
Serial data is being received
Off
No operation
Programmable
LEDs 1 to 6
Green
User-defined function
Installing the DA-680
The DA-680 comes with a rack-mounting kit. Following these guidelines
when installing the computer.
1. Elevated Operating Ambient: If installed in a closed or multi-
unit rack assembly, the operating ambient temperature of the rack
environment may be greater than room ambient. Therefore,
consideration should be given to installing the equipment in an
environment compatible with the maximum ambient temperature
(Tma) specified by the manufacturer.
2. Reduced Air Flow: Installation of the equipment in a rack should
be such that the amount of air flow required for safe operation of
the equipment is not compromised.
3. Mechanical Loading: Mounting of the equipment in the rack
should be such that a hazardous condition is not achieved due to
uneven mechanical loading.
4. Circuit Overloading: Consideration should be given to the
connection of the equipment to the supply circuit and the effect
that overloading of the circuits might have on overcurrent
protection and supply wiring. Appropriate consideration of
equipment nameplate ratings should be used when addressing this
concern.
5. Reliable Earthing: Reliable earthing of rack-mounted equipment
should be maintained. Particular attention should be given to the
power supply to connections other than direct connections to the
branch circuit (e.g., use of power strips).

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Connecting the Power
The DA-680 provides single power (SP model) and dual power (DPP
model) inputs. Use a screwdriver to remove the terminal clamp screws.
Connect the power cord to the screws, and then fasten the screws to
the unit. Refer to the following figure for detailed information.
NOTE
1. Disconnect all power supply cords before performing
maintenance on the product.
2. Connect the connector to the chassis ground source
. Use a
Yellow/Green wire with minimum 18 AWG.
ATTENTION
This product is intended to be
mounted on to a well-grounded
mounting surface such as a metal panel.
ATTENTION
Th
ere is a risk of explosion if the internal clock’s battery is
replaced with an incompatible battery.

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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.
ATTENTION
1. Disconnect all power sources before you connect the
power wires.
2. This product may create a shock hazard. Be careful while
connecting the power wires.
3. Equipment is intended for installation in restricted access
area.

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ATTENTION
IEC-60417-6172 (2012-09)
1. This product may create a shock hazard. Disconnect all
power sources before connecting wires or servicing the
product.
2. This equipment is intended for installation in a restricted
access area.
Reset Button
Pressing the Reset button initiates a 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.
NOTE
All unsaved data will be lost when you push the Reset button.
Connecting to a Display
The DA-680 comes with a D-Sub 15-pin female connector to connect to
the VGA monitor. Be sure to remove the power before you connect or
disconnect the monitor cable.
USB Ports
The DA-680 comes with 2 USB 2.0 ports on the front panel and 3 USB
3.0 ports on the rear panel. The USB ports can be used to connect
peripherals, such as flash drives, for expanding the system’s storage
capacity.
Serial Ports
The DA-680 comes with 8/16 RS-485 serial ports on the rear panel with
Terminal Block connector. Refer to the following table for the pin
assignments:
Pin
RS-485 RS-485
(4-
wire)
(2-
wire)
1
TxDA(+)
–
2 TxDB(-) –
3 RxDB(+) Data(+)
4 RxDA(-) Data(-)
5 GND GND

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Ethernet Ports
The DA-680 has 8 10/100/1000 Mbps RJ45 Ethernet ports on the rear
panel. Refer to the following table for the pin assignments:
Digital Outputs
The DA-680 comes with two digital outputs in a terminal block. Refer to
the following figures for the pin definitions and wiring methods.
Pin 10/100 Mbps 1000 Mbps
1 Tx+ TRD(0)+
2 Tx- TRD(0)-
3 Rx+ TRD(1)+
4 – TRD(2)+
5 – TRD(2)-
6 Rx- TRD(1)-
7 – TRD(3)+
8 – TRD(3)-
Pin Signal
1
DO0
2
DO1
3
GND

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IRIG-B
The DA-680 has one physical interface with INPUT signal capability.
Refer to the following table for information on the IRIG-B interface.
IRIG-B IN Description
Input Signal Differential signal
Input Signal Level
D+ - D- > 0.2V, RXD is High,
D+ - D- < -0.2V, RXD is Low
Accuracy (Time
Synchronization)
±1 μs
Accuracy (Free Running) ±500 ms @ 24 hr
Time-code Formats According to IRIG STANDARD 200-04
and IEEE1314
Relay Output
The DA-680 provides a relay output located on the rear panel of the
computer and a setting on the power terminal block. Refer to the figure
below for a detailed pin definition of the relay output connectors. The
default setting for the relay is NO. To change the relay setting to NC,
you will need to open the cover and change the setting of the jumper
on the PCB board.

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ATTENTION
The r
elay output is only suitable for connecting to a circuit in
compliance with PS2
or LPS according to IEC 62368-
1 rated 30
VDC, maximum 2 A.
Installing a Storage Drive
The DA-680 is provided with a storage slot for storage expansion using
a SATA drive. You will need to purchase an accessory kit that includes a
tray, screws, and cables to install the SATA drive.
To install a SATA disk in the storage slot, do the following:
1. Open the top cover and confirm the location of the slot.

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2. Remove the screws and install 3 copper pillars as indicated.
3. Place the SATA drive on a tray, ensure that the SATA disk aligns
with the screws on the storage tray, and fasten the screws.
4. Connect the cables to the SATA drive as indicated below.
5. Place the tray with the SATA drive on the pillars in the slot and
fasten the screws.
6. Connect the cable to the PCB board as indicated.