Moxa Technologies DA-820C Series User manual

P/N: 1802008201010
*1802008201010*
DA-820C Series
Quick Installation Guide
x86 Rackmount Embedded Computers
Version 1.0, June 2019
Technical Support Contact Information
www.moxa.com/support
Moxa Americas:
Toll
-free: 1-888-669-2872
Tel:
1-714-528-6777
Fax:
1-714-528-6778
Moxa China (Shanghai office):
Toll
-free: 800-820-5036
Tel:
[phone]
Fax:
[phone]
Moxa Europe:
Tel:
[phone]
Fax:
[phone]
Moxa Asia-Pacific:
Tel:
[phone]
Fax:
[phone]
Moxa India:
Tel:
[phone]
Fax:
[phone]

2019 Moxa Inc. All rights reserved.

- 2 -
Overview
The DA-820C computer’s main operating system is based on the Intel®
Core™ i3, i5, i7 or Xeon CPU. The computer comes with 3 display ports (2
x HDMI + 1 x VGA), 5 USB ports, 4 Gigabit LAN ports, 2 3-in-1
RS-232/422/485 serial ports, 6 digital input ports and 2 digital output
ports. The DA-820C is equipped with 4 hot-swappable 2.5” HDD/SSD
slots and supports Intel® RST RAID 0/1/5/10 functionality. In addition,
the DA-820C comes with 5 standard PCI/PCIe slots, allowing users to
install various peripheral interface expansions modules.
With IEC-61850-3 and IEEE 1613 compliance, the DA-820C is sure to
deliver stable and reliable system operation for power applications. The
DA-820C also complies with the IEC 60255 standards, which cover the
protection of electrical relays in a smart substation. IEC 60255 is one of
the most widely used standards for testing relays and protection
equipment, and compliance with the standard ensures that the DA-820C
will work reliably and seamlessly with IEDs as part of a robust substation
automation system.
Package Checklist
Each basic system model is shipped with the following standard items:
•DA-820C rackmount computer
•Rackmount kit
•Quick Installation Guide
•Documentation and software CD
•Warranty card
Hardware Installation
Front View

- 3 -
Rear View
Connecting the Power
The DA-820C provides dual power inputs using a terminal block, which is
located on the rear panel. Connect the power cord wires to the screws,
and then tighten the screws. The Power LED will light up to indicate that
power is being supplied to the DA-820C, after which the BIOS will
initialize the flash disk module, causing the Storage LED to blink. It
should take about 30 to 60 seconds for the operating system to complete
the boot up process.
In addition, a Power button on the rear panel allows users to power on the
computer when it is in the sleep or hibernate mode.
For detailed power connection and surge protection information, refer to
the DA-820C Hardware User’s Manual.
Front-panel LEDs
There are 40 LED indicators on the front panel. The LEDs are described in
the following table:
LED
Color
Description
Power
Green
Power is on
Off
No power input
Storage
Yellow/
Blinking
Data is being written to or read
from the storage unit
Off
Storage unit is idle
P1
Off
The 1
st
power supply is on
Red
Error in the 1
st
power supply
P2
Off
The 2nd power supply is on
Red
Error in the 2nd power supply

- 4 -
LED
Color
Description
Gigabit LAN LEDs 1
to 4
Green
100 Mbps Ethernet mode
Orange 1000 Mbps (Gigabit) Ethernet
mode
Serial Port P1/P2
Green
Tx: Serial data is being transmitted
Yellow
Rx: Serial data is being received
Programmable LEDs
1 to 8
Green/
Blinking
Can be used to indicate statuses or
for debugging, as defined by users.
Module LEDs 1 to 8
Green/
Orange/
Blinking
Reserved for LAN-port and
serial-port expansion cards.
Connecting to Displays
The DA-820C comes with 1 VGA interface that uses D-Sub 15-pin female
connectors. In addition, 2 HDMI interfaces are provided on the rear panel.
NOTE
For highly reliable video streaming, use premium certified HDMI
cables.
Connecting to a Keyboard and Mouse
Connectors for the keyboard and a mouse are located on the rear panel of
the computer. Both connectors are PS/2 interfaces; you can directly
connect a keyboard and a mouse using these connectors.
USB Ports
The DA-820C 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-820C comes with 2 software-selectable RS-232/422/485 serial
ports on the rear panel. The ports use DB9 male connectors. Refer to the
following table for the pin assignments:
Pin
RS-232
RS-422
RS-485
(4-wire)
RS-485
(2-wire)
1
DCD
TxDA(-)
TxDA(-)
–
2
RxD
TxDB(+)
TxDB(+)
–
3
TxD
RxDB(+)
RxDB(+)
DataB(+)
4
DTR
RxDA(-)
RxDA(-)
DataA(-)
5
GND
GND
GND
GND
6
DSR
–
–
–
7
RTS
–
–
–
8
CTS
–
–
–
Ethernet Ports
The DA-820C has 4 100/1000 Mbps RJ45 Ethernet ports on the rear panel.
Refer to the following table for pin assignments:

- 5 -
Pin
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)-
Digital Inputs/Digital Outputs
The DA-820C comes with six digital inputs and two digital outputs in a
terminal block. Refer to the following figures for the pin definitions and
wiring methods.
Relay Output
The DA-820C provides a relay
output located on the rear panel of
the computer. Refer to the figure
on the right for detailed pin
definition of the relay output
connectors.
Installing Storage Disks
The DA-820C comes with four storage sockets, allowing users to install
four disks for data storage. Unfasten the screw on the left side of the
cover on the storage disk tray and pull down the cover. Pull out the tray to
install the disks. Refer to the DA-820C Hardware User’s Manual for
details.

- 6 -
There are four slots for installing
four SSD disks. The installation
sequence of the disks is indicated
in the diagram on the right.
Installing Expansion Modules
The DA-820C comes with an expansion module socket on the rear panel.
You can install Moxa’s LAN or serial connectivity expansion module using
this socket. The DA-820C also comes with five slots to install Moxa’s
LAN-port modules with PRP/HSR functions or fiber-port modules. Refer to
the following table for the interface details of each slot.
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
PCIe x16
PCIe x4
PCIe x1
PCIe x1
PCI
For additional details, refer to the DA-820C Hardware User’s Manual.
WARNING
Power off the computer b
efore installing the expansion module
s
to avoid damage to the computer.