DA-820C Series

x86 3U 19-inch rackmount, IEC 61850, native PRP/HSR computer with 7th Gen Intel® Core™ CPU

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Features and Benefits

  • IEC 61850-3, IEEE 1613, and IEC 60255 compliant for power substation automation systems
  • EN 50121-4 compliant for railway wayside applications
  • 7th Generation Intel® Xeon® and Core™ Processor
  • 2 Built-in SO-DIMM ECC DDR4 memory slot, up to total 32GB capacity
  • 4 hot-swappable SSD slots; support Intel® RST RAID 0/1/5/10
  • Highly reliable design, supporting dual power and PRP/HSR technology (with PRP/HSR expansion module)
  • 1 PCIe x16, 1 PCIe x4, 2 PCIe x1, and 1 PCI slots for expansion modules
  • Redundant power supply (100 to 240 VAC/VDC)


  • moxa-iec61850-3-ieee1613-black-certification-logo-image.png | Moxa
  • moxa-en50121-4-certification-logo-image.png | Moxa
  • moxa-ce-certification-logo-image.png | Moxa
  • moxa-ul-rec-certification-logo-image.png | Moxa
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The DA-820C’s main operating system is based on the Intel® Core™ i3, i5, i7 or Xeon CPU. The computer comes with 3 display ports (HDMI x 2, VGA x 1), 5 USB ports, 4 gigabit LAN ports, 2 3-in-1 RS-232/422/485 serial ports, 6 DI ports, and 2 DO ports. The DA-820C is also equipped with 4 hot swappable 2.5” HDD/SSD slots that supports Intel® RST RAID 0/1/5/10 functionality.

The DA-820C complies with IEC-61850-3 and IEEE 1613 standards to deliver stable and reliable system operation for power applications. The computer 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.

EN 50121-4 compliance confirms that the DA-820C can deliver stable and reliable system operations in rail wayside applications, such as station SCADA systems, wayside disaster prevention, traction power, and signaling and safety systems to provide an integrated view of your smart rail setup.

The robust, rack-mountable design provides the hardened protection needed for applications in various industrial environments.

Proactive Monitoring Function

Moxa Proactive Monitoring is a small-footprint, resource-friendly, easy-to-use utility that allows users to track a number of system parameters. Users can view the current parameter values for these key parts by simply clicking on the icons corresponding to the parameters in the user interface. User-defined key part indicators (KPIs) are used to monitor the computer’s key parts. Visible and/or audio alerts are triggered automatically via relay and SNMP traps when these KPIs exceed their preset threshold values, making it extremely convenient for operators to avoid system downtime by setting up predictive maintenance tasks well in advance.


Front View

Rear View

  • CPU

    Intel® Core™ Processors Xeon E3-1505M v6, 4C/8T, 3GHz
    Intel® Core™ Processors Xeon E3-1505L v6, 4C/8T, 2.2GHz
    Intel® Core™ Processors i7-7820EQ, 4C/8T, 3GHz
    Intel® Core™ Processors i5-7442EQ, 4C/4T, 2.1GHz
    Intel® Core™ Processors i3-7102E, 2C/2T, 2.1GHz

  • System Memory Slot

    SODIMM DDR4 slot x 2

  • DRAM

    32 GB max. capacity (SODIMM x 2, each supporting 2400 MHz and 16 GB maximum per module)
    ECC RAM only supports i3 CPU and Xeon CPU models

  • Graphics Controller

    Xeon E3-1505MV6: Intel® HD Graphics P630
    Xeon E3-1505LV6: Intel® HD Graphics P630
    i7-7820EQ: Intel® HD Graphics 630
    i5-7442EQ: Intel® HD Graphics 630
    i3-7102E: Intel® HD Graphics 630

  • Storage Slot

    2.5-inch HDD/SSD slots x 4

  • Supported OS

    Windows 10 Embedded IoT Ent 2019 LTSC 64-bit
    Linux Debian 9
    Note: OS available by CTOS

  • Supported Driver

    Windows Server 2016

  • Video Output

    HDMI x 2, HDMI connector (type A)
    VGA x 1, 15-pin D-sub connector (female)

  • Serial Ports

    RS-232/422/485 ports x 2, software selectable (DB9 male)

  • USB 2.0

    USB 2.0 hosts x 3, type-A connectors
    2 ports in the front, 1 port inside the computer

  • USB 3.0

    USB 3.0 hosts x 3, type-A connectors
    2 ports in the rear

  • Expansion Slots

    PCIe x16 slot x 1
    PCIe x4 slots x 1
    PCIe x1 slots x 2
    PCI slots x 1

  • Ethernet Ports

    Auto-sensing 10/100/1000 Mbps ports (RJ45 connector) x 4

  • TPM

    TPM v2.0

  • Digital Input

    DIs x 6

  • Digital Output

    DOs x 2

  • System

    Power x 1
    Storage x 1
    Programmable x 8

  • Serial

    2 per port (Tx, Rx)

  • LAN

    8 per port (10/100/1000 Mbps)

  • Baudrate

    300 bps to 115.2 kbps

  • Connector

    DB9 male

  • ESD

    8 kV (level 4)

  • Isolation

    2 kV

  • Serial Standards


  • Surge

    2 kV

  • RS-232


  • RS-422

    Tx+, Tx-, Rx+, Rx-, GND

  • RS-485-2w

    Data+, Data-, GND

  • RS-485-4w

    Tx+, Tx-, Rx+, Rx-, GND

  • Power Button

    Reset button (front panel)
    ON/OFF (rear panel)

  • Power Consumption

    100 W (max.)

  • Dimensions (without ears)

    440 x 132.8 x 281.4 mm (17.3 x 5.2 x 11.1 in)

  • Housing


  • Installation

    19-inch rack mounting

  • Weight

    14,000 g (31.11 lb)

  • Operating Temperature

    Standard Models: -25 to 55°C (-13 to 131°F)
    Wide Temp. Models: -40 to 70°C (-40 to 158°F)

  • Storage Temperature (package included)

    -40 to 85°C (-40 to 185°F)

  • Ambient Relative Humidity

    5 to 95% (non-condensing)

  • EMC

    EN 61000-6-2/-6-4

  • EMI

    CISPR 32, FCC Part 15B Class A

  • EMS

    IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV
    IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m
    IEC 61000-4-4 EFT: Power: 4 kV; Signal: 4 kV
    IEC 61000-4-5 Surge: Power: 4 kV; Signal: 4 kV
    IEC 61000-4-6 CS: 10 V
    IEC 61000-4-8: 20 A/m
    IEC 61000-4-11 DIPs

  • Power Substation

    IEC 61850-3, IEEE 1613

  • Protection Relay

    IEC 60255

  • Safety

    IEC 60950-1, IEC 62368-1, UL 62368-1

  • Shock

    IEC 60068-2-27, IEC 60870-2-2, IEC 61850-3 Edition 1.0

  • Green Product


  • Time

    325,730 hrs

  • Standards

    Telcordia SR332

Support Documents

Name Type Version Release Date
Datasheet for DA-820C Series (Preliminary)
1.7 MB
Datasheet v1.2 2019-09-11 Sep 11, 2019
Datasheet for DA-820C Series (Preliminary)
1.2 MB
Datasheet v1.1 2019-07-29 Jul 29, 2019

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