DA-820C Series

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 SODIMM ECC DDR4 memory slots; up to 64 GB total 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)


Download Datasheet



The DA-820C Series is a high-performance 3U rackmount industrial computer built around a 7th generation Intel® Core™ i3, i5, i7 or Intel® Xeon® processor. The computer comes with 3 display ports (HDMI x 2, VGA x 1), 6 USB ports, 4 gigabit LAN ports, two 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 support 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® Xeon® Processor E3-1505M v6 (8M Cache, 3.00 GHz)
Intel® Xeon® Processor E3-1505L v6 (8M Cache, 2.20 GHz)
Intel® Core™ i7-7820EQ Processor (8M Cache, up to 3.70 GHz)
Intel® Core™ i5-7442EQ Processor (6M Cache, up to 2.90 GHz)
Intel® Core™ i3-7102E Processor (3M Cache, 2.10 GHz)
Graphics Controller Intel® Xeon® E3-1505MV6: Intel® HD Graphics P630
Intel® Xeon® E3-1505LV6: Intel® HD Graphics P630
Intel® Core™ i7-7820EQ: Intel® HD Graphics 630
Intel® Core™ i5-7442EQ: Intel® HD Graphics 630
Intel® Core™ i3-7102E: Intel® HD Graphics 630
System Memory Slot SODIMM DDR4 slot x 4
DRAM 64 GB max. capacity (SODIMM x 2, each supporting 2400 MHz and 32 GB maximum per module)
ECC RAM only supports i3 CPU and Xeon CPU models
Supported OS Windows 10 Embedded IoT Ent 2019 LTSC 64-bit
Linux Debian 9
Note: OS available by CTOS
Storage Slot 2.5-inch HDD/SSD slots x 4
Supported Driver Windows Server 2016
Computer Interface
Ethernet Ports Auto-sensing 10/100/1000 Mbps ports (RJ45 connector) x 4
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 on the front panel, 1 port inside the computer
USB 3.0 USB 3.0 hosts x 3, type-A connectors
3 ports on the rear panel
Expansion Slots PCIe x16 slot x 1
PCIe x4 slots x 1
PCIe x1 slots x 2
PCI slots x 1
TPM TPM v2.0
Video Output HDMI x 2, HDMI connector (type A)
VGA x 1, 15-pin D-sub connector (female)
Digital Input DIs x 6
Digital Output DOs x 2
LED Indicators
System Power x 1
Storage x 1
Programmable x 8
LAN 8 per port (10/100/1000 Mbps)
Serial 2 per port (Tx, Rx)
Serial Interface
Baudrate 300 bps to 115.2 kbps
Connector DB9 male
ESD 8 kV (level 4)
Isolation 2 kV
Serial Standards RS-232/422/485
Surge 2 kV
Serial Signals
RS-422 Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w Data+, Data-, GND
Digital Input
Digital Input Channels DIs x 6
Voltage 0 to 30 VDC at 25 Hz
Wet Contact (DI to COM) On: 10 to 30 VDC
Digital Output
Digital Output Channels DOs x 2
Current Rating Max. 200 mA per channel
Voltage 24 to 30 VDC
I/O Type Sink
Power Parameters
Power Button Reset button (front panel)
ON/OFF (rear panel)
Power Consumption 100 W (max.)
Physical Characteristics
Housing Metal
Dimensions (without ears) 440 x 132.8 x 281.4 mm (17.3 x 5.2 x 11.1 in)
Weight 14,000 g (31.11 lb)
Installation 19-inch rack mounting
Environmental Limits
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 -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Green Product RoHS, CRoHS, WEEE
Standard and Cerifications
EMC EN 61000-6-2/-6-4, EN 55032/35
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
EC 61000-4-11 DIPs
Power Substation IEC 61850-3, IEEE 1613
Protection Relay IEC 60255
Shock IEC 61850-3 Edition 2.0, IEC 60068-2-27, IEC 60255-21-2
Safety IEC 60950-1, IEC 62368-1, UL 62368-1
Time 325,730 hrs
Standards Telcordia SR332
Warranty Period 3 years
Details See www.moxa.com/warranty