Moxa
DA-681C-KL1-HH-T

DA-681C-KL1-HH-T

DA-681C Series

Intel® 7th Gen Core™ processor, IEC-61850, 1U rackmount computers with 6 Gigabit Ethernet ports, 12 isolated serial ports

  • 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® Core™ Processor
  • DDR4 memory slot; up to 32 GB capacity
  • Redundant power supply (100 to 240 VAC/VDC)

Certifications Iec61850 3 Ieee1613 Black · En50121 4 · CE · UL REC

Ships from and sold by A5 IT, an authorized Moxa reseller.

Specifications

Computer

CPU
Intel® Celeron® 3965U processor (2M cache, 2.20 GHz)
System Memory Slot
SODIMM DDR4 slots x 2
DRAM
32 GB max. capacity (SODIMM x 2, each supporting 2400 MHz and 16 GB maximum per module)
Storage Slot
2.5-inch HDD/SSD slots x 1 mSATA slots x 1
Graphics Controller
Intel® HD Graphics 630
Supported OS
Windows 10 IoT Enterprise LTSC 2019 Value (64-bit) Linux Debian 9 Linux SDKs supported: Debian 12 Ubuntu 22.04 (LTS & HWE) RedHat 9 CentOS 7.9

Computer Interface

Ethernet Ports
Auto-sensing 10/100/1000 Mbps ports (RJ45 connector) x 6
Serial Ports
RS-232/422/485 ports x 2 (software-selectable, DB9 male connector) RS-485 (2-wire) ports x 10 (terminal-block connector)
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
Video Output
HDMI x 2, HDMI connector (type A)
Secure Boot
UEFI
TPM
TPM v2.0

Digital Inputs

Connector
Screw-fastened Euroblock terminal
I/O Mode
DI
Isolation
3k VDC
Sensor Type
Dry contact Wet contact (NPN)
Dry Contact
Logic 0: Close to GND Logic 1: Open
Wet Contact (COM to DI)
Logic 0: 10 to 30 VDC Logic 1: 0 to 3 VDC

Digital Outputs

Connector
Screw-fastened Euroblock terminal
Current Rating
200 mA per channel
I/O Type
Sink
Voltage
0 to 30 VDC
Isolation
3k VDC

Serial Interface

Baudrate
50 bps to 115.2 kbps
Connector
Terminal block
ESD
8 kV (level 4)
Isolation
2 kV
Serial Standards
RS-232/422/485
Surge
2 kV

Serial Signals

RS-232
TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
Data+, Data-, GND

LED Indicators

System
Programmable x 8 Storage x 1 Power x 1
LAN
2 per port (10/100/1000 Mbps)
Serial
2 per port (Tx, Rx)

Power Parameters

Input Current
100 to 240 VAC, 50/60 Hz, 1.6 A (max) 100 to 240 VDC, 0.8 A (max)
Power Button
Reset button (front panel) ON/OFF (rear panel)

Physical Characteristics

Housing
Metal
Dimensions (without ears)
440 x 316 x 44 mm (17.32 x 12.44 x 1.73 in)
Weight
9,000 g (21.82 lb)
Installation
19-inch rack mounting

Environmental Limits

Operating Temperature
-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)

Standards and Certifications

EMC
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 IEC 61000-4-11
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
UL 62368-1

Declaration

Green Product
RoHS, CRoHS, WEEE

MTBF

Time
285,419 hrs
Standards
Telcordia Standard SR-332

Warranty

Warranty Period
3 years
Details
See www.moxa.com/warranty

Documentation

NameTypeVersionDate
Software Package for MXview One Series (Linux version)552.6 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Software Package for MXview One Series (Windows version)249.1 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
DA Series Computers (Linux driver and SDK)10.7 MBSoftware Packagev1.2Dec 26, 2024 Dec 26, 2024 Release notes
MMS Service Software Package1.4 MBSoftware Packagev1.2Jan 11, 2023 Jan 11, 2023 Release notes
x86 Computers (Linux drivers and SDK) 802.0 bytesSoftware Packagev1.1Nov 28, 2022 Nov 28, 2022 Release notes
Software Package for DA-681C Series (example code for Windows 10 IoT Enterprise LTSC 2021)18.0 MBSoftware Packagev1.0Jul 28, 2022 Jul 28, 2022 Release notes
Utility for DA-681C Series (Windows 10 IoT Enterprise LTSC 2021)2.9 MBUtilityv1.0Jul 28, 2022 Jul 28, 2022 Release notes
Driver for DA-681C Series (peripherals for Windows 10 IoT Enterprise LTSC 2021)1.6 GBDriverv1.0Jun 14, 2022 Jun 14, 2022 Release notes
MXview v3.2.6 Software417.7 MBSoftware Packagev3.2.6Jan 07, 2022 Jan 07, 2022 Release notes
Firmware for DA-681C Series (Linux)473.8 MBFirmwarev1.1Sep 08, 2021 Sep 08, 2021 Release notes
Proactive Monitoring v2.x Software Package68.4 MBSoftware Packagev2.2Jul 28, 2021 Jul 28, 2021 Release notes
MXview v3.2.4 Software389.2 MBSoftware Packagev3.2.4Jul 16, 2021 Jul 16, 2021 Release notes
Driver for DA-681C Series (Linux)436.9 KBDriverv1.0Oct 17, 2019 Oct 17, 2019 Release notes
Software Package for DA-681C Series (example code for Windows 10 IoT Enterprise LTSC 2019)16.9 MBSoftware Packagev1.0Sep 16, 2019 Sep 16, 2019 Release notes
Driver for DA-681C Series (peripherals for Windows 10 IoT Enterprise LTSC 2019)695.6 MBDriverv1.0Sep 16, 2019 Sep 16, 2019 Release notes
Utility for DA-681C Series (Windows 10 IoT Enterprise LTSC 2019)1.3 MBUtilityv1.0Sep 02, 2019 Sep 02, 2019 Release notes
Tech Note: Replacing the RTC Battery in DA Series Computers3.3 MBTech Notev1.0Jan 09, 2026
Datasheet for DA-681C Series1.1 MBDatasheetv1.8Jun 23, 2025
QIG for DA-681C Series501.6 KBQIGv1.3May 22, 2025
Manual for DA-681C Series (hardware)6.0 MBManualv1.1May 22, 2025
FOSS Statement for DA-681C series Win 10 LTSC 21H2216.7 KBDeclarationv1.0Oct 09, 2024
FOSS Statement for DA-681C series Win 10 LTSC 1809216.7 KBDeclarationv1.0Oct 09, 2024
Declaration of Conformity (EU/UK) for DA-681C Series308.4 KBDeclarationv1.0Dec 22, 2023
Windows 10 IoT Enterprise LTSC 2021 (212H) User Manual for x86 Computers9.4 MBManualv1.2Jan 20, 2023
Manual for Proactive Monitoring Software3.9 MBManualv2.0Jun 09, 2021
Manual for DA-681C Series (Linux)2.4 MBManualv1.0Feb 11, 2020
Manual for DA-681C Series (Windows)7.0 MBManualv1.0Feb 11, 2020
2D CAD for DA-681C Series (DA-681C)579.0 KB2D CADNov 27, 2019

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