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As the compact protocol gateway for system integrated application, DG-A2/A4 is designed in conformity with the new IEC 61850 standards. It can be anywhere deployed to be a smart unit to transfer data by its RS232/RS485 serial ports and Ethernet ports. By importing any prespecified IEC 61850 SCL(.icd/.cid) template file and after mapping the data to internal VMD model with the configuration tool - ICE, this unit can be viewed just as the standard IEC 61850 IED from the master station.

With powerful data communication and process function, high reliability, low power consumption, flexible and easy installation advantages, DG-A is the ideal intelligent device choice for all kinds of system integrated applications.

Key Features

Special designing based on ARM Cortex-A8 architecture

High performance yet ultra low power consumption

Easy IEC 61850 SCL(CID/ICD) import and configuration process

Configurable MMS(IEC 61850-8-1)server & client application

Support GOOSE publish and subscribe

Built-in SoftPLC calculating task

Support WEB HMI function

Configurable hardware watchdog

Full functional NTP for time synchronization

Dual mode of RS232/RS485 isolated serial ports

Support GPRS/3G wireless communication

Remote diagnosis or maintenance by network

Compliant to IEC 61850-3, IEEE 1613 standards

Features & Benefits

Hardware Parameters
Performance: ARMv7 800MHz Core
RAM: 512M DDR2-333
Build-in storage: 512M Nand Flash
Extra storage: 8G/64G Micro SD(Optional)
Ethernet: 10/100Base-T
Serial Ports: RS232/RS485(Isolated)
Wireless Port: 3G GRPS


DNP 3.0 Level-2 over serial port or LAN

Modbus(RTU/ASCII)/Modbus over serial port and LAN

IEC 60870-5-101/104 salve/master


SoftPLC calculator

WEB HMI module

- Customer specified

Technical Benefits
Easy framework configurable by all-in one integration tools
Later data binding & mapping technology without needing change SCL modeling file
Advanced data internal processing functionality

Typical Application

Technical Parameters



Console portRS232, RJ45RS232, RJ45
Serial ports2 x RS232/RS485   (Isolated)4 x RS232/RS485   (Isolated)
Ethernet1 x 10/100M RJ452 x 10/100M RJ45
GPRS Module1 x 3G Optional1 x 3G Optional
Build-in   storage512M Nand Flash512M Nand Flash
Extra storageN/A8G/64G Micro SD
Hardware   WatchdogConfigurableConfigurable
Time   SynchronizationNTPNTP
Power Supply12-24VDC/85-264VAC12-24VDC/85-264VAC
Power   Consumption<5W<5W
Dimension   (WxHxD)48x138x86 mm54x139x118 mm
MountingDIN RailDIN Rail
Operating   Temperature-40 to 85°C-40 to 85°C

Electrical Parameter
Input: 12~24V DC or 85~264V AC
Average power consumption: 5W
Relative humidity : 5%~ 95% (no condensation)
Electrostatic discharge immunity test: GB/T 17626.2-1998 IEC 61000-4-2-1995 class 4
Transient immunity: GB/T 17626.4-1998 IEC 61000-4-4-1995 class 4
Surge immunity: GB/T 17626.5-1998 IEC 61000-4-5-1995 class 4
Power frequency magnetic fields immunity: GB/T 17626.8-1998 IEC 61000-4-8-1995 class 5
Ring waves immunity: GB/T 17626.12-1998 IEC 61000-4-12-1995 class 4
Pulse magnetic field immunity: GB/T17626.9-1998 IEC 61000-4-9-1995 class 5
Damped oscillatory magnetic field immunity: GB/T17626.10-1998 IEC 61000-4-10-1995 class 4
Voltage dips and short interruptions and voltage variations immunity: GB/T 15153.1-1998 IEC 61000-4-11 2004 Δ U-100%, Δ t = 0.5s
Insulation resistance: >5MΩ
Insulating strength: no breakdown when applying 500V and 1500V to the communication ports and power supply ports respectively
Dry heat test: GB/T2423.2-2001 IEC 60068-2-2 75°C, 24 hours
Cold test: GB/T2423.1-2001 IEC 60068-2-1 -25°C, 24 hours
Damp heat: GB/T2423.3-1993 IEC 60068-2-3 +40°C ± 2°C, 93% ± 3%, insulation
resistance: >1MΩ

Ordering Information