IEC 61850 Ethernet Switches for Power Automation Systems

Wuhan Maiwe Communication Co., Ltd. was established in 2001, committing to Industrial Ethernet Switches, EN50155 Switches, Embedded Communication Modules, Device Networking Products, Industrial Wireless Equipment and IIoT related products over 20 years. The products have penetrated into the power, rail transit, industrial automation, new energy, mining, military industry, environmental protection, petrochemicals and industrial controlling fields. Its main products support standard protocol like RSTP, MSTP, VRRP, EAPS, OSFP, Modbus and so on, also have obtained CE, FCC, RoHS, EN50155 and some other international certifications.
MISCOM7028-4GF Series
  • 4 Gigabit SFP ports+ 24 100M Fast Ethernet ports Rack-mount Layer 2 Indudstrial Ethernet Switch
Features and Benefits
  • Support MW-Ring ring network patent technology
  • IEC61850-3 standard
  • Support VLAN, QoS, port aggregation, and port mirroring functions
  • Working temperature -40°C~85°C
  • Flexible fiber and copper combanition
Online consultation
  • Overview
  • Specifications
  • Download
  • Ordering Information
Product Description

MISCOM7028 series Layer 2 switches comply with IEC61850-3 and IEEE1613 industry standards (China State Grid Class A standard), follow the main communication standards in the industrial field, and meet technical issues such as real-time communication and network security. At the same time, this series provides a variety of ways to manage the switch, including accessing the command line interface (CLI) of the switch through HyperTerminal, or managing the switch through the telnet management system, or using the SNMP management software system to manage the switch, and also supports multiple network monitoring protocols: LLDP, SNTPv4, DHCP. At the same time, it provides some common advanced management functions such as MSTP, IGMP, IGMP Snooping, VLAN, GVRP, QoS, port aggregation, port speed limit, broadcast storm suppression, ACL, port mirroring and so on. In terms of device management, it supports FTP/TFTP upgrade, log recording and uploading, and power failure alarm output. In terms of structural installation, you can flexibly choose rack installation or desktop installation. Products are widely used in integrated energy, smart city, rail transit, intelligent transportation, industrial automation and other industrial fields.

Features and Benefits

-Support 4 Gigabit fiber ports + 24x10/100M copper ports

-Support front and rear indicator status display

-Support MW-Ring ring network patent technology (failure recovery time is less than 20ms)

-Support static multicast filtering technology, IGMP Snooping

-Support broadcast storm suppression and port rate control functions

-Support industrial grade with isolated power supply, optional dual redundant power supply

-Support status relay alarm output such as power loss, fiber drop, and storm

-Supports network management functions such as VLAN, QoS, port aggregation, and port mirroring

-Industrial grade wide temperature design, fanless thermal design

-Meet the requirements of harsh industrial environments

-Conforms to IEC61850-3 standard

-Meets Grade A standard of State Grid

Software function

Switch Properties

Support port speed limit

Support port aggregation

Support port flow control

Support port VLAN, IEEE 802.1Q VLAN

Support broadcast storm suppression

Redundancy Protocols

Support MW-Ring ring network technology, self-healing time <20ms

Support STP/RSTP


Support IGMP v1/v2, IGMP Snooping

Support GMRP and Support static multicast filtering


Support IEEE 802.1x, HTTP, RADIUS, user grading and MAC address binding

Service quality management

Supports SP and WRR queuing.

Support QoS setting

IP address management

Support DHCP server

Management and maintenance

Support Console, WEB management

Support SNMPv1/v2c

Support software upgrade

Support host computer IP/MAC conflict alarm

Support for power failure alarm, power alarm, port alarm

Support port mirroring

Support log viewing

Support Link-check

Support NTP

Support accept frame transmission frame statistics

Technical parameters

Protocol Standard

IEEE802.3, IEEE802.3u (100Base-TX&100Base-FX), IEEE802.3x (Flow control), IEEE802.3ab(1000Base-T), IEEE802.3z(1000Base-LX), IEEE802.1D(STP), IEEE802.1w(RSTP), IEEE802.1Q(VLAN), IEEE802.1p(Priority), IEEE802.1x(Access control)

Switch capability

Priority Queues


VLAN Number


IGMP multicast group


MAC Table Size


Backplane bandwidth


Switch Delay



Gigabit ports

Port numbers: 4

Connector: SFP fiber port(LC connector, single-mode/ multi-mode) or Self-adaption 10/100/1000M-TX

Interface form: SFP optical port (LC interface, single/ multi-mode optional) or Self-adaption 10/100/1000M-TX

Baud rate: 1000Base-LX (optical port), Self-adaption 10/100/1000MBase-TX

100M Port

Port number: 24

Connector: 1×9 fixed optical port (single/ multi-mode optional, optional SC/FC/ST interface) or RJ45 100M TX

Baud rate:100Base-FX(optical port), Self-adaption 10/100MBase-TX

Console port

RS232, RJ45

Terminal block for relay alarm

3-pin 5.08mm terminal block, 1A@24VDC 

Terminal block for power input

5-pin 5.08mm terminal block

Communication distance


100m(CAT5/CAT5e cable)

Multi-mode Fiber

Gigabit multi-mode: 850nm, 500m; 100M multi-mode: 1310nm, 2km

Single-mode Fiber

Gigabit single-mode: 1310nm, 20km; 100M singlemode1310nm, 20/40km; 1550nm, 60/80km

LED indicator lights

Front panel LED lights

Port light: LINK/ACT; SPEED

System work light: RUN

Power status light: PWR1; PWR2;

Alarm light: ALARM

Back panel LED lights

RJ45 Port light: LINK/ACT; SPEED

Fiber light: LINK/ACT


Input power


Input current


Power consumption


Overload protection


Reverse protection


Redundancy protection


Working Environment

Operating Temperature


Storage temperature


Ambient Humidity


Physical Characteristics


IP40 protection, aluminum alloy shell


Standard 19-inch rack mounting,
Support front and rear outlet installation



Industry standard


EN61000-4-2(ESD), Level 4

EN61000-4-3(RS), Level 4

EN61000-4-4(EFT), Level 4

EN61000-4-5(Surge), Level 4

EN61000-4-6(CS), Level 4

EN61000-4-8, Level 5









5 Years







MISCOM7028-4GF Series Datasheet

Version 2.0

Ordering Information


4 Gigabit SFP ports +24x10/100M Tx ports, single AC85-264V/ DC110~370V isolate power supply


4 Gigabit Fx ports +4x100M Fx ports +20 10/100M Tx ports, single AC85-264V/ DC110~370V isolate power supply


4 Gigabit SFP ports +8x100M Fx ports +16 10/100M Tx ports, single AC85-264V/ DC110~370V isolate power supply


4 Gigabit SFP ports +12x100M Fx ports,12 10/100M Tx ports, single AC85-264V/ DC110~370V isolate power supply


4 Gigabit SFP ports +16x100M Fx ports +8 10/100M Tx ports, single AC85-264V/ DC110~370V isolate power supply


4 Gigabit SFP ports +24x100M Fx ports, single AC85-264V/ DC110~370V isolate power supply

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