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ISM7028U
Industrial
Ethernet Switch

This rack-mounted managed Layer 3 industrial
Ethernet switch provides 16 10/100/1000Base-T ports,
8 Gigabit combo ports, and 4 multi-rate 1000Base-X / 2.5GBase-X SFP slots for high-performance industrial networks.

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Enhanced Layer 3 Industrial Switching

Advanced Layer 3 Routing Services

Provides comprehensive Layer 3 routing services supporting complex industrial networks, including dynamic routing, multicast control, and gateway redundancy.

Seamless Network Redundancy

Supports seamless redundancy technologies such as PRP, HSR, and fast ring recovery to ensure zero or near-zero packet loss in mission-critical applications.

High-Performance Traffic Processing

Delivers high-throughput switching and traffic processing with advanced QoS, rate limiting, and traffic shaping for deterministic network performance.

System Monitoring & Diagnostics

Provides real-time monitoring of critical system parameters, including CPU load, memory usage, and power status, with comprehensive alarm and notification mechanisms.

Wide Temperature Operation

Features a fanless design supporting operation across a wide temperature range from -40°C to +85°C for unattended industrial sites.

Broad protocol support

Redundant Power Architecture

Equipped with dual redundant AC power inputs to ensure continuous operation in mission-critical industrial environments.

  • Key Technical Specifications
    Dimensions / Weight 440 x 321 x 44.4 mm / 4.1 kg
    EMC / Certifications FCC Part 15 Class A; EN55022 Class A; IEC 61000-4 series; IEC61850-3
    Environment -40 to +85 °C operating; IP40; fanless
    管理 Web, CLI, SNMPv1/v2c/v3, RMON
    Ports 16x 10/100/1000BaseT + 8x 100/1000Base(X/T) COMBO + 4x 1000/2500BaseX SFP
    Power 100-240V AC dual-isolated inputs
    Protocols STP/RSTP/MSTP, IGMP Snooping, OSPF, VRRP, PIM-SM/DM, BGP, Port Trunking
    Switching Performance 144 Gbps backplane bandwidth; 16K MAC table; 1.5 Mbit buffer
    Type Layer 3 Managed Industrial Ethernet Switch
  • IEEE Standards
    IEEE 802 Networks
    IEEE 802.1d Spanning Tree Algorithm
    IEEE 802.1p Priority Queuing
    IEEE 802.1q VLAN tagging
    IEEE 802.1s Multiple Spanning Tree
    IEEE 802.1w Rapid Spanning Tree
    IEEE 802.1x Authentication
    IEEE 802.3 Ethernet
    IEEE 802.3ac VLAN Tagging
    IEEE 802.3ad Link Aggregation
    IEEE 802.3u Fast Ethernet
    IEEE 802.3x Flow Control
    IEEE 802.3z Gigabit Ethernet
  • RFC Standards
    RFC 1027 Using ARP to Implement Transparent Subnet Gateways
    RFC 1058 RIP
    RFC 1059, 1119 NTPv1/2
    RFC 1112 IGMP
    RFC 1191 Path MTU Discovery
    RFC 1256 ICMP Router discovery protocol
    RFC 1267 A Border Gateway Protocol 3 (BGP-3)
    RFC 1388 RIP Version 2 Carrying Additional Information
    RFC 1403 BGP OSPF Interaction
    RFC 1519 CIDR (Classless Inter-domain Routing)
    RFC 1587 OSPF NSSA
    RFC 1765 OSPF Database Overflow
    RFC 1812 Requirements for IP Version 4 Routers
    RFC 1994 PPP Challenge Handshake Authentication Protocol (CHAP)
    RFC 2068 HTTP
    RFC 213 DHCP Server
    RFC 2138 RADIUS
    RFC 2139 RADIUS Accounting
    RFC 2236 IGMPv2
    RFC 2328 OSPF V2
    RFC 2338 VRRP
    RFC 2362 PIM-SM/DM
    RFC 2370 The OSPF Opaque LSA Option
    RFC 2474 DiffServ Precedence
    RFC 2475 DiffServ Core and Edge Router Functions
    RFC 2597 DiffServ Assured Forwarding
    RFC 2598 DiffServ Expedited Forwarding
    RFC 2644 Directed Broadcasts
    RFC 2865 Remote Authentication Dial In User Service (RADIUS)
    RFC 3046 DHCP Relay Agent Information Option
    RFC 3222 Forwarding Information Base (FIB)
    RFC 768 UDP
    RFC 791 IP
    RFC 792 ICMP
    RFC 793 TCP
    RFC 826 ARP
    RFC 854 Telnet Client & Server
    RFC 904 Exterior Gateway Protocol Formal Specification
  • Other Protocols
    GMRP GARP
    GVRP GARP
    IGMP Snooping
    SNMPv3 Supported
    SSH2 Secure Shell 2
  • Physical Performance
    Cooling Method Fanless cooling
    Dimensions (W × D × H) 440 mm × 321 mm × 44.4 mm
    Enclosure Fully enclosed seamless metal enclosure
    Humidity 5 ~ 95% (non-condensing)
    Ingress Protection IP40
    Mounting Method Rack mounting
    Operating Temperature -40 °C ~ +85 °C
    Storage Temperature -40 °C ~ +85 °C
    Weight 4.1 kg
  • Hardware Performance
    Backplane Bandwidth 144 Gbps
    Exchange Rate 148,800 pps/100M ports; 1,488,000 pps/1000M ports
    MAC Table Size 16K
    Packet Buffer Size 1.5 Mbits
    Transmission Mode Parallel Storage Forwarding
  • Power Parameters
    Input Voltage 100-240V dual-isolated power inputs
  • Electromagnetic Characteristics
    EMI FCC 47 CFR Part 15 Class A; EN55022 Class A
    EMS IEC(EN)61000-4-2, Class 4 IEC(EN)61000-4-3, Class 3 IEC(EN)61000-4-4, Class 4 IEC(EN)61000-4-5, Class 4 IEC(EN)61000-4-6, Class 3 IEC(EN)61000-4-9, Class 5
  • Mechanical Characteristics
    Freefall IEC60068-2-31
    Shock IEC60068-2-27
    Vibration IEC60068-2-6
  • Certifications
    Certifications IEC61850-3
  • Quality Assurance
    MTBF 35 years
    Warranty Period 5 years
  • Software Specifications
    Diagnostic Mode Indicator light, Journal File, RMON, Port Mirroring, TRAP
    Management Mode Browser, Serial Port, STD-17 MIB-II, STD-58 SMIv2, STD-59 RMON, STD-62 SNMPv3, SNMPv2c, SNMPv1
    Others IPv4/IPv6 multicast, storm control, MC/BC protection, support Jumbo Frame
    Redundancy STP, MSTP, RSTP, Port Trunking
    Time Synchronization NTP
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Standard package*

  • ISM7028U Managed Industrial Switch *1

* Standard package contents vary by standard order codes.

Contact us directly to learn more about our packaging options.

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Frequently Asked Questions

What is the ISM7028U?

The ISM7028U is a Layer 3 managed 1U rack-mount industrial switch with 16× Gigabit copper + 8× combo (SFP/RJ45) + 4× 1G/2.5G SFP uplinks — a high-port-density distribution switch. Fanless, redundant 100–240 V AC/DC power input. 144 Gbps backplane, 16K MAC table. Operating temperature −40 °C to +85 °C. Certifications: CE, FCC, IEC 61850-3. Static routing, RIP, OSPF, VRRP, DHCP server, sFlow, ERPS sub-50 ms ring recovery.

Mount in a standard 1U slot of a 19″ rack with the supplied brackets. Connect to redundant 100–240 V AC/DC mains power inputs. The high-density port layout supports a typical substation or industrial distribution-layer deployment with mixed copper and fiber uplinks.

Connect your PC directly to any copper port, set the PC’s IP to 192.168.2.2, and open a browser to http://192.168.2.1 . Log in with the device-label credentials.

Yes. The ISM7028U carries IEC 61850-3 certification and supports the rigorous EMI/EMC and surge requirements of substation environments. Layer 3 features (OSPF, VRRP, DHCP server) plus sub-50 ms ERPS ring recovery make it suitable as a substation distribution-layer switch carrying IEC 61850 GOOSE traffic and SCADA telemetry simultaneously.

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