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.
Redundant Power Architecture
Equipped with dual redundant AC power inputs to ensure continuous operation in mission-critical industrial environments.
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Key Technical Specifications
Dimensions / Weight 440 x 321 x 44.4 mm / 4.1 kgEMC / Certifications FCC Part 15 Class A; EN55022 Class A; IEC 61000-4 series; IEC61850-3Environment -40 to +85 °C operating; IP40; fanlessGestión Web, CLI, SNMPv1/v2c/v3, RMONPorts 16x 10/100/1000BaseT + 8x 100/1000Base(X/T) COMBO + 4x 1000/2500BaseX SFPPower 100-240V AC dual-isolated inputsProtocols STP/RSTP/MSTP, IGMP Snooping, OSPF, VRRP, PIM-SM/DM, BGP, Port TrunkingSwitching Performance 144 Gbps backplane bandwidth; 16K MAC table; 1.5 Mbit bufferType Layer 3 Managed Industrial Ethernet Switch
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IEEE Standards
IEEE 802 NetworksIEEE 802.1d Spanning Tree AlgorithmIEEE 802.1p Priority QueuingIEEE 802.1q VLAN taggingIEEE 802.1s Multiple Spanning TreeIEEE 802.1w Rapid Spanning TreeIEEE 802.1x AuthenticationIEEE 802.3 EthernetIEEE 802.3ac VLAN TaggingIEEE 802.3ad Link AggregationIEEE 802.3u Fast EthernetIEEE 802.3x Flow ControlIEEE 802.3z Gigabit Ethernet
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RFC Standards
RFC 1027 Using ARP to Implement Transparent Subnet GatewaysRFC 1058 RIPRFC 1059, 1119 NTPv1/2RFC 1112 IGMPRFC 1191 Path MTU DiscoveryRFC 1256 ICMP Router discovery protocolRFC 1267 A Border Gateway Protocol 3 (BGP-3)RFC 1388 RIP Version 2 Carrying Additional InformationRFC 1403 BGP OSPF InteractionRFC 1519 CIDR (Classless Inter-domain Routing)RFC 1587 OSPF NSSARFC 1765 OSPF Database OverflowRFC 1812 Requirements for IP Version 4 RoutersRFC 1994 PPP Challenge Handshake Authentication Protocol (CHAP)RFC 2068 HTTPRFC 213 DHCP ServerRFC 2138 RADIUSRFC 2139 RADIUS AccountingRFC 2236 IGMPv2RFC 2328 OSPF V2RFC 2338 VRRPRFC 2362 PIM-SM/DMRFC 2370 The OSPF Opaque LSA OptionRFC 2474 DiffServ PrecedenceRFC 2475 DiffServ Core and Edge Router FunctionsRFC 2597 DiffServ Assured ForwardingRFC 2598 DiffServ Expedited ForwardingRFC 2644 Directed BroadcastsRFC 2865 Remote Authentication Dial In User Service (RADIUS)RFC 3046 DHCP Relay Agent Information OptionRFC 3222 Forwarding Information Base (FIB)RFC 768 UDPRFC 791 IPRFC 792 ICMPRFC 793 TCPRFC 826 ARPRFC 854 Telnet Client & ServerRFC 904 Exterior Gateway Protocol Formal Specification
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Other Protocols
GMRP GARPGVRP GARPIGMP SnoopingSNMPv3 SupportedSSH2 Secure Shell 2
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Physical Performance
Cooling Method Fanless coolingDimensions (W × D × H) 440 mm × 321 mm × 44.4 mmEnclosure Fully enclosed seamless metal enclosureHumidity 5 ~ 95% (non-condensing)Ingress Protection IP40Mounting Method Rack mountingOperating Temperature -40 °C ~ +85 °CStorage Temperature -40 °C ~ +85 °CWeight 4.1 kg
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Hardware Performance
Backplane Bandwidth 144 GbpsExchange Rate 148,800 pps/100M ports; 1,488,000 pps/1000M portsMAC Table Size 16KPacket Buffer Size 1.5 MbitsTransmission Mode Parallel Storage Forwarding
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Power Parameters
Input Voltage 100-240V dual-isolated power inputs
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Electromagnetic Characteristics
EMI FCC 47 CFR Part 15 Class A; EN55022 Class AEMS 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
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Mechanical Characteristics
Freefall IEC60068-2-31Shock IEC60068-2-27Vibration IEC60068-2-6
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Certifications
Certifications IEC61850-3
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Quality Assurance
MTBF 35 yearsWarranty Period 5 years
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Software Specifications
Diagnostic Mode Indicator light, Journal File, RMON, Port Mirroring, TRAPManagement Mode Browser, Serial Port, STD-17 MIB-II, STD-58 SMIv2, STD-59 RMON, STD-62 SNMPv3, SNMPv2c, SNMPv1Others IPv4/IPv6 multicast, storm control, MC/BC protection, support Jumbo FrameRedundancy STP, MSTP, RSTP, Port TrunkingTime Synchronization NTP
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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Learn More →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.
How do I install and power the ISM7028U?
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.
How do I access the ISM7028U web interface?
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.
Is the ISM7028U suitable for substation IEC 61850 networks?
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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