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ISM5026U
Industrial
Ethernet Switch

This rack-mounted managed Layer 2 industrial
Ethernet switch provides 20 10/100/1000Base-T ports,
4 Gigabit combo ports (copper/SFP), and 2 1000Base-X SFP slots for large-scale industrial network deployments.

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Managed L3 Industrial Ethernet Switch for Complex Networks

Advanced Layer 2 Management

Supports comprehensive Layer 2 management functions including VLAN, QoS, IGMP snooping, and port mirroring for flexible network control.

High Availability Redundancy

Supports industrial Ethernet redundancy mechanisms including STP, RSTP, and MSTP to enhance network availability.

Comprehensive Network Monitoring

Supports network monitoring and diagnostics through SNMP, RMON, and system logging to simplify operation and maintenance.

High-Density Rack-Mount Design

Features a 1U rack-mount form factor with high port density to support centralized deployment in control rooms and industrial network centers.

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 Supply

Equipped with dual redundant AC power inputs to enhance power reliability in mission-critical industrial installations.

  • Key Technical Specifications
    Dimensions / Weight 442 x 335 x 43.8 mm / 2.7 kg
    EMC / Certifications FCC Part 15 Class A; EN55022 Class A; IEC 61000-4 series; CE, FCC
    Environment -40 to +85 °C operating; IP40; fanless
    Management Web, CLI, SSH, HTTPS, Telnet, SNMPv1/v2c/v3, RMON
    Ports 20x 10/100/1000BaseT + 4x 100/1000Base(X/T) COMBO + 2x 100/1000BaseX SFP
    Power 100-240V AC dual-isolated inputs, overload and reverse polarity protection
    Protocols STP/RSTP/MSTP, IGMP Snooping, 4K VLANs, QoS (802.1p, DiffServ), Port Trunking
    Switching Performance 56 Gbps backplane bandwidth; 8K MAC table; 4 Mbit buffer
    Type Layer 2 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 1059, 1119 NTPv1/2
    RFC 1112 IGMP
    RFC 1191 Path MTU Discovery
    RFC 1403 BGP OSPF Interaction
    RFC 1542 Bootstrap Extensions & DHCP
    RFC 1851 The ESP Triple DES Transform
    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 2474 DiffServ Precedence
    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 862 Echo Protocol
    RFC 863 Discard Protocol
    RFC 867 Daytime Protocol
    RFC 868 Time Protocol
  • Other Protocols
    GMRP GARP
    GVRP GARP
    IGMP Snooping
    SNMPv3 Supported
    SSH2 Secure Shell 2
  • Physical Performance
    Cooling Method Fanless cooling
    Dimensions (W × D × H) 442 mm × 335 mm × 43.8 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 2.7 kg
  • Hardware Performance
    Backplane Bandwidth 56 Gbps
    Exchange Rate 148,800 pps/100M ports; 1,488,000 pps/1000M ports
    MAC Table Size 8K
    Packet Buffer Size 4 Mbits
    Transmission Mode Parallel Storage Forwarding
  • Power Parameters
    Input Voltage 100-240V dual-isolated power inputs
    Overload Current Protection Supported
    Reverse Polarity Protection Supported
  • 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 CE, FCC
  • 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, SSH, HTTPS, Telnet
    Others 4K VLANS, IPv4/IPv6 multicast, storm control, support Jumbo Frame
    Redundancy STP, MSTP, RSTP, Port Trunking
    Time Synchronization NTP
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Standard package*

  • ISM5026U 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 ISM5026U?

The ISM5026U is a Layer 2 managed 1U rack-mount industrial Gigabit switch with 20× Gigabit copper + 4× combo (SFP/RJ45) + 2× SFP uplinks. Fanless, redundant 100–240 V AC/DC power input. 56 Gbps backplane, 8K MAC table. Operating temperature −40 °C to +85 °C. Certifications: CE, FCC. Designed for control room rack cabinets where AC power is standard.

Mount in a standard 1U slot of a 19″ rack cabinet using the supplied rack-mount brackets. Connect to standard 100–240 V AC mains power (or DC if your facility uses DC distribution). The redundant power inputs accept either AC or DC for high availability.

Connect your PC directly to any copper port. Set the PC’s IP to 192.168.2.2 / 255.255.255.0. Go to http://192.168.2.1 and log in with device-label credentials. The ISM5026U does not run DHCP by default.

Choose ISM5026U for control room rack cabinets where 19″ rack mounting and 100–240 V AC mains power are standard — typical for office IT closets, data centers, and traditional industrial control rooms. Choose ISM5020D for DIN-rail mounting in distributed industrial cabinets with 24 V DC power and where Layer 3 routing or IEC 61850-3 substation certification is required.

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