The SEL-2740S is the industry’s first field-hardened software-defined networking (SDN)-enabled switch and is designed to improve Ethernet cybersecurity and performance for operational technology (OT) applications. The SEL-2740S and the SEL-5056 Software-Defined Network Flow Controller give you path- and packet-level control of your communications flows, which eliminates common cybersecurity vulnerabilities in traditional LANs and improves failover performance to less than 100 μs. SEL SDN also makes it easy to more precisely manage large amounts of network traffic, making it the perfect solution for anyone transitioning to IEC 61850. The SEL-2740S is designed for the harsh environments commonly found in electric utility substations and industrial plants.
Create Stronger Network Security—Control exactly what is allowed on your network with the deny-by-default architecture of the SEL-2740S. SEL SDN uses four layers of matching rules to check every packet entering switches. Only packets matching the user-configured criteria are forwarded. SDN also makes systems more cybersecure by eliminating attack-prone networking features, like MAC tables, the Rapid Spanning Tree Protocol (RSTP), multicast, and broadcast.
Improve Failover Performance—SDN allows you to predefine every network path, bringing more precision to critical infrastructure networks and improving failover times to less than 100 μs, two orders of magnitude less than those achieved with traditional networking technology. And with no blocked ports for RSTP, all of the SEL-2740S ports are useable for communications flows.
Streamline NERC CIP Data Collection—Use the SEL-2740S and SEL-5056 with the SEL Flow Auditor application to automate reporting of NERC CIP-007-6 R1.1, which addresses system security management for open ports and services on cyber assets.
Manage Network Scalability and Change Management—Use the SEL-5056 to manage all network changes without affecting existing services and applications. All network additions and changes can be configured centrally and pushed out to configure the network of SEL-2740S switches.
Programmatically Test and Validate Your Network—Reduce deployment timelines and eliminate errors by using the SEL-5056 to programmatically test the network implementation and validate all configurations and contingencies prior to commissioning.
Synchronize Time Over the LAN With Accuracy—The SEL-2740S acts as a transparent Precision Time Protocol (PTP) clock, supporting the IEEE C37.238 power system profile to ensure submicrosecond time synchronization of end devices.
Lamp Test button verifies all LEDs are functional and lets you select the LED mode
General status indicators
Power supply status LEDs
Ethernet port status LEDs
Three LED modes are available for the Ethernet port status
Out-of-band flow controller port
Flow processor and alarm contact
Five modular slots for copper or fiber Ethernet interface options (in sets of four)
Dual power supply connections
Accurately distribute PTP.
Support for IEEE 1588 PTP transparent clock with the IEEE C37.238 power system profile
Ensure mission-critical application performance.
Sub-100-microsecond failover times
Create stronger network security.
Deny-by-default access control
Provide centralized log collection.
Greater situational awareness using syslog to send and collect logs from all switches
Design exact configurations to match the application.
Flexible 4-port Ethernet module options
Integrate seamlessly with existing infrastructure.
OpenFlow 1.3 support
Simplify network design.
Topology-independent networking with proactive traffic engineering of primary and secondary data paths
Simplify the implementation of power utility and industrial OT networks.
SEL-5056 Software-Defined Network Flow Controller
Programmatically test networks.
Validation of all configurations and contingencies prior to commissioning
Provide centralized network management.
Complete network visibility with formal change control and nondisruptive change management
Operate in tough conditions.
IEEE 1613 compliance, KEMA certification, and –40° to +85°C (–40° to +185°) operating range
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The Firmware IDs for older versions of the firmware can typically be found in Appendix A of the instruction manual.