SEL-2741

Create Stronger Network Security—Control exactly what is allowed on your network with the deny-by-default architecture and multilayer packet inspection at each hop with OT SDN provided by the SEL-2741 and SEL-5056 Software-Defined Network Flow Controller software. OT SDN allows you to control which devices are allowed on your network and what conversations each device is allowed to have. Only packets matching the authorized conversations are forwarded; all others are dropped or sent to your intrusion detection system. OT SDN also makes systems more cybersecure by eliminating legacy, attack-prone networking features, like media access control (MAC) tables, the Rapid Spanning Tree Protocol (RSTP), multicast, and broadcast.

Improve Failover Performance—OT SDN proactively traffic-engineers networks, bringing more precision and predictability to critical infrastructure networks reliably supporting even the most demanding control system signals like Sampled Values. Failover time is less than 100 μs, two orders of magnitude less than those achieved with legacy networking technology. And with no blocked ports for RSTP, all the SEL-2741 ports are usable for communications flows.

Streamline NERC CIP Data Collection—Use the SEL-2741 to establish inline, non-bypassable security controls for ports and services. Use the SEL-2741 and SEL-5056 with the SEL Flow Auditor application to automate information collection and reporting of NERC CIP-007-6 R1.1 without dangerous scanning or expensive truck rolls, which addresses system security management for open ports and services on cyber assets.

Manage Network Scalability and Change Management—Manage your network, not individual switches. SEL-5056 Software-Defined Network Flow Controller software provides centralized network control, interfacing with SEL-2741 switches to configure the network and manage all network changes. All network additions and changes are managed together through transactions between the flow controller software and the affected switches, eliminating the need to update settings in switches individually.

Flexible Ordering Options—Build your perfect 24-port switch with copper or small form-factor pluggable (SFP) options, wide-range dual power supplies, and digital inputs. The SEL-2741 supports both SEL and non-SEL fiber SFPs with a generous power budget. All 24 ports support 100 Mbps or 1 Gbps speeds to support even the most demanding process bus applications.

Synchronize Time Over the LAN With Accuracy—The SEL-2741 acts as a transparent Precision Time Protocol (PTP) clock, supporting the IEEE C37.238-2017 power system profile to ensure submicrosecond time synchronization of end devices.