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ICON

Integrated Communications Optical Network

The SEL ICON is a wide-area-networking multiplexer optimized for industrial and utility applications. You can configure the ICON to operate as a SONET or Ethernet multiplexer, enabling the platform to address the following network usage cases:

  • Segregated operational technology (OT)—SONET transport
  • Segregated OT—Ethernet transport
  • Converged information technology (IT)/OT
  • Migrating analog leased services

The deterministic packet transport technology in the ICON preserves the performance characteristics of time-division multiplexing (TDM) with no performance degradation when converting to Ethernet as a transport protocol.

By combining TDM and Ethernet transport options with a comprehensive range of data interfaces, the ICON makes it easy to migrate legacy network technologies to a converged IT/OT packet-based solution. The ICON interoperates with Multiprotocol Label Switching (MPLS) or Carrier Ethernet-based core networks to provide a hardened OT edge multiplexer for mission-critical applications.

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Transmission Line Protection—Implement current differential protection and direct transfer trip schemes with SEL relays. The ICON can communicate between relays with IEEE C37.94 circuits carried over an SEL ICON 2.4 Gbps SONET or 1 Gbps Ethernet fiber-optic link. You can apply the ICON Transfer Trip Module (TTM) to sense or assert contact closures for pilot protection schemes. The ICON network monitors and reports channel latency in real time. Selecting the shortest path between terminals as the primary path ensures that the system always reverts back to your primary configuration in the event of a path failure and subsequent restoration. These features, combined with robust IEEE 1613 environmental operating specifications, make the ICON ideal for critical power system applications.

Time Distribution—Distribute time information over the ICON WAN while maintaining accuracy better than 1 µs. You can use the ICON in power utility protection and monitoring applications, such as power system disturbance recording, synchrophasor measurement, and Sequential Events Records (SER) data collection. Each ICON node comes with an integrated GPS receiver as standard, allowing you to use multiple nodes for network timing. With multiple time references, the ICON network is resilient to localized or wide-area GPS outages, equipment failure, and GPS spoofing. Note: SONET transport is required to guarantee <1 µs timing accuracy.

Security Monitoring—Use the ICON to build substation security applications. You can connect fence, motion, panel, and door sensors to the SEL-2440 DPAC Discrete Programmable Automation Controller digital inputs and can connect strobes, sirens, and substation lighting to the control outputs. The ICON network can then communicate information back to a SCADA master. The ICON Ethernet ports support Power over Ethernet (PoE), which allows devices (such as video cameras) to draw their power from the ICON.

IEC 61850 Network Optimization—Ensure optimal performance of IEC 61850-based systems by supporting VLANs and Ethernet Pipes (Epipes). Epipes can contain and isolate Layer 2 broadcast commands, such as IEC 61850 Generic Object-Oriented Substation Event (GOOSE) messages, from all other noncritical traffic on the network, ensuring very-low-latency data communications paths between intelligent electronic devices (IEDs).

Communications Aggregation—Consolidate legacy DS1 and DS0 circuits between locations onto the ICON WAN to replace leased circuits and optimize network performance. The ICON FXO, FXS, and 4-Wire VF Modules support legacy analog telephone, PBX, fax, and modem circuits. The ICON accepts channelized DS1 circuits from any source, and you can groom the individual DS0 circuits to terminate anywhere within the network.

Synchrophasor Communication—Transport synchronized phasor measurements (synchrophasors) to provide a real-time measurement of electrical quantities across a power system. You can use these time-synchronized measurements for analysis and control of the power system. The ICON provides all the necessary timing and Ethernet communications for synchrophasor information reporting. The ICON distributes time across the entire network and can maintain better than 1 µs accuracy among all terminals in the network when using SONET transport. This allows synchrophasor systems to continue to operate accurately even in the event of a local or system-wide GPS failure.

Security and Critical Infrastructure Protection—Protect critical infrastructure and help achieve NERC CIP compliance with SEL-5051 Network Management System (NMS) Client Software and SEL-5052 NMS Server Software, which provide password management, session authentication and encryption, and automatic security report generation of all changes made to system settings, firmware, and hardware. The ICON AES-256 Crypto Module secures SONET internodal traffic and prevents interception.

Operation in Harsh EnvironmentsThe ICON withstands vibration, electrical surges, electrostatic discharge, fast transients, and a –20° to +65°C temperature range. It meets or exceeds IEEE 1613 standards for communications networking devices in electric power substations. The ICON is available in a standard 19" rack-mount chassis or a compact ICON Cube package for limited-space applications.

Overview

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Wide-Area Network Communications

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Wide-Area Network Communications

Protection-Class Performance on a Converged Network

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Protection-Class Performance on a Converged Network

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