The SEL ICON is a wide-area-networking multiplexer optimized for industrial and utility applications. 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 packet-based solution. The ICON interoperates with Multiprotocol Label Switching (MPLS) or Carrier Ethernet-based core networks to provide a hardened edge device for mission-critical applications.
The ICON provides the communications infrastructure for complete end-to-end solutions and complex applications, including:
Transmission Line Protection—Implement current differential protection and direct transfer trip schemes with SEL relays. Communicate between relays with IEEE C37.94 circuits carried over an SEL ICON 2.4 Gbps fiber-optic link. Apply the ICON Transfer Trip (TTM) Module to sense or assert contact closures for pilot protection schemes. The ICON network monitors and reports channel latency in real time. Select the shortest path between terminals as the primary path. This 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 wide-area network (WAN) while maintaining accuracy better than 1 µs. 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 multiple nodes to be used for network timing. With multiple time references, the ICON network is resilient to localized or wide-area GPS outages, equipment failure, and GPS spoofing.
Security Monitoring—Use the ICON to build substation security applications. Connect fence, motion, panel, and door sensors to the SEL-2440 DPAC Discrete Programmable Automation Controller digital inputs, and connect strobes, sirens, and substation lighting to the control outputs. The ICON network can then communicate information back to a supervisory control and data acquisition (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 virtual local-area networks (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. Apply the ICON FXO, FXS, and 4-Wire VF Modules to support legacy analog telephone, PBX, fax, and modem circuits. Accept channelized DS1 circuits from any source, and groom the individual DS0 circuits to terminate anywhere within the network.
Flexible Mapping of Traffic Into TDM Streams—Map traffic from the access modules to dedicated TDM channels within the 2.4 Gbps transport bandwidth for each application. Apply TDM circuits for time-critical applications that require low-latency, deterministic communications. Or, apply Ethernet for services that require the flexibility of IP-based point-to-multipoint communication. This flexibility supports better network traffic management and customization to handle a wide range of applications.
Synchrophasor Communication—Transport synchronized phasor measurements (synchrophasors) to provide a real-time measurement of electrical quantities across a power system. These time-synchronized measurements can be used to analyze and control of the power system. The ICON provides all 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. This allows synchrophasor systems to continue to operate accurately even in the event of a local or system-wide GPS failure.
Application Traffic Isolation—Segregate different traffic types using TDM or Epipes with STS-1 or VT granularity. Dedicate isolated bandwidth to specific services to guarantee latency regardless of other traffic on the network. The Ethernet interfaces support IEEE 802.1Q and port-based VLANs.
Operation in Harsh Environments—The SEL 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.
Security and Critical Infrastructure Protection—Protect critical infrastructure and help achieve NERC CIP compliance with SEL-5051 Network Management System (NMS) Software, which provides 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 internodal traffic and prevents interception.
Optimize Packet Delivery Times With Priority Queues—Manage latency on the Ethernet network with eight priority queues on the drop ports.
The Cube Chassis
Provides flexible mounting options for space-restricted installations, such as pad mounts, repeater sites, and industrial and petrochemical platforms. It is available in four mounting options:
New Ethernet Bridging Access Module (EBAM)
The EBAM combines Ethernet, copper, and fiber connectivity with up to 1 Gbps per port for local-area networking that is immune to electromagnetic interference (EMI).
The Nx64F Module
Supports the IEEE C37.94 single-mode standard, enabling up to 20 km connections to IEDs.
Linear Spur and Subtended Ring Topologies
Allows flexible network design and new node additions at locations with limited fiber connectivity.
The SEL ICON is easy to configure and manage using SEL-5051 NMS Software. With SEL-5051, implement system security management procedures and achieve NERC CIP compliance.
Designed for Extreme Environments
The SEL ICON is designed and built to address demanding communications needs and operate in extreme environments. The ICON is suited for utilities, light-rail and highway transportation, manufacturing, petrochemical plants, pipelines—anywhere dependable communication is required to support critical applications.