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Substation Gateways and RTUs  
Digital Energy Substation Automation Gateway & RTUs
D20MX Substation Controller
The Multilin D20MX Substation Controller is designed to execute communications and energy management applications for the monitoring and control of electrical substations. The D20MX is backwards compatible with earlier D20 / D200 RTU chassis and installed accessories to enable compliance with NERC-CIP requirements while providing a cost-effective option for extending the life of aging D20/D200 systems.

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D400 Advanced Substation Gateway
GE’s Multilin D400™ is a secure, substation-hardened gateway that collects metering, status, event, and fault report data from serial or LAN based Intelligent substation devices. The D400 summarizes data from the substation devices and makes it available locally/remotely through a standard secure web browser (HTTPS).

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D.20 RIO Distributed I/O Controller
The Multilin D.20™ RIO Distributed I/O Controller is a stand-alone, small form factor device designed to provide distributed I/O capabilities for easy connection to the D400 gateway though any point in the substation LAN. The D.20 RIO provides an interface to the Multilin D20 Series of I/O modules.

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D25 Substation Controller
GE’s D25 is a flexible, modular, and upgradable automation controller, suitable for both large and small Substation Automation projects in either new or retrofit situations. The D25 provides the tools and flexibility necessary to create customized automation and control applications including; communications & data concentrator, automation controller, metering & sequence of events fault recording, and transformer monitoring & control.

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iBox Serial Substation Controller
The iBox Controller combines advanced functionality, multiple communication ports and local I/O in a small footprint suitable for both pole-top or pad-mount feeder automation and Substation Automation applications.

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D20/D200 Substation Controllers
The D20/D200 substation controllers offer an industry leading design embedded with high value Substation Automation applications that provide cost savings, increased reliability, and improved operational efficiencies in your substations. The D20/D200 devices act as the gateway to SCADA master stations for IEDs in the station, or for downstream substations or feeders. A large protocol library facilitates communication to most existing substation devices for improved visibility and remote control.

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DART Distribution Automation Remote Terminal
The DART, a pioneer of transducer-less feeder-resident IEDs, has proven to be reliable in some of the harshest conditions on the planet. The entire product family is composed of devices that operate from -40°C to +80°C at 100% humidity without the need for any environmental control.

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The FARADAY tMEDIC system combines the strengths of a number of GE technologies to form an integrated, scalable transformer monitoring and analysis system. Placing this highly intelligent system at a transformer adds new functionality and value to substation operations.

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