Auxiliary Equipment - GE D20 Technical Overview

D20/D200 Technical Overview
GE Grid Solutions
• D20AC – Up to 15 direct AC inputs and 1 DC analog input
For a detailed description, see section 2.4, I/O Peripheral.
D20 I/O peripherals are available in standard and high-voltage versions. The high-voltage
versions of the peripherals are electrically more robust than the standard versions, and meet a
broader range of industry standards. These standards, which include IEC standards for
electrostatic discharge, RFI susceptibility, electrical stress, and vibration, are described in A.
Specifications and Supported Standards.

1.8 Auxiliary Equipment

GE Grid Solutions offers a selection of auxiliary equipment to support specific substation
applications, including:
• Interposing relay panels for applications requiring heavy-duty control ratings
• Universal protocol converter to interface with devices that use synchronous protocols
• Data display panel to view any data point on a built in LCD screen
• Fiber optic interfaces
For more information, see section 2.10, Auxiliary Equipment.
1.9 Communications
The D20/D200 interfaces with peripherals and external devices over several types of
communications facilities:
• RS-232
• RS-485
• D.20 Link
• Ethernet
For a detailed description, see section 2.7, Communications.
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GE Information PRPI-019-3.00-10