Figure 14: Rear serial port terminals
An additional serial port with D-type presentation is available as an optional board, if required.
The power supply board also provides a rear serial port. The rear serial port (RP1) is an EIA(RS)485
interface, which provides SCADA communication. The interface supports half-duplex communication and
provides optical isolation for the serial data being transmitted and received.
6.6 INPUT MODULE - 2 TRANSFORMER BOARDS
Figure 15: Input Module - 1 transformer board
Chapter 3 - Hardware Design MiCOM P747
42 P747-TM-EN-1
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