ABB IEC 60870-5-103 Communication Protocol Manual page 21

Relion 670 series

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1MRK 511 394-UEN A

670 series 2.2 IEC

Communication protocol manual

When communicating locally in the station using a Personal Computer (PC) or a

Remote Terminal Unit (RTU) connected to the Communication and processing

module, the only hardware needed is optical fibres and an opto/electrical converter

for the PC/RTU, or a RS-485 connection depending on the used IED

communication interface.

IEC 60870-5-103 overview

Section 2

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