INSTALLATION
183
XMR-x relays are supplied with two redundant Ethernet ports
[1]
with HW-SW switching command
selectable between TX (RJ45) + FX (optical fibre), with ModBus / TCP or IEC 61850 protocol.
The following variants are available:
• Two TX ports with RJ45 connector for copper network
• Two FX ports for optical fiber network
• One FX + RS485 port
• One TX + RS485 port
• One RS485 port
The connections to the TX port (RJ45) must be made using a category shielded cable FTP Cat.5e or
higher.
Note 1 In normal conditions the primary port is operative, while the secondary is activated only in case of failure of the primary one or with HW-SW
switching command .
Connector TX (RJ45 copper)
Connector FX (Optical Fibre)
RX
TX
Ethernet
RS485
7
6
A+
B-
FTP shielded cable Cat.5e or higher
B-
A+
RS485
XMR-T EQUIPMENT MANUAL
Ed. 2.9 - 02/2021
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