ABB Relion 611 Series, Technical Manual

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• Galvanic RJ-45 Ethernet connection
• Optical LC Ethernet connection
• EIA-485 serial connection
Fibre optic equipment and cables are very sensitive to dust and dirt.
Handle them with care. If the fibre is disconnected from the modem,
set the protective hood on the transmitter/receiver. Keep the
protective hood on during transportation.
If contaminated, clean optical connectors with a cleaning stick.
Recommended cleaning fluids are methyl alcohol, ethyl alcohol,
isopropyl alcohol or isobutyl alcohol.
11.4.1 Ethernet RJ-45 front connection
The protection relay is provided with an RJ-45 connector on the LHMI. The connector
is intended for configuration and setting purposes. The interface on the PC side has to
be configured in a way that it obtains the IP address automatically. There is a DHCP
server inside protection relay for the front interface only.
The events and setting values and all input data such as memorized values and
disturbance records can be read via the front communication port.
Only one of the possible clients can be used for parametrization at a time.
• PCM600
• LHMI
• WHMI
The default IP address of the protection relay through this port is 192.168.0.254.
The front port supports TCP/IP protocol. A standard Ethernet CAT 5 crossover cable
is used with the front port.
The speed of the front connector interface is limited to 10 Mbps.
11.4.2 Ethernet rear connections
The Ethernet station bus communication module is provided with either galvanic
RJ-45 connection or optical multimode LC type connection, depending on the product
variant and the selected communication interface option. A shielded twisted-pair
1MRS757454 D
Section 11
Protection relay's physical connections
611 series 503
Technical Manual