14.3
Communication connections
The front communication connection is an RJ-45 type connector used mainly for
configuration and setting.
Depending on order code, several rear port communication connections are available.
•
Galvanic RJ-45 Ethernet connection
•
Optical LC Ethernet connection
•
ST-type glass fibre serial connection
•
EIA-485 serial connection
•
EIA-232 serial connection
14.3.1
Ethernet RJ-45 front connection
The protection relay is provided with an RJ-45 connector on the LHMI. The connector is
mainly 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 the 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.
14.3.2
Ethernet rear connections
The Ethernet communication module is provided with either galvanic RJ-45 connection
or optical multimode LC type connection depending on the product variant and selected
Section 14
1MRS240050-IB C
Protection relay's physical connections
626
REF615R
Technical Manual
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