Ethernet Rj-45 Front Connection; Ethernet Rear Connections; Serial Rear Connection - ABB RELION REC615 Technical Manual

1MRS758755 C
13.4.1

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.
13.4.2

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 cable CAT 5e is used with the RJ-45 connector and an optical multi-
mode cable (≤2 km) with the LC type connector.
In addition, communication modules with multiple Ethernet connectors enable the
forwarding of Ethernet traffic. The variants include an internal switch that handles
the Ethernet traffic between an protection relay and a station bus. In this case, the
used network can be a ring or daisy-chain type of network topology. In loop type
topology, a self-healing Ethernet loop is closed by a managed switch supporting
rapid spanning tree protocol. In daisy-chain type of topology, the network is bus
type and it is either without switches, where the station bus starts from the station
client, or with a switch to connect some devices and the protection relays of this
product series to the same network.
The protection relay's default IP address through rear Ethernet port is 192.168.2.10
with the TCP/IP protocol. The data transfer rate is 100 Mbps.
REC615 & RER615
Technical Manual
Always install dust caps on unplugged fiber connectors.
If contaminated, clean optical connectors only with fiber-optic cleaning
products.
The speed of the front connector interface is limited to 10 Mbps.
Protection relay's physical connections
837