Station Communication Rear Port; Optical Serial Rear Connection; Eia-485 Serial Rear Connection - Hitachi Relion 650 Series Technical Manual

1MRK 511 557-UEN Rev. A
Usually this port is used only for temporary connection, thus no permanent wiring is required. Events,
setting values and all input data such as operation records and waveform 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 IED through this port is 10.1.150.3.
The front port supports TCP/IP protocol. A standard Ethernet CAT 5 crossover cable with RJ-45
connector is used with the front port.
15.4.2

Station communication rear port

The IED's communication module is provided with an optical LC connector, X1/LAN1 A, designed for
Ethernet station bus communication. A second identical connector, X2/LAN1 B, can optionally be
used for redundant communication via PRP.
The default IP address of the IED through the rear Ethernet port is 192.168.1.10. The communication
speed is 100 Mbps for the 100BASE-FX LC interface.
Table 411: Station bus
Connector
X1
X2
For specification of the optical fibers to be used, see
15.4.3

Optical serial rear connection

The optical serial communication port (X9) is not used in Switchsync PWC600.
15.4.4

EIA-485 serial rear connection

The communication module follows the EIA-485 standard and is intended to be used in multi-point
communication.
Table 412: EIA-485 and IRIG-B connections
Connector
X8
X8
X8
X8
X8
X8
Table continues on next page
Technical Manual
Pin Signals
All LAN1 A
All LAN1 B
Always keep the factory supplied cap on the Tx output of port X9, to prevent
exposure to laser radiation.
Pin Signals
1 RS485_GNDC
2 RS485_RXTERM
3 RS485_RX +
4 RS485_TXTERM
5 RS485_SIGGND
6 IRIG-B -
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Description
Station bus
Redundant station bus, optional
Section 17.8.
Description
RS485 ground through capacitance
Termination for RS485 receiver
RS485 receiver
Termination for RS485 transmitter
Signal ground for RS485
Time synchronization input
Section 15
IED physical connections
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