P54x/EN FD/La4 Firmware Design
(FD) 9-12
MiCOM P543, P544, P545 & P546
P2083ENa
Language:
Courier always
Physical links:
EIA 232
or
EIA 485 (polarity sensitive)
or
K-Bus (non polarity sensitive)
SK5
SK4
Physical links are s/w selectable
Optional IRIG-B
Courier Port
(EIA232/EIA485)
Not used (EIA232)
Figure 4 Second rear comms board (optional)
2.8 Ethernet board
The optio
nal Ethernet board (ZN0049) has 3 variants which support the IEC 61850 and
DNP3 over Ethernet implementation:
100 Mbits/s Fiber Optic + 10/100 Mbits/s Copper
100 Mbits/s Fiber Optic + 10/100 Mbits/s Copper + modulated IRIG-B
FD
100 Mbits/s Fiber Optic + 10/100 Mbits/s Copper + un-modulated IRIG-B
This card is fitted into Slot A of the relay, which is the optional communications slot. Each
Ethernet card has a unique MAC address used for Ethernet communications. This is printed
on the rear of the card, alongside the Ethernet sockets.
The 100 Mbits/s Fiber Optic ports use ST® type connectors and are suitable for 1300 nm
multi-mode fiber type.
Copper ports use RJ45 type connectors. When using copper Ethernet, it is important to use
Shielded Twisted Pair (STP) or Foil Twisted Pair (FTP) cables, to shield the IEC 61850
communications against electromagnetic interference. The RJ45 connector at each end of
the cable must be shielded, and the cable shield must be connected to this RJ45 connector
shield, so that the shield is grounded to the relay case. Both the cable and the RJ45
connector at each end of the cable must be Category 5 minimum, as specified by the IEC
61850 standard. It is recommended that each copper Ethernet cable is limited to a maximum
length of 3 meters and confined within one bay/cubicle.
When using IEC 61850 communications through the Ethernet card, the rear EIA(RS)485 and
front EIA(RS)232 ports are also available for simultaneous use, both using the Courier
protocol.
The physical layout of the Ethernet board is shown in Figure 5.
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