4 STANDARD ETHERNET COMMUNICATION
The type of Ethernet board depends on the chosen model. The available boards and their features are described in
the Har
dware Design chapter of this manual.
The Ethernet interface is required for either IEC 61850 or DNP3 over Ethernet (protocol must be selected at time of
order). With either of these protocols, the Ethernet interface also offers communication with the settings
application software for remote configuration and record extraction.
Fibre optic connection is recommended for use in permanent connections in a substation environment, as it offers
advantages in terms of noise rejection. The fibre optic port provides 100 Mbps communication and uses type
BFOC 2.5 (ST) connectors. Fibres should be suitable for 1300 nm transmission and be multimode 50/125 µm or
62.5/125 µm.
Connection can also be made to a 10Base-T or a 100Base-TX Ethernet switch using the RJ45 port.
4.1 HOT-STANDBY ETHERNET FAILOVER
This is used for products which are fitted with a standard Ethernet board. The standard Ethernet board has one
fibr
e and one copper interface. If there is a fault on the fibre channel it can switch to the copper channel, or vice
versa.
When this function detects a link failure, it generates the NIC Fail Alarm. The failover timer then starts, which has a
settable timeout. During this time, the Hot Standby Failover function continues to check the status of the other
channel. If the link failure recovers before the failover timer times out, the channels are not swapped over. If there
is still a fail when the failover timer times out and the other channel status is ok, the channels are swapped over.
The Ethernet controller is then reconfigured and the link is renegotiated.
To set the function, use the IEC 61850 Configurator tool in the Settings Application Software.
Chapter 17 - Communications P54A/B/C/E
348 P54xMED-TM-EN-1
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