Standard Ethernet Communication - GE P24DM Technical Manual

Chapter 16 - Communications
4

STANDARD ETHERNET COMMUNICATION

The Ethernet interface is required for either IEC 61850 and/or DNP3 over Ethernet (protocol must be selected at
time of order). With either of these protocols, the Ethernet interface also offers communication with MiCOM S1 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 LC
connectors.
The device can also be connected to either a 10Base-T or a 100Base-TX Ethernet hub or switch using the RJ45
port. The port automatically senses which type of hub is connected. Due to noise and interference reasons, this
connection type is only recommended for short-term connections over a short distance.
The pins on the RJ45connector are as follows:
Pin
1
2
3
4
5
6
7
8
310
Signal name
TXP
TXN
RXP
-
-
RXN
-
-
Signal definition
Transmit (positive)
Transmit (negative)
Receive (positive)
Not used
Not used
Receive (negative)
Not used
Not used
P24xM-TM-EN-2.1
P24xM