Connection to the Ethernet Network with IFE Server and IFE/ EIFE Interfaces

Introduction

Connect intelligent modular units to the Ethernet network with one of the following interfaces:

• IFE Ethernet interface for one circuit breaker

• IFE Ethernet switchboard server

• EIFE embedded Ethernet interface for one MasterPact MTZ drawout circuit breaker

General Rules for Ethernet Cable

10Base-T/100Base-T Ethernet cable uses only two pairs of the four twisted pairs of wires that compose an Ethernet cable. These two pairs are orange (pins 1 and 2) and green (pins 3 and 6).

An Ethernet line cable must be screened (overall braided screen) and also screened by a foil (SF/UTP, that is, shielded foiled twisted pair).

The rules for standard Ethernet topology are as follows:

• There is no maximum number of devices per network.

• Transmission rate: 10–100 Mbps.

• Maximum permitted length between two IFE interfaces or between an EIFE and an IFE interface (in case of daisy chain): 100 m (328 ft).

• Cable type: Category 5e SFTP (shielded foiled twisted pair) or Category 6 SFTP.

Ethernet RJ45 Pin Connection

RJ45 connector	Pin number	Pair number	Wire color
	1	Pair 1	White-orange
	2	Pair 1	Orange
	3	Pair 2	White-green
	4	Pair 3	Reserved
	5
	6	Pair 2	Green
	7	Pair 4	Reserved
	8

Ethernet Connection on IFE Interface or IFE Server

Ethernet Connection on EIFE Interface

General Wiring Recommendations

• Do not bend or damage the cables:

  • Minimum bending radius is 10 times the cable diameter.

  • Avoid sharp angles of paths or passages of the cable.

• Identify the logical name and the logical address of each device.

Ethernet Connection Linking Two Pieces of Electrical Equipment

Two remote pieces of electrical equipment can be linked by an Ethernet connection, regardless of the distance or the ground equipotentiality between the two pieces of electrical equipment. In this case, the Modbus-SL network is contained within electrical equipment.

The following figure shows an Ethernet link connecting two pieces of electrical equipment, via IFE servers.

A	IFE server

Connection of the IFE server to the Modbus-SL network inside the electrical equipment is shown in detail in the wiring diagram for Ethernet server.