GE Consumer & Industrial

Multilin

UR Switch Module

Ethernet Communications Switch

QuickStart Guide

QS.1 Introduction to Twisted Pair and Fiber Optic Ethernet

LANs

This section will provide a brief review of modern Ethernet media, before covering the steps used to configure the Multilink switch for typical protective relaying applications. For this discussion the IP addresses that will be used, are in the range of 3.94.247.1 to 3.94.247.254 using a subnet mask of 255.255.252.0. This same range of addresses can be used for testing purposes but you should contact your IT support group for a valid range of addresses to be used for your particular application.

QS.1.1 Ethernet Physical Layer: Twisted Pair Copper vs Fiber Optic

Today, the two most popular physical layer standards for Ethernet are twisted pair copper cable and fiber optic cable. Twisted pair copper cable is easier to terminate, and has a lower installation cost, but is susceptible to electrical noise. In addition, a single run of twisted pair cable is distance-limited.

Fiber optic media can typically be applied over much longer distances, is immune to electrical noise, and, while being more difficult to terminate, the availability of pre- fabricated cables has dramatically reduced the complexity of installation within the substation.

UR SWITCH MODULE – QUICKSTART GUIDE

QS–1

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GE QS24 UR quick start QS-1