1-1CHAPTER 1INTRODUCTIONWelcome to the Cabletron Systems MRXI-22 and MRXI-24 10BASE-THUB User’s Guide. This manual provides installation instructions andpresents reference information for the MRXI-22 and MRXI-2410BASE-T Hubs.Note: Throughout this manual the term MRXI is used to cover both theMRXI-22 and MRXI-24 unless otherwise specified.1.1 USING THIS MANUALRead through this manual completely to familiarize yourself with itscontent and to gain an understanding of the features and capabilities ofthe MRXI. A general working knowledge of Ethernet and IEEE 802.3type data communications networks and their physical layer componentswill be helpful when installing the MRXI.Chapter 1, Introduction, outlines the contents of this manual, brieflydescribes features of the MRXI, and concludes with a list of relatedmanuals.Chapter 2, Requirements/Specifications, describes installationrequirements, network guidelines, and MRXI operating specifications.Chapter 3, Installation, contains instructions for installing your MRXIand connecting it to the network using the various media types.Chapter 4, Testing and Troubleshooting, contains procedures for testingthe MRXI after installation, a description of the LANVIEW ™ LEDs, andexplains the use of the front panel LCD display.Chapter 5, Local Management, describes how to access LocalManagement. It also describes each of the Local Management screens andthe available commands.