5

CONTENTS

Contents
Chapter Page
1.Specifications .....................................................................................................2
2.Introduction.......................................................................................................3
2.1 Overview.......................................................................................................3
2.2 How to Use This Manual.............................................................................3
2.3 Features........................................................................................................4
3.Operation ...........................................................................................................5
3.1 Overview.......................................................................................................5
3.2 Connecting the Unit....................................................................................5
3.3 Powering Up the Unit..................................................................................7
3.4 Controls and Indicators...............................................................................7
3.5 Modes of Operation.....................................................................................8
4.Test Procedures..................................................................................................9
4.1 Overview.......................................................................................................9
4.2 Comprehensive Troubleshooting Procedure..........................................11
4.3 Check Power...............................................................................................14
4.4 Check Loop................................................................................................15
4.5 Passive Bus—Check Terminations............................................................19
4.6 Pair Reversal...............................................................................................22
4.7 Monitor.......................................................................................................26
5.Technical Reference........................................................................................28
5.1 Power-Source Indicators............................................................................28
5.2 Activation/Deactivation Modes................................................................29
5.3 AC Impedance ...........................................................................................32
5.4 DC Continuity............................................................................................32
5.5 Speaker.......................................................................................................34
Appendix: Maintenance.....................................................................................35