Owner`s manual

MT56DSU2 Owner’s Manual
82017502 3
Table of Contents
CHAPTER 1-INTRODUCTION AND DESCRIPTION
1.1 Introduction 5
1.2 About This Manual 5
1.3 Description 5
1.4 CSU/DSU Basics 6
1.5 Features 7
1.6 FCC Regulations for Telephone Line Interconnection 8
1.7 Specifications 9
CHAPTER 2- HARDWARE INSTALLATION
2.1 Introduction 10
2.2 Default DIP Switch Settings 10
2.3 Changing Default Settings 11
2.4 Installation Procedure 12
CHAPTER 3- OPERATION
3.1 Introduction 14
3.2 Options 14
3.2.1 Data Rate 14
3.2.2 Async/Sync 14
3.2.3 Anti-Streaming 15
3.2.4 Elastic Store 15
3.2.5 System Status 15
3.2.6 Circuit Assurance 15
3.2.7 Clocking (Internal, External orDDS) 15
3.2.8 RTS Forced On 16
3.2.9 DSR Forced On 16
3.2.10 Async Word Length (9/10/11 Bit) 16
3.2.11 Normal/Diagnostics 16
3.3 LED Indicators 16
3.4 Functions 17
3.4.1 LADS Applications 17
3.4.2 Off-Net Extension Applications 17
CHAPTER 4- TROUBLESHOOTING
4.1 Introduction 18
4.2 LED Indicators 18
4.2.1 SD Indicator 18
4.2.2 RD Indicator 18
4.2.3 CD Indicator 18
4.2.4 56K Indicator 19
4.2.5 19.2 Indicator 19
4.2.6 96 Indicator 19
4.2.7 48 Indicator 19
4.2.8 CTS Indicator 19
4.2.9 RTS Indicator 20
4.2.10 NS Indicator 20
4.2.11 005 Indicator 20
4.2.12 TM Indicator 20
4.3 Diagnostic Tests 20
4.3.1 Local Loopback Test 20
4.3.2 Digital Loopback Test 21
4.3.3 Digital Loop Test With Test Pattern Test 22
4.3.4 Test Pattern Test 22
4.3.5 DSU Loopback Test 23
4.3.6 DSU Back-to-Back Test 23
CHAPTER 5- SERVICE, WARRANTYAND TECH SUPPORT
5.1 Service 24
5.2 Limited Warranty 24
5.3 Tech Support 25
5.4 Recording DSU Information 25
APPENDICES
Appendix A — Application Examples 26
Appendix B — Interface Signals and Connector Pinouts 30
GLOSSARY 35