Multi-Tech Systems MT56DSU-S manual Introduction, About This Manual

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Chapter 1 - Introduction

1.1Introduction

The Multi-Tech Systems MultiDSU, model number MT56DSU-S is a synchronous 56 Kbps data service unit (DSU). As a combined DSU and Channel Service Unit (CSU), it provides a direct connection to the DATAPHONE® Digital Service (DDS) network. The MT56DSU-S connects a synchronous Data Terminal Equipment (DTE) device to remote equipment using DDS network lines at 56 Kbps speeds for point-to-point and multi-point service.

Figure 1-1. MultiDSU Modem

1.2About This Manual

Chapter 1 - Introduction contains an introduction to the MT56DSU-S product and its features and functions.

Chapter 2 - Front and Rear Panel Descriptions provides front panel LED descriptions and rear panel connector descriptions, DIP-switch settings, and an RS232/V.35 shunt description.

Chapter 3 - Unpacking and Setup provides unpacking, safety warnings, setup procedures, and how to change the shunt from the default RS232 position to the V.35 position.

Chapter 4 - Diagnostic Testing explains how to set up and run a diagnostic test.

Chapter 5 - Service and Warranty provides instructions on getting service for your MultiDSU at the factory, a statement of the limited warranty, information about our user bulletin board service, and space for recording information about your MultiDSU prior to calling Multi-Tech's Technical Support. The final three sections explain how to use our bulletin board service (BBS), and get support through CompuServe and the Internet.

Appendix A - Application Examples illustrates several DSU/CSU uses that may help in understanding your particular installation site.

Appendix B - Interface Signal and Connector Pinouts lists the various electronic signals and connector pinouts related to the MT56DSU-S.

Appendix C - Regulatory Information

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Contents MT56DSU-S Syncronous 56K bps Data Service Unit User GuideRevision Date Description Contents Service & Warranty Introduction Introduction About This ManualDSU Functions DescriptionCSU/DSU Basics CSU FunctionsFeatures Specifications Front & Back Panel Descriptions Front Panel Front PanelLine Connector Power Connector2 RS232 Connector Back PanelSwitch Settings Switch Settings Mode Position DescriptionShunts ShuntsUnpacking & Setup Telecom Safety Warnings UnpackingSetup Back Panel ConnectionsV.35 Shunt Diagnostics Loopback Test Diagram Loopback TestLine Loopback Test DSU Loopback TestDSU Back-to-Back Test Diagram DSU Back-to-Back TestService & Warranty Multi-Tech Systems, Inc. Warranty & Repairs Policies Warranty2 U.S. and Canadian Customers International Customers outside U.S.A. and Canada International DistributorsRepair Procedures for U.S. and Canadian Customers Repair Procedures for International CustomersRepairs Technical Support Internet SiteAppendix Local Area Data Set Application Appendix a Application ExamplesIntroduction DDS Point-To-Point ApplicationDDS Multipoint Polled Application Figure A-3. DDS Multipoint Polled ApplicationAppendix B Interface Signals and Connector Pinouts RJ-48 ConnectorDB25S Connector Pin Description SignalDB25S Connector with V.35 Interface Pin DescriptionLoopback Cable MTS P/N Build InstructionsFigure B-7. Back-toBack Cable Connector Back-To-Back Cable MTS P/NAppendix C Regulatory Information FCC Regulations for Telephone Line InterconnectionCanadian Limitations Notice S000327A
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