Diagnostics | Multi-Tech Systems MT56DSU-S guide

Chapter 4 - Diagnostics

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Multi-Tech Systems MT56DSU-S manual Diagnostics

Contents

User Guide MT56DSU-S Syncronous 56K bps Data Service Unit Revision Date Description Contents Service & Warranty Introduction About This Manual Introduction CSU Functions DescriptionCSU/DSU Basics DSU Functions Features Specifications Front & Back Panel Descriptions Front Panel Front Panel Back Panel Power Connector2 RS232 Connector Line Connector Switch Settings Mode Position Description Switch Settings Shunts Shunts Unpacking & Setup Unpacking Telecom Safety Warnings Back Panel Connections Setup V.35 Shunt Diagnostics Loopback Test Loopback Test Diagram DSU Loopback Test Line Loopback Test DSU Back-to-Back Test DSU Back-to-Back Test Diagram Service & Warranty Warranty Multi-Tech Systems, Inc. Warranty & Repairs Policies2 U.S. and Canadian Customers International Distributors International Customers outside U.S.A. and Canada Repair Procedures for International Customers Repair Procedures for U.S. and Canadian CustomersRepairs Internet Site Technical Support Appendix DDS Point-To-Point Application Appendix a Application ExamplesIntroduction Local Area Data Set Application Figure A-3. DDS Multipoint Polled Application DDS Multipoint Polled Application RJ-48 Connector Appendix B Interface Signals and Connector Pinouts Pin Description Signal DB25S Connector Pin Description DB25S Connector with V.35 Interface Build Instructions Loopback Cable MTS P/N Back-To-Back Cable MTS P/N Figure B-7. Back-toBack Cable Connector FCC Regulations for Telephone Line Interconnection Appendix C Regulatory Information Canadian Limitations Notice S000327A