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7520-A2-GB20-20 May 1998
About This Guide
Document Purpose and Intended Audience
This guide contains information needed to set up, configure, and operate the
Model 7520 DSU and is intended for installers and operators.
Document Summary
Section Description
Chapter 1 About the DSU. Describes the DSU features and shows
examples of typical configurations.
Chapter 2 Using the Asynchronous Terminal Interface. Provides
instructions for accessing the user interface and navigating
the screens.
Chapter 3 Customizing the DSU. Provides procedures for setting up
the user interface and DSU configuration.
Chapter 4 Monitoring the DSU. Describes monitoring the DSU using
the LEDs, DSU status, and network statistics.
Chapter 5 Testing. Provides details about available tests and test
setup.
Chapter 6 Messages and Troubleshooting. Provides information on
device messages and troubleshooting, and procedures for
resetting the unit and viewing unit identification information.
Appendix A Configuration Option Tables. Contains all configuration
options, default settings, and possible settings.
Appendix B Worksheets. Contains all the configuration options, default
settings, and possible settings to use for planning.
Appendix C Cables and Pin Assignments. Contains connector and
interface information.
Appendix D Technical Specifications. Contains physical and regulatory
specifications of the DSU.