7900-A2-GB21-20 December 2001 viiAbout This GuideDocument Purpose and Intended AudienceThis guide contains information needed to set up, configure, and operate HotwireTime Division Multiplexer Symmetric Digital Subscriber Line (TDM SDSL)Standalone Termination Units, Models 7974-A2, 7975-A2 and 7976-A2, and isintended for installers and operators.New Features for this ReleaseThis version of theHotwire TDM SDSL Standalone Termination Units, Models7974-A2, 7975-A2, and 7976-A2, User’s Guide adds new payload rates for theModel 7976-A2.Document SummarySection DescriptionChapter 1,About StandaloneTDM SDSL Termination UnitsDescribes the unit’s features and capabilities.Chapter 2,Using theAsynchronous Terminal InterfaceProvides instructions for accessing the user interfaceand navigating through the screens.Chapter 3,Initial Startup andConfigurationProvides procedures for setting up the user interfaceand for configuring the unit using the asynchronousterminal interface.Chapter 4,Configuring the UnitUsing the Internal SwitchesProvides procedures for configuring the unit using theinternal switches instead of the asynchronousterminal interface.Chapter 5,IP Addressing Provides information and examples regarding IPaddresses.Chapter 6,Security Presents procedures for creating a login, setting theeffective access levels, and controlling SNMPaccess.