v7914-A2-GB20-00 February 1998About This GuideDocument Purpose and Intended AudienceThis guide contains information needed to set up, configure, and operate HotwireModel 7914 T1 SDSL Termination Units. It is designed for central officeinstallation technicians and network engineers who have an understanding of thedeployment of Symmetric Digital Subscriber Loop (SDSL) transmission systemsin a telephone company or private network environment.The Hotwire 7914 may be ordered either as a standalone unit (7914-A1-xxx) oras a nest-mounted card (7914-B1-xxx) that fits in a Hotwire 7900 nest. This guidedescribes the installation and maintenance procedures for the standaloneversion, Model 7914-A1-xxx.Document SummarySection DescriptionChapter 1About Hotwire Model 7914 Termination Units. Describes thefeatures of each version of the Model 7914, and typicalconfigurations.Chapter 2Installing the Unit. Describes how to install the unit andmake connections.Chapter 3Using Terminal and Switchpack Modes. Providesinstructions for connecting a VT100-compatible terminaluser interface. Also describes how to make manualconfiguration changes directly on the board hardware.Chapter 4Customizing DSX-1-Compatible Units. Provides instructionsfor modifying configuration options by using the terminalinterface or DIP switches and jumpers on the board.Chapter 5Customizing V.35/V.11-Compatible Units. Providesinstructions for modifying configuration options by using theterminal interface or DIP switches and jumpers on theboard.