COMSPHERE 3600 Series Data Service Unitsviii July 1999 3610-A2-GB91-90Appendix C explains when the DSU issues a message.The following message types are explained: commandprogress and error messages; device, expanded, andsubnetwork health and status messages; point-to-point andmultipoint dial backup messages; TDM, MCMP, anddigital bridge configuration error messages.Appendix D provides details regarding async terminaloperation.Appendix E provides DSU cables related to NMS.Appendix F provides pin assignments for DSUconnectors, cables, and its hubbing device; Appendix Gprovides troubleshooting information for the DSU and itsoptions.Appendices H through K provide NMS information.Appendix L provides a complete equipment list for theDSU and its options.The Glossary defines some of the acronyms andproduct-specific terms used in connection with the3600 Series DSU and its options.Related DocumentsBasic DSU product documentation includes thefollowing:3610-A2-GB46 COMSPHERE 3600 SeriesData Service Units, Models3610 and 3611, User’s Guide3610-A2-GB48 COMSPHERE 3600 SeriesData Service Units, Models3610 and 3611, Time DivisionMultiplexer, MultichannelMultipoint, and Digital BridgeOptions, User’s GuideSupplementShould more detail about how the DSU operates berequired, the following additional documentation also maybe ordered:3610-A2-GB41 COMSPHERE 3600 SeriesData Service Units, Models3610 and 3611, Time DivisionMultiplexer, MultichannelMultipoint, and Digital BridgeOptions, Applications Guide3610-A2-GL10 COMSPHERE 3600 SeriesData Service Units, Models3610 and 3611, Reference Card3610-A2-GN32 COMSPHERE 3600 SeriesData Service Units, Models3610 and 3611, Dial BackupModule and SNA DiagnosticInterface Options, ApplicationsGuideOther product documentation includes the following:3000-A2-GA31 COMSPHERE 3000 SeriesCarrier, Installation Manual3000-A2-GB41 COMSPHERE –48 VdcCentral Office Power Unit,Installation Guide3610-A2-GB42 COMSPHERE 3600 SeriesData Services Units, Models3610 and 3611, SecondaryChannel ApplicationsSupplement6700-A2-GB41 COMSPHERE 6700 SeriesNetwork Management System,User’s Guide, SecurityManager Feature Supplement6700-A2-GY31 COMSPHERE 6700 SeriesNetwork Management System,User’s Guide6800-A2-GB31 COMSPHERE 6800 SeriesNetwork Management System,Communications ProductsSupport Command ReferenceManual999-100-1961S DATAPHONE II 2600 SeriesData Service Units, User’sManualContact your sales or service representative to orderadditional product documentation.Paradyne documents are also available on the WorldWide Web at www.paradyne.com. Select Library →Technical Manuals.