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Paradyne Hotwire 7984 Telco-Initiated Payload Loopback, Telco-Initiated Remote Line Loopback

Models: Hotwire 7984

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Testing

Telco-Initiated Payload Loopback

The Hotwire 7984 Standalone Termination Unit supports payload loopback as specified in AT&T TR 54016 and ANSI T1.403. A Telco-initiated line loopback loops the received signal on the DSX-1 interface back to the DSX-1 interface. Framing, CRC, and FDL bits are regenerated at the point of the loopback, and BPVs are removed.

DSL

Port All Ones

CAP

Transceiver Framer

T1
LIU	DSX-1	Telco
	Port
Framer
	99-16253

Telco-Initiated Remote Line Loopback

If Remote Telco Loopback is enabled, a Telco-initiated line loopback loops received data at the remote unit and passes it back to the Telco through the local unit.

The following figure shows the data flow for a remote Telco-initiated payload loopback.

DSX-1 Port

AIS

	Remote			Local
T1	CAP	CAP	CAP	CAP	T1
LIU			DSL		LIU	DSX-1	Telco
						Port
Framer	Framer	Transceiver	Transceiver	Framer	Framer
					98-16109

5-10

February 1999

7984-A2-GB20-10

Page 66

Image 66

Paradyne Hotwire 7984 manual Telco-Initiated Payload Loopback, Telco-Initiated Remote Line Loopback, 5-10

Contents

USERS GUIDE HOTWIRE M/HDSL STANDALONE TERMINATION UNITWITH DSX-1 INTERFACE Document No. 7984-A2-GB20-10Printed in U.S.A Warranty, Sales, and Service InformationCopyright E 1999 Paradyne Corporation All rights reserved TrademarksImportant Safety Instructions EMI Warnings To Users of Digital Apparatus in Canada2 Using the Asynchronous Terminal Interface Contents1 About the Hotwire 7984 Standalone Termination Unit About This GuideInitial Startup and Configuration Monitoring the UnitContents 7 Security 5 Testing6 Messages and Troubleshooting 8 IP AddressingB Standards Compliance for SNMP Traps A Configuration Option TablesD Technical Specifications Glossary Index C Cables and Pin Assignmentsinstructions for accessing the user interface and navigating 7984 Termination Units features and capabilitiesUsing the Asynchronous Terminal Interface. Provides Initial Startup and Configuration. Provides procedures forCables and Pin Assignments. Contains connector and Configuration Option Tables. Contains all configurationoptions, default settings, and possible settings Technical Specifications. Contains physical and regulatoryAbout the Hotwire Standalone Termination Unit Hotwire 7984 Termination Unit FeaturesM/HDSL Overview H Local Management standalone unit. Provides local management using a Network Configuration Figure 1-1. Sample M/HDSL ConfigurationsFigure 1-3. Hotwire 7984 Standalone Termination Unit Rear Panel Front Panel LED Status IndicatorsFigure 1-2. Hotwire 7984 Standalone Termination Unit Front Panel Rear Panel Interface ConnectionsManagement Information Base MIB Support Figure 1-4. HDSL SNMP ConfigurationSNMP Management Capabilities SNMP Trap SupportAbout the Hotwire 7984 Standalone Termination Unit FebruaryUsing the Asynchronous Terminal Interface User Interface AccessCommunication Port Settings Initiating an ATI Session Select Using the Asynchronous Terminal Interface Main Menu → Configuration → Load Configuration From → Network Screen Work AreasInterface Options Keyboard Keys ProcedureNavigating the Screens PressAnd press Enter to Screen Function KeysFor the screen function SelectSwitching Between Screen Work Areas ExampleProcedure Ending an ATI Session Procedure2-10 Using the Asynchronous Terminal InterfaceFebruary Initial Startup and Configuration Overview+24 Vdc Power Supply Pinouts Connecting Power to the UnitConnecting the Unit to an Optional External +24 Vdc Power Source ProcedureProcedure Connecting to the NetworkConnecting to a System Terminal ProcedureEntering Identity Information Main Menu → Control → ChangeProcedure H Referring to Appendix A, Configuration Option Tables Choosing a Configuration ModeConfiguring the Unit Using the Configuration Menus Configuration Option AreaConfiguring the Unit Using the Internal Switches HANDLING PRECAUTIONS FOR STATIC-SENSITIVE DEVICESProcedure Switchpack Locations Switchpack S1 & S298-16073a Switch # Switchpack DefinitionsTable 3-1. Switchpack S1 Definitions Allows you toSwitch Position Table 3-2. Switchpack S2 DefinitionsTable 3-3. DSL Line Rate, Switches 3±5 on Switchpack S2 3-103-11 Accessing and Displaying Configuration OptionsMain Menu → Configuration Load Configuration From If you selectMain Menu → Configuration → Default Factory Configuration Edit/DisplayMain Menu → Configuration → Current Configuration To Access the3-13 Configuration LoaderMain Menu → Configuration → Configuration Loader Procedure3-14 Completed successfullyProcedure Saving Configuration Options3-15 If you selectMain Menu → Control → Download Code Download Code3-16 ProcedureMonitoring the Unit What to MonitorViewing System and Test Status Main Menu → Status → System and Test StatusMessage Health and StatusTable 4-1. Health and Status Messages 1 of What Message IndicatesWhat Message Indicates Table 4-1. Health and Status Messages 2 ofMessage What To DoCall your service Self-Test ResultsTable 4-2. Self-Test Results Messages MessageTest Status Message Test StatusTable 4-3. Test Status Messages MeaningViewing Network Error Statistics Main Menu → Status → Performance → Network Error StatisticsH SES Severely Errored Seconds Seconds during which more than Contains Viewing Network Performance StatisticsThis Field Main Menu → Status → Performance → Network Performance StatisticsThis Field ContainsViewing DSX-1 Performance Statistics 4-10Main Menu → Status → Performance → DSX-1 Performance Statistics 4-11 This FieldContains Viewing 7984 Standalone Termination Unit LEDs 4-12Main Menu → Status → Display LEDs Type 7984 Standalone Termination Unit LEDs4-13 LED is4-14 Monitoring the UnitFebruary Main Menu → TestingAccessing the Test Menu SelectRunning Network Tests Main Menu → Test → Network & DSX TestsLine Loopback ProcedureT1 to V.35 Repeater Loopback Repeater LoopbackT1 to T1 Repeater Loopback ProcedureDTE Loopback ProcedureSend Remote Line Loopback ProcedureSend and Monitor ProcedureMain Menu → Test → Device Tests Device TestsLamp Test ProcedureTelco-Initiated Line Loopback Ending an Active TestTelco-Initiated Tests Activation and DeactivationTelco-Initiated Payload Loopback Telco-Initiated Remote Line Loopback5-10 Messages and Troubleshooting H Configuring SNMP Traps H Device Messages H TroubleshootingOverview Configuring SNMP Traps Main Menu → Configuration → Load Configuration From →Management and Communication Options → SNMP Traps Options Device Message Device MessagesTable 6-1. Device Messages 1 of What Message IndicatesDevice Message Table 6-1. Device Messages 2 ofMessages and Troubleshooting What Message IndicatesSymptom TroubleshootingTable 6-2. Troubleshooting 1 of SolutionsSymptom Table 6-2. Troubleshooting 2 ofMessages and Troubleshooting SolutionsATI Access to Menu Functions ATI Access LevelsTable 7-1. Access Levels AdministratorCreating a Login ProcedureOn the Login Entry screen, for the EnterAssigning SNMP Community Names and Access Types Deleting a LoginControlling SNMP Access Main Menu → Configuration → Load Configuration From → Edit →Main Menu → Configuration → Management → Security Menu Resetting the Termination Units COM Port or Factory DefaultsLimiting SNMP Access through the IP Addresses of the Managers ProcedureIf entering yes to prompt ThenIP Addressing Selecting an IP Addressing SchemeIP Addressing Example Peer IP Address AssignmentsTo Access the Configuration Option TablesConfiguration Options in Chapter 3, Initial Startup and Configuration To Configure theTable A-1. Network Interface Options 1 of Main Menu → Configuration → Current Configuration →Network Interface Options Menu Excessive Error Rate ThresholdPossible Settings 000.000.000.001 ± 223.255.255.255, Clear Table A-1. Network Interface Options 2 ofDSL Line Rate Possible Settings 400, 528, 784, 1040 Peer IP Address LTU OnlyMain Menu → Configuration → Load Configuration From → DSX-1 Interface OptionsTable A-2. DSX-1 Interface Options 1 of Port StatusLine Equalization Table A-2. DSX-1 Interface Options 2 ofLine Coding Format Send AIS on Network FailureMain Menu → Configuration → Load Configuration From → System Options MenuTable A-3. System Options 1 of Test TimeoutTable A-3. System Options 2 of Telco Initiated LoopbackRemote Telco Loopback Port Main Menu → Configuration → Load Configuration From → CommunicationCommunication Port Table A-4. Communication Port Options 1 ofCharacter Length Terminal Use Only Table A-4. Communication Port Options 2 ofData Rate Possible Settings 9.6, 14.4, 19.2, 28.8 Parity Terminal Use OnlyLogin Required Terminal Use Only A-10Table A-4. Communication Port Options 3 of Port Access Level Terminal Use OnlyA-11 Management and Communication Options MenuTelnet Session Options Management and Communication → TelnetTelnet Login Required A-12Table A-5. Telnet Session Options Session Access LevelManagement and Communication → Comm Protocol Options Communication Protocol OptionsA-13 Main Menu → Configuration → Load Configuration From →Node IP Address Possible Settings 000.000.000.000 ± A-14Table A-6. Communication Protocol Options 1 of Node Subnet Mask Possible Settings 000.000.000.000 ±Communication Port Subnet Mask Possible Settings 000.000.000.000 ± A-15Table A-6. Communication Protocol Options 2 of Communication Port Link ProtocolManagement and Communication → SNMP → General SNMP Management General SNMP Management OptionsA-16 Table A-7. General SNMP Management Options 1 ofName 1 Access A-17Table A-7. General SNMP Management Options 2 of Community Name Possible Settings ASCII text field, PublicManagement and Communication → SNMP → Security SNMP NMS Security OptionsA-18 Table A-8. SNMP NMS Security Options 1 ofPossible Settings 000.000.000.000 ± 223.255.255.255, Clear A-19Table A-8. SNMP NMS Security Options 2 of Access LevelManagement and Communication → SNMP Traps SNMP Traps OptionsA-20 Table A-9. SNMP Traps Options 1 ofPossible Settings 000.000.000.000 ± 223.255.255.255, Clear A-21Table A-9. SNMP Traps Options 2 of General Traps Possible Settings Disable, Warm, AuthFail, BothLink Traps Possible Settings Disable, Up, Down, Both A-22Table A-9. SNMP Traps Options 3 of Link Trap InterfacesSNMP Traps authenticationFailureStandards Compliance for SNMP Traps warmStartlinkUp and linkDown linkUp/Down Variable-BindingsDescription Enterprise-Specific TrapsSNMP Trap Possible CauseVariable-Bindings InterfaceenterpriseTestStart/Stop Possible CauseCables and Pin Assignments H COM Port Interface Cable H Power Input ConnectorH Optional Power Cable H T1 Network Interface Cable H DSL Network Interface CableT1 Network Interface Table C-1. T1 100-Ohm Balanced Interface ConnectorSignal Pin NumberSignal Table C-2. DSL Network Interface ConnectorDSL Network Interface Cable Pin NumberFigure C-3. COM Port-to-PC Cable Feature Number 7900-F1-507 COM Port Interface CableSignal Table C-3. COM Port Connector J6Direction Pin NumberTable C-4. DC Power Connector Power Input ConnectorOptional Power Cable DC Power Cable Feature Number 7900-F1-506Criteria Technical SpecificationsSpecifications WeightTechnical Specifications bridged tap GlossaryGL-1 COM portDSLAM factory defaultsGL-2 DTLBHDSL resetGL-3 IP addressTCP/IP GL-4SNMP TelnetIndex IN-1IN-2 IN-3 IN-4