DTE Loopback | Paradyne 8779, U8777 guide

8. Testing

DTE Loopback

DTE Loopback loops the DSX-1 or G.703 signal back to itself, retaining (bipolar violation) BPV transparency. Also:

If the DSX-1 or G.703 port is in a DS0 cross-connection, the time slots

Tcross-connected to the DSX-1 or G.703 port are sent all ones.

If the DSX-1 or G.703 port is in Bypass mode or a DS1 cross-connection, all ones are sent to the corresponding port and data received on the connected ports will be ignored.

DSL

Port All Ones

CAP

CAP

Transceiver Framer

T1/E1
LIU	DSX-1
LIU	or G.703
	Port
Framer
	02-16614-01

Procedure

To run a DTE Loopback:

1.Position the cursor at the Start command next to DTE Loopback on the Network & DSX-1 or Network & G.703 Tests screen.

2.Press Enter.

The Start command is changed to Stop. Status is changed to Active.

3.To manually stop the test, verify that the cursor is positioned at the Stop command.

4.Press Enter.

Status is changed to Inactive.

The DTE Loopback cannot be started when any other loopback test is in progress.

8-6

May 2002

8700-A2-GB20-40

Image 84

Paradyne 8779, U8777 manual DTE Loopback

Contents

Hotwire TDM Sdsl Termination Units Copyright 2002 Paradyne Corporation All rights reserved Contents Cross-Connecting Ports Monitoring and TroubleshootingIP Addressing Security Testing Transferring Firmware and Configurations Using TftpConfiguration Options Connector Pin Assignments Technical Specifications Cross-Connection WorksheetsStandards Compliance for Snmp Traps Index New Features for this Release About This GuideDocument Purpose and Intended Audience Document Summary Product-Related Documents Document Number Document Title About Hotwire 8777 TDM Sdsl Units TDM Sdsl Overview TDM Sdsl Features Model Has eight Eight Network Configuration Customer Premises CPCO Site Snmp Management Capabilities Management Information Base MIB SupportSnmp Trap Support Using the Asynchronous Terminal Interface User Interface AccessManagement Serial Port Settings Documents in About This Guide Logging In to the Hotwire Dslam LoginInitiating an ATI Session Select Main Menu Menu Hierarchy Inband Main Menu → Configuration → Current Configuration→ Network Screen Work AreasFunction Keys Navigating the Screens Keyboard KeysPress Function Keys For the screen Function Select Press Enter to Switching Between Screen Work Areas Example Ending an ATI Session Exiting From the Dslam Session Using the Asynchronous Terminal Interface May Initial Startup and Configuration Overview Entering Identity Information Main Menu → Control→ Change IdentityIdentity Configuring the Unit Configuration OptionsConfiguration Option Area Configuration Option Set Accessing and Displaying Configuration Options Main Menu → Configuration Load Configuration FromLoad Configuration from If you select Then Current and Default Factory Configurations Configuration EDIT/DISPLAY Select Access To Configure Table A-5 Configuration Loader Main Menu → Configuration → Configuration LoaderConfiguration Loader DSL Completed successfully Saving Configuration Options Save Configuration Restoring Access to the User Interface Resetting the Device Resetting AutoRate Main Menu → Configuration → Current Configuration → NetworkMain Menu → Control → Reset AutoRate Disabling AutoRate Downloading Firmware Main Menu → Control → Download CodeDownload Code Apply Download Initial Startup and Configuration May Cross-Connecting Ports Determining the Configuration DSL Setting the Cross-Connect Modes Mode Assigning Time Slots Data or v Voice = DSL = DSX-1Slots of DSL Ports 1 Following example shows the configuration for DSX-1 Port Assign Time Slots CROSS-CONNECT Mode Cross-Connecting Ports May Configurations Not Running IP Conservative Software Configuration OptionsIP Addressing Selecting an IP Addressing Scheme All Configurations Appendix A, Configuration OptionsIP Addressing Example Security ATI Access Levels Creating a Login Administer LoginsLogin Entry Deleting a Login On the Login Entry Screen, for Enter Controlling Snmp Access Assigning Snmp Community Names and Access TypesManagement Options, in Appendix A, Configuration Options Configuration Options, to Security May Monitoring and Troubleshooting What to Monitor Viewing System and Test Status Main Menu → Status→ System and Test StatusSystem and Test Status Health and Status SELF-TEST Results Health and Status Messages Yyyyyyyy Monitoring and Troubleshooting See Network Interface Options See G.703 Interface Options Self-Test Results Messages DTE Monitoring and Troubleshooting Test Status Messages Test Status Messages Meaning Device Messages Device Messages 1 What Message Indicates What To Do Performance Statistics Device Messages 2 What Message Indicates What To Do Viewing Network Error Statistics Network Error Statistics Viewing Network Performance Statistics Field Contains Field Contains Viewing DSX-1 Performance Statistics Performance Statistics Field Contains Viewing G.703 Performance Statistics Interval is displayed. When zero, the port is disabled Viewing Current Network Performance Statistics SESFebe Viewing Inband Management Statistics Inband Management Statistics Dlci Viewing LED Status System Display LEDs Screen Type Label Value is Indicating System Front Panel LEDs LED is Indicating Troubleshooting Troubleshooting 1 Symptom Possible Cause SolutionsChanging the Meaning of the Ports LEDs Troubleshooting 2 Symptom Possible Cause Solutions Testing Testing Accessing the Test MenuMain Menu → Test Test Running Network Tests Network & DSX-1 TestsNetwork & G.703 Tests 8700-A2-GB20-40 May Network Line Loopback Repeater Loopback DTE Loopback Remote Send Line Loopback Send and Monitor Device Tests Lamp TestMain Menu → Test→ Device Tests Device Tests Ending an Active Test Telco-Initiated Tests Telco-Initiated Line LoopbackTelco-Initiated Payload Loopback Activation Line Payload Remote Line Deactivation Loopback Telco-Initiated Remote Line Loopback Transferring Firmware and Configurations Using Tftp DSL1 Transferring Firmware and Configurations Using Tftp Procedure Configuration Loader Completed successfully Transferring Firmware and Configurations Using Tftp May Configuration Options Select To Access To Configure Network Interface Options Menu Table A-1. Network Interface Options 1Port Status Margin Threshold Excessive Error Rate Threshold Table A-1. Network Interface Options 2AutoRate Possible Settings 001.000.000.000 223.255.255.255, Clear Table A-1. Network Interface Options 3Transmit Attenuation Peer IP Address Table A-1. Network Interface Options 4 DS0 Cross Connect Line FramingCircuit Identifier Configuration Options Main Menu → Configuration → Current Configuration → DSX-1 DSX-1 Interface Options ModelTable A-4. DSX-1 Interface Options Model 8777 1 Line Coding Format Table A-4. DSX-1 Interface Options Model 8777 2 Line FramingPrimary Clock Source Main Menu → Configuration → Current Configuration → G.703 Interface Options ModelTable A-5. G.703 Interface Options Model 8779 1 Interface Options Table A-5. G.703 Interface Options Model 8779 2 FramingLine Coding Table A-5. G.703 Interface Options Model 8779 3 Copy Ports Options Table A-6. Copy Port OptionsFrom Port n To Port y DSL Mode Test TimeoutSystem Options Table A-7. System Options 1 Table A-7. System Options 2 Test Duration minTelco Initiated Loopback Remote Telco Line Loopback System Clock System Clock Figure A-1. System Timing Figure A-2. System Clock Configuration Examples Table A-8. System Clock Options CROSS-CONNECT Configuration Cross-Connect Setting Cross-Connect Mode Following screen is displayed for Model Mode DSL Table A-9. Cross-Connect Mode Options Model DSL Port Table A-10. Cross-Connect Mode Options Model Source Assigning Time Slots Following screen is displayed for a DSX-1 port Model Time Slot Number Assign Time Slots DSL Table A-11. Assign Time Slots Options 1 DSX-1/DSL or G.703/DSLPort Type Port Table A-11. Assign Time Slots Options 2 Start TSAssign To Data or Voice Management and Communication Options Menu Telnet Session OptionsTelnet Session Options Table A-12. Telnet Session Options General Snmp Management Options Table A-13. General Snmp Management Options 1Snmp Management General Snmp Management Options Name 1 Access Name 2 AccessTable A-13. General Snmp Management Options 2 Community Name Snmp NMS Security Options Snmp NMS Security OptionsNMS Access Type Table A-14. Snmp NMS Security OptionsNMS IP Validation Snmp Traps Options Snmp Traps Options Table A-15. Snmp Traps Options 1 Snmp Traps Link Traps Possible Settings Disable, Up, Down, Both Table A-15. Snmp Traps Options 2Enterprise Specific Traps Link Traps Interfaces Inband Management Channel Model Inband Management ChannelPPP Table A-16. Inband Management Channel Options Model Configuring and Testing Inband Management Cross Connect Mode screen appears Cross Connect Mode Following screen appears = Ibmc Configuration Options Standards Compliance for Snmp Traps Snmp TrapsIfIndex IfIndex Description AuthenticationFailure WarmStartLinkUp and linkDown Snmp Trap Description Possible Cause LinkUp/DownTvariable bindings Enterprise-Specific Traps IfType RFC 8700-A2-GB20-40 May May Connector Pin Assignments Front Panel 50-pin DTE Connector Pinouts Connector Pin Assignments Table C-2. Rear Connector Pinouts Connector Pins Port Tip, Ring Connector Pin Assignments May Technical Specifications Technical Specifications May Using the Worksheets Cross-Connection Worksheets Port Connection Diagram DSX-1 Time Slot Assignments Time Slot Assignments DSX-1 PortTS01 Time Slot Assignments DSX-1 Port Time Slot Assignments DSX-1 Port Time Slot Assignments DSX-1 Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments Time Slot Assignments G.703 Port Time Slot Assignments G.703 Port Time Slot Assignments G.703 Port Time Slot Assignments G.703 Port Time Slot Assignments G.703 Port Time Slot Assignments G.703 Port Time Slot Assignments G.703 Port Time Slot Assignments G.703 Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Time Slot Assignments DSL Port Index Snmp IN-2 IN-3 IN-4 IN-5 IN-6