Local Loopback, Test Pattern for the DTE | Paradyne 7510 DSU

Testing

Local Loopback

Local Loopback loops the user data back to the DTE. This loopback is located as closely as possible to the User Data Port (DTE) interface.

"Procedure

To run a local loopback:

1.Position the cursor at the Start command next to Local Loopback on the Data Port Tests screen.

2.Press Enter.

3.The Start command is changed to Stop. If you want to manually stop the test, verify that the cursor is positioned at the Stop command.

4.Press Enter. The duration of the test is displayed.

DTE Port

DSU		CSU
DTE	Aggregate
Interface	Aggregate

DDS

Network

Port

Local Loopback

496-15145

511 Test Pattern for the DTE

This test sends or monitors a 511 test pattern over the User Data Port interface.

"Procedure

To run a Send 511 test:

1.Position the cursor at the Start command next to Send 511 on the Data Port Tests screen.

2.Press Enter.

3.The Start command is changed to Stop. If you want to manually stop the test, verify that the cursor is positioned at the Stop command.

4.Press Enter. The duration of the test is displayed.

5-8

November 1997

7510-A2-GB20-10

Image 40

Paradyne 7510 DSU manual Local Loopback, Test Pattern for the DTE

Contents

Model 7510 DSU Copyright 1997 Paradyne Corporation All rights reserved Contents Monitoring the DSU Configuration Option Tables Index Document Purpose and Intended Audience About This GuideDocument Summary Product-Related Documents Model 7510 DSU Startup Instructions Model 7510 DSU Features About the DSU Frame Typical DSU ConfigurationsRouter Relay Network User Interfaces Rear Panel InterfacesModem Terminal Using the Asynchronous Terminal Interface Connecting to the Terminal Port Select Initiating an ATI SessionMain Menu Status Test Configuration Control Load From Screen Format TypesWhat Affects Screen Displays Use the screen format Screen Work Areas Menu Path Keyboard Keys Navigating the ScreensPress Screen Function Keys For the screen Select Press Return to Function Switching to the Screen Function Key Area Example Ending an ATI Session Customizing the DSU Identifying the Device and SystemMain Menu → Control → Device Name Device Name Saving Configuration Options If you select Then Configuring the DSU Configuration Option AreasAccessing and Displaying Configuration Options Configuration Option Area Configuration Option Set Monitoring the DSU What to Monitor Main Menu → Status → System and Test Status Viewing System and Test StatusSystem and Test Status Health and Status SELF-TEST Results Health and Status Hhhmmss Self-Test Results Self-Test Results Messages What Message Indicates What To Do Test Status Messages Test Status Messages Meaning Viewing Network Interface Status Main Menu → Status → Network Interface Status Viewing Network Performance Statistics Network Performance Statistics Alarm Test DM OOS OOF NS TXD RXD RTS CTS DTR Monitoring the LEDsMain Menu → Status → Display LEDs Display Leds System Network Alarm System LEDs DM ± Data Mode OOS ± Out of ServiceNS ± No Signal Network LEDs Port LEDs Testing Accessing the Test MenuMain Menu → Test Test Device Messages Loopback Type Initiated By Table A- 2, Network Interface Options Main Menu → Test → Network Tests Running Network TestsNetwork Tests CSU or External Network Loopback DSU or Internal Network Loopback Send V.54 Up/Down Sequences Test Pattern for the Network Main Menu → Test → Data Port Tests Running Data Port TestsData Port Tests Local Loopback Test Pattern for the DTE Running the Lamp Test Main Menu → Test → Lamp Test Ending an Active Test Messages and Troubleshooting Messages and TroubleshootingResponding to Device Messages Device Messages 1 What Message Indicates What To Do Device Messages 2 What Message Indicates What To Do Troubleshooting Troubleshooting 1 Symptom Possible Cause Solutions Resetting the DSU Troubleshooting 2 Symptom Possible Cause SolutionsMain Menu → Control → Reset Device Displaying DSU Identity Information Configuration Option Tables Select To Access To ConfigureOverview Status Load Edit/Display Test Operating Mode Lads Timing Possible Settings Internal, External, ReceiveSystem Options Menu Table A-1. System Options 1 Test Timeout Table A-1. System Options 2Lads Line Rate Kbps Test Duration min Network Interface Options Menu Table A-2. Network Interface OptionsNetwork-initiated DSU Loopback 64K CC Data Scrambling 64K CC Data Port Options Menu Table A-3. Data Port Options 1Invert Transmit Clock Bilateral Loopback Carrier Control by RTS Table A-3. Data Port Options 2Rlsd Control Inactivity Timeout Terminal Port OptionsTable A-3. Data Port Options 3 Table A-4. Terminal Port Options 1 Table A-4. Terminal Port Options 2 Disconnect Timeminutes Configuration Option Settings Configuration WorksheetsWorksheets Network Interface Cables and Pin Assignments Terminal Port EIA-232 Connector Signal Direction Pin # Signal User Data Port ConnectorNumber Direction Pin Socket Connector Standard EIA-232-D Crossover Cable Pin LAN Adapter Converter and Cable Modular RJ48S DDS Network Interface CableRJ48S DDS Network Interface Cable Functions Circuit Pin # Cable Plug to Modular Jack LAN Adapter Technical Specifications Table D-1. Model 7510 DSU Technical Specifications 1 Table D-1. Model 7510 DSU Technical Specifications 2 Network InterfaceNetwork Compatibility DTE Data Port Interface Glossary Factory defaults EIA-232Excessive BPV Frame relay Reset MultiplexingNode Non-latching Index Numbers IN-2 IN-3