Paradyne 7510 DSU Local Loopback, 511 Test Pattern for the DTE

Testing

5-8 7510-A2-GB20-10

November 1997

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.

DSU CSU

DTE

Interface Aggregate DDS

Network

Port

496-15145

DTE

Port

Local Loopback

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.

Contents

Main Page i Contents About This Guide 1About the DSU 2Using the Asynchronous Terminal Interface 3Customizing the DSU 4Monitoring the DSU 5Testing 6Messages and Troubleshooting Page v About This Guide Document Purpose and Intended Audience Document Summary Section Description Product-Related Documents 1-1 About the DSU 1 Model 7510 DSU Features 1-2 Typical DSU Configurations 1-3 User Interfaces Monitoring the DSU Using the Asynchronous Terminal Interface Rear Panel Interfaces Model 7510 DSU Startup Instructions Using the Asynchronous Terminal Interface 2 Connecting to the Terminal Port 2-2 Initiating an ATI Session Using the Asynchronous Terminal Interface 2-3 Screen Format Types Screen Work Areas Three types of screen formats are available on the ATI. Use the screen format . . . To . . . What Affects Screen Displays 2-4 Screen Work Areas Data Port Options 2-5 Navigating the Screens Keyboard Keys 2-6 Screen Function Keys 2-7 Switching to the Screen Function Key Area Example: Ending an ATI Session 3-1 Customizing the DSU 3 Control Identifying the Device and System Device Name 3-2 Saving Configuration Options NOTE: 3-3 Configuring the DSU Worksheets Configuration Option Tables , Configuration Option Areas Monitoring the DSU 4 What to Monitor 4-2 Viewing System and Test Status System and Test Status 4-3 Health and Status 4-4 Table 4-2. Health and Status Messages (2 of 2) Message What To DoWhat Message Indicates Self-Test Results 4-5 Test Status Messages 4-6 Viewing Network Interface Status Network Interface Status 4-7 Viewing Network Performance Statistics hhh:mm:ss Network Performance Statistics 4-8 Monitoring the LEDs Display LEDs 4-9 System LEDs Troubleshooting 4-10 Network LEDs 4-11 Port LEDs 5-1 Testing 5 Accessing the Test Menu Testing 5-2 5-3 Running Network Tests Network Tests 5-4 CSU or External Network Loopback 5-5 DSU or Internal Network Loopback Running Network Tests Send V.54 Up/Down Sequences 5-6 511 Test Pattern for the Network Running Network Tests 5-7 Running Data Port Tests 5-8 Local Loopback 511 Test Pattern for the DTE 5-9 Port Connector V.35 User Data Running the Lamp Test Lamp Test 5-10 Ending an Active Test 6-1 Messages and Troubleshooting 6 x Messages and Troubleshooting Responding to Device Messages Troubleshooting 6-2 Table 6-1. Device Messages (2 of 2) Device Message What To DoWhat Message Indicates 6-3 Troubleshooting Connecting to the Terminal Port 6-4 Table 6-2. Troubleshooting (2 of 2) Symptom SolutionsPossible Cause Identity Resetting the DSU The DSU can be reset locally or remotely. To reset the DSU, follow this menu selection sequence: Reset Device Displaying DSU Identity Information A-1 Configuration Option Tables A All changes to configuration options must be saved. Refer to NOTE: Saving Configuration Options in Chapter 3. System Options Menu System Table A-1. System Options (1 of 2) A-3 Table A-1. System Options (2 of 2) A-4 Network Interface Options Menu Network Table A-2. Network Interface Options A-5 Data Port Options Menu Data Port Table A-3. Data Port Options (1 of 3) A-6 Table A-3. Data Port Options (2 of 3) A-7 Terminal Port Options Terminal Port A-8 B-1 Worksheets B Configuration Worksheets Worksheets B-2 Network Interface Data Port Terminal Port C-1 Cables and Pin Assignments C C-2 Terminal Port EIA-232 Connector C-3 V.35 User Data Port Connector Cables and Pin Assignments C-4 Standard EIA-232-D Crossover Cable A standard crossover cable can be used to connect the Terminal port to an external modem. Cables and Pin Assignments C-5 LAN Adapter Converter and Cable Modular RJ48S DDS Network Interface Cable D-1 Technical Specifications D Table D-1. Model 7510 DSU Technical Specifications (1 of 2) Item Specifications D-2 GL-1 Glossary GL-2 GL-3 IN-1 Index Numbers A C D H I K L M R See S T U