Paradyne 7510 DSU Typical DSU Configurations

About the DSU

1-2 7510-A2-GB20-10

November 1997

Typical DSU Configurations

The following illustration shows a typical LAN/WAN interconnection application for

the DSU. The routers connected to the DSU at each location provide the LAN

interconnection.

DDS

Network

97-15084-02

DSU DSU

Router

The DSU can also be used in a Frame Relay network.

Frame

Relay

Network

97-15271-01

DSU DSU

Router

Two DSUs can be connected back-to-back to act as Local Area Data Sets

(LADS).

97-15236-01

DSU DSU

Router

Router 56 kbps

Table D-2 in Appendix D shows the maximum distances for LADS applications.

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