Paradyne 727 manual Resetting the DSU, Displaying DSU Identity Information

Page 47

Messages and Troubleshooting

Table 6-2. Troubleshooting (2 of 2)

Symptom

Possible Cause

Solutions

Not receiving data;

H DDS line rate/speed has

1.

Verify that your subscriber loop is

DSU is not

changed.

 

running at 56 or 64 CC kbps.

responding.

H Excessive BPVs causing

2.

If getting Excessive BPVs, verify

 

 

DSU to become stuck in

 

that you do not have a bad cable.

 

Autobaud mode.

 

If the cable is good, contact the

 

H Excessive Loop Loss

 

network provider.

 

causing DSU to become

3.

If getting excessive Loop Loss

 

stuck in Autobaud mode.

 

 

(dB) indications, install a higher

 

 

 

 

 

 

quality cable. Refer to Table D-2

 

 

 

in Appendix D, Model 7510

 

 

 

DSU LADS Connection

 

 

 

Distances.

 

 

4.

If the DDS Line Rate (Kbps) field

 

 

 

shows Autobaud, the DSU may

 

 

 

be stuck in Autobaud mode.

 

 

 

Configure Line Rate (Kbps) for

 

 

 

56 or 64 kbps.

 

 

5.

Run Loopback tests. Refer to

 

 

 

Running Network Tests in of

 

 

 

Chapter 5.

 

 

 

 

Power-Up Self-Test

The DSU has detected an

H

Reset the DSU and try again.

fails. Only Alarm

internal hardware failure.

H

Contact your service

LED is on after

 

 

 

representative.

power-up.

 

 

 

 

 

 

 

 

 

Resetting the DSU

The DSU can be reset locally or remotely.

To reset the DSU, follow this menu selection sequence:

Main Menu Control Reset Device

The DSU reinitializes itself, performing a Device Self-Test. Refer to Self-Test

Results Messages, Table 4-3.

Displaying DSU Identity Information

To display the DSU's system name, location, contact, serial number, model number, and software and hardware revision numbers, follow this menu selection sequence:

Main Menu Status Identity

6-4

March 1997

7510-A2-GB20-00

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Contents Area Code Change Model 7510 DSU Copyright  1997 Paradyne Corporation All rights reserved Contents Monitoring the DSU Technical Specifications Glossary Index Document Summary About This GuideDocument Purpose and Intended Audience Model 7510 DSU Startup Instructions Product-Related DocumentsAbout the DSU Model 7510 DSU FeaturesRouter Relay Network Typical DSU ConfigurationsRouter FrameTerminal User InterfacesRear Panel Interfaces ModemConnecting to the Terminal Port Using the Asynchronous Terminal InterfaceMain Menu Initiating an ATI SessionSelect Use the screen format Status Test Configuration Control Load FromScreen Format Types What Affects Screen DisplaysData Port Options Screen Work AreasPress Navigating the ScreensKeyboard Keys For the screen Select Press Return to Function Screen Function KeysNetwork Tests Switching to the Screen Function Key AreaExample Ending an ATI Session Device Name Customizing the DSUIdentifying the Device and System Main Menu → Control → Device NameIf you select Then Saving Configuration OptionsConfiguration Option Area Configuration Option Set Configuring the DSUConfiguration Option Areas Accessing and Displaying Configuration OptionsWhat to Monitor Monitoring the DSUSystem and Test Status Health and Status SELF-TEST Results Viewing System and Test StatusMain Menu → Status → System and Test Status Hhhmmss Health and StatusSelf-Test Results Messages What Message Indicates What To Do Self-Test ResultsTest Status Messages Meaning Test Status MessagesMain Menu → Status → Network Interface Status Viewing Network Interface StatusNetwork Performance Statistics Viewing Network Performance StatisticsDisplay Leds System Network Alarm Test DM OOS OOF NS TXD RXD RTS CTS DTRMonitoring the LEDs Main Menu → Status → Display LEDsSystem LEDs AlarmNetwork LEDs DM ± Data ModeOOS ± Out of Service NS ± No SignalPort LEDs Test TestingAccessing the Test Menu Main Menu → TestNetwork Interface Options , Table A-2 Device Messages Loopback Type Initiated ByMain Menu → Test → Network Tests Running Network TestsCSU or External Network Loopback Send V.54 Up/Down Sequences DSU or Internal Network LoopbackTest Pattern for the Network Data Port Tests Running Data Port TestsMain Menu → Test → Data Port Tests Test Pattern for the DTE Local LoopbackMain Menu → Test → Lamp Test Running the Lamp TestEnding an Active Test Device Messages 1 What Message Indicates What To Do Messages and TroubleshootingMessages and Troubleshooting Responding to Device MessagesDevice Messages 2 What Message Indicates What To Do Troubleshooting 1 Symptom Possible Cause Solutions TroubleshootingDisplaying DSU Identity Information Resetting the DSUTroubleshooting 2 Symptom Possible Cause Solutions Main Menu → Control → Reset DeviceStatus Load Edit/Display Test Configuration Option TablesSelect To Access To Configure OverviewTable A-1. System Options 1 Operating ModeLads Timing Possible Settings Internal, External, Receive System Options MenuTest Duration min Test TimeoutTable A-1. System Options 2 Lads Line Rate KbpsData Scrambling 64K CC Network Interface Options MenuTable A-2. Network Interface Options Network-initiated DSU Loopback 64K CCBilateral Loopback Data Port Options MenuTable A-3. Data Port Options 1 Invert Transmit ClockRlsd Control Table A-3. Data Port Options 2Carrier Control by RTS Table A-4. Terminal Port Options 1 Inactivity TimeoutTerminal Port Options Table A-3. Data Port Options 3Disconnect Timeminutes Table A-4. Terminal Port Options 2Worksheets Configuration WorksheetsConfiguration Option Settings Network Interface Cables and Pin Assignments Signal Direction Pin # Terminal Port EIA-232 ConnectorDirection Pin Socket Connector User Data Port ConnectorSignal Pin Standard EIA-232-D Crossover CableCable Plug to Modular Jack LAN Adapter LAN Adapter Converter and CableModular RJ48S DDS Network Interface Cable RJ48S DDS Network Interface Cable Functions Circuit Pin #Table D-1. Model 7510 DSU Technical Specifications 1 Technical SpecificationsDTE Data Port Interface Table D-1. Model 7510 DSU Technical Specifications 2Network Interface Network CompatibilityGlossary Frame relay Factory defaultsEIA-232 Excessive BPVNon-latching ResetMultiplexing NodeNumbers IndexIN-2 IN-3

727 specifications

The Paradyne 727 is a cutting-edge piece of networking equipment that stands out for its robust performance and versatility in various technological environments. Designed primarily as a digital subscriber line (DSL) modem, the Paradyne 727 has gained significant traction among service providers looking to enhance their broadband offerings for residential and business customers.

One of the main features of the Paradyne 727 is its ability to support both Asymmetric Digital Subscriber Line (ADSL) and Very-high-bit-rate Digital Subscriber Line (VDSL) technologies. This dual compatibility allows for flexible deployment in different network infrastructures, whether in urban areas with high demand for broadband or in rural areas where DSL remains a feasible option. The device is capable of delivering high-speed internet access with downstream rates that can reach up to 24 Mbps for ADSL and up to 50 Mbps for VDSL, ensuring faster connectivity for users.

The Paradyne 727 is also equipped with advanced modulation technologies, such as discrete multitone modulation (DMT), which provides a superior noise immunity and allows for higher data rates over traditional DSL technologies. This capability makes it particularly beneficial in environments with varied signal quality. Moreover, the modem features an auto-sensing capability that helps it adjust to the best transmission parameters automatically, simplifying installation and maintenance for service providers.

Another significant characteristic of the Paradyne 727 is its user-friendly design. The device incorporates an intuitive web-based management interface that allows network administrators to efficiently monitor performance metrics, configure settings, and perform troubleshooting from a centralized location. This feature streamlines operations and minimizes downtime, which is crucial in maintaining service quality and customer satisfaction.

In addition to its performance and management features, the Paradyne 727 is built with security in mind. It supports both local authentication and RADIUS authentication, providing robust access control mechanisms to protect sensitive data and ensure that only authorized users can access the network. This emphasis on security contributes to the modem's appeal in enterprise settings, where data integrity is paramount.

With its comprehensive features, advanced technologies, and commitment to performance and security, the Paradyne 727 is a significant player in the world of broadband networking. Its adaptability makes it suitable for a wide range of applications, supporting the growing demand for high-speed internet access across various market segments.