Paradyne 727 manual Data Port Options Menu, Table A-3. Data Port Options 1, Invert Transmit Clock

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Configuration Option Tables

Data Port Options Menu

For Data Port Options, refer to Table A-3. To access the Data Port Options screen, follow this menu selection sequence:

Main Menu → Configuration (Load Configuration From) →

Configuration Edit/Display → Data Port

Table A-3. Data Port Options (1 of 3)

Invert Transmit Clock

Possible Settings: Enable, Disable

Default Setting: Disable

The DSU clock provided on Interchange Circuit CT114, Transmit Signal Element Timing DCE source (TXC), is phase inverted with respect to Interchange Circuit CT103, Transmitted Data (TXD). Recommended when data errors are occurring due to long cable lengths.

Enable ± The DSU-supplied clock is phase inverted with respect to the transmitted data

TXD.

Disable ± The clock supplied by the DSU on TXC is normal (i.e., not inverted).

Port (DTE) Initiated Loopbacks

Possible Settings: Disable, Local, Remote, Both

Default Setting: Disable

Specifies whether the DTE can initiate and terminate local and/or remote loopbacks.

The DTE loopback control is done through the Interchange Circuits specified by the

V.54 standard.

NOTE: Refer to Running Network Tests in Chapter 5.

Disable ± No local or remote loopbacks can be initiated by the DTE.

Local ± A local loopback can be controlled by the DTE, via the Interchange Circuit LL (CT141), as specified by V.54. The DTE port remains in loopback as along as LL remains on. Aborting the loopback from the ATI has no effect.

Remote ± A remote digital loopback can be controlled by the DTE, via Interchange Circuit RL (CT140), as specified by V.54. The remote equipment must be able to detect the in-band V.54 loopback sequence.

Both ± Both the local and remote loopbacks can be controlled by the DTE.

Bilateral Loopback

Possible Settings: Enable, Disable

Default Setting: Disable

When a DSU loopback is initiated, a local DTE loopback is also automatically initiated. A Bilateral Loopback can be started by the ATI/NMS or by detection of a V.54 Loop 2 Up sequence.

Enable ± When Bilateral Loopback is enabled, running a DSU loopback also automatically starts a local loopback. The local loopback ends when the DSU loopback terminates.

Disable ± Running a DSU loopback does not start a local loopback.

NOTE: Refer to Running Network Tests in Chapter 5.

7510-A2-GB20-00

March 1997

A-5

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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 Purpose and Intended Audience About This GuideDocument Summary Product-Related Documents Model 7510 DSU Startup InstructionsModel 7510 DSU Features About the DSUTypical DSU Configurations RouterFrame Router Relay NetworkUser Interfaces Rear Panel InterfacesModem TerminalUsing the Asynchronous Terminal Interface Connecting to the Terminal PortSelect Initiating an ATI SessionMain Menu Status Test Configuration Control Load From Screen Format TypesWhat Affects Screen Displays Use the screen formatScreen Work Areas Data Port OptionsKeyboard Keys Navigating the ScreensPress Screen Function Keys For the screen Select Press Return to FunctionExample Switching to the Screen Function Key AreaNetwork Tests Ending an ATI Session Customizing the DSU Identifying the Device and SystemMain Menu → Control → Device Name Device NameSaving Configuration Options If you select ThenConfiguring the DSU Configuration Option AreasAccessing and Displaying Configuration Options Configuration Option Area Configuration Option SetMonitoring the DSU What to MonitorMain Menu → Status → System and Test Status Viewing System and Test StatusSystem and Test Status Health and Status SELF-TEST Results Health and Status HhhmmssSelf-Test Results Self-Test Results Messages What Message Indicates What To DoTest Status Messages Test Status Messages MeaningViewing Network Interface Status Main Menu → Status → Network Interface StatusViewing Network Performance Statistics Network Performance StatisticsAlarm Test DM OOS OOF NS TXD RXD RTS CTS DTR Monitoring the LEDsMain Menu → Status → Display LEDs Display Leds System NetworkAlarm System LEDsDM ± Data Mode OOS ± Out of ServiceNS ± No Signal Network LEDsPort LEDs Testing Accessing the Test MenuMain Menu → Test TestDevice Messages Loopback Type Initiated By Network Interface Options , Table A-2Running Network Tests Main Menu → Test → Network TestsCSU or External Network Loopback DSU or Internal Network Loopback Send V.54 Up/Down SequencesTest Pattern for the Network Main Menu → Test → Data Port Tests Running Data Port TestsData Port Tests Local Loopback Test Pattern for the DTERunning the Lamp Test Main Menu → Test → Lamp TestEnding an Active Test Messages and Troubleshooting Messages and TroubleshootingResponding to Device Messages Device Messages 1 What Message Indicates What To DoDevice Messages 2 What Message Indicates What To Do Troubleshooting Troubleshooting 1 Symptom Possible Cause SolutionsResetting the DSU Troubleshooting 2 Symptom Possible Cause SolutionsMain Menu → Control → Reset Device Displaying DSU Identity InformationConfiguration Option Tables Select To Access To ConfigureOverview Status Load Edit/Display TestOperating Mode Lads Timing Possible Settings Internal, External, ReceiveSystem Options Menu Table A-1. System Options 1Test Timeout Table A-1. System Options 2Lads Line Rate Kbps Test Duration minNetwork Interface Options Menu Table A-2. Network Interface OptionsNetwork-initiated DSU Loopback 64K CC Data Scrambling 64K CCData Port Options Menu Table A-3. Data Port Options 1Invert Transmit Clock Bilateral LoopbackCarrier 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 1Table A-4. Terminal Port Options 2 Disconnect TimeminutesConfiguration Option Settings Configuration WorksheetsWorksheets Network Interface Cables and Pin Assignments Terminal Port EIA-232 Connector Signal Direction Pin #Signal User Data Port ConnectorDirection Pin Socket Connector Standard EIA-232-D Crossover Cable PinLAN Adapter Converter and Cable Modular RJ48S DDS Network Interface CableRJ48S DDS Network Interface Cable Functions Circuit Pin # Cable Plug to Modular Jack LAN AdapterTechnical Specifications Table D-1. Model 7510 DSU Technical Specifications 1Table D-1. Model 7510 DSU Technical Specifications 2 Network InterfaceNetwork Compatibility DTE Data Port InterfaceGlossary Factory defaults EIA-232Excessive BPV Frame relayReset MultiplexingNode Non-latchingIndex NumbersIN-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.
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