Paradyne 727 Device Messages Loopback Type Initiated By, Network Interface Options , Table A-2

Page 35

Testing

Loopbacks can be started from a variety of points in the network, as shown in

Table 5-1.

Table 5-1. Device Messages

Loopback Type

Initiated By

Notes

 

 

 

 

Bilateral Loopback

H

User

When enabled, running a DSU loopback

 

H

Remote unit sending

also automatically starts a local

 

loopback. Refer to Data Port Options,

 

 

V.54 sequence

 

 

Table A-3, to enable.

 

 

 

 

 

 

 

CSU Loopback

H

User (Network tests)

When initiated by the network, CSU

 

H

DDS Network, by

Loopback cannot be disabled by the

 

user.

 

 

loop current reversal

 

 

 

 

 

 

 

DSU Loopback

H

User

Refer to Data Port Options, Table A-3.

(Digital)

 

 

 

 

 

 

 

Local Loopback

H

User

Control via CT141 can be disabled.

 

H

DTE via CT141

Refer to Data Port Options, Table A-3.

 

 

 

 

 

 

Network-initiated

H

DDS Network

Cannot be disabled by user.

56 kbps DSU

 

 

 

Loopback (Non-

 

 

 

latching loopback)

 

 

 

 

 

 

 

Network-initiated

H

DDS Network

Includes optional data scrambling and

64 kbps CC DSU

 

 

uses 25-second timer to detect the

Loopback

 

 

network sequence. Can be disabled by

(Latching loopback)

 

 

user.

 

 

 

 

Remote Digital

H

Remote unit sending

Same as a DSU Loopback but initiated

Loopback

 

V.54 sequence

by a remote unit via V.54 sequence.

 

 

 

Can be disabled locally. Refer to

 

 

 

Network Interface Options, Table A-2.

 

 

 

 

V.54 Sequences to remote unit

HUser

HDTE via CT140

Control via CT140 can be disabled. Refer to Data Port Options, Table A-3.

5-2

March 1997

7510-A2-GB20-00

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Page 34 Page 36
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.
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