Paradyne 727 manual EIA-232, Excessive BPV, Factory defaults, Frame relay, Full-duplex, Interface

Page 66

Glossary

DMI

Data Mode Idle. Refers to a sequence of ones transmitted or received on the DDS

 

network.

DSR

Data Set Ready. An EIA-lead standard for V.24 circuit CT 107; an output signal

 

(DCE-to-DTE).

DSU

Data Service Unit. Data communications equipment that provides an interface between the

 

DTE and the digital network.

DTE

Data Terminal Equipment. The equipment, such as computers and printers, that provides

 

or creates data.

DTR

Data Terminal Ready. An EIA-lead standard for V.24 circuit CT 108; an input signal

 

(DTE-to-DCE).

EIA

Electronic Industries Association. This organization provides standards for the data

 

communications industry to ensure uniformity of interface between DTEs and DCEs.

EIA-232

The EIA's standards defining the 25-pin interface between the DTE and DCE.

excessive BPV

An excessive bipolar violation condition results when at least one invalid bipolar violation

 

has occurred every 20 milliseconds for 2 seconds.

factory defaults

A predetermined set of configuration options for general operation.

FCC

Federal Communications Commission. Board of Commissioners that regulates all U.S.

 

interstate, intrastate, and foreign electrical communication systems that originate from the

 

United States.

frame relay

A switching interface that is designed to get frames from one part of the network to another

 

as quickly as possible.

full-duplex

The capability to transmit in two directions simultaneously.

HDLC

High-Level Data Link Control. A communications protocol defined by the International

 

Standards Organization (ISO).

interface

A shared boundary between functional units.

ITU

International Telecommunication Union, formerly known as CCITT . An advisory committee

 

established by the United Nations to recommend communications standards and policies.

LADS

Local Area Data Set is used to provide a point-to-point link between two devices (also

 

called LDM ± limited distance modem).

LAN

Local Area Network. A network designed to connect devices over short distances, like

 

within a building.

latching loopback

A latching loopback can only be initiated or terminated by the 64 kbps clear channel

 

network service provider.

LED

Light Emitting Diode. A status indicator that responds to the presence of a certain

 

conditions.

link layer protocol

The protocol that regulates the communication between two network nodes.

LL

Local Loopback. An EIA-lead standard for V.24 circuit CT 141; an input signal

 

(DTE-to-DCE).

loopback

Used to test various portions of a data link in order to isolate an equipment or data line

 

problem. A diagnostic procedure that sends a test message back to its origination point.

LSD

Line Signal Detect. An EIA-lead standard for V.24 circuit CT 109; an output signal

 

(DCE-to-DTE).

GL-2

March 1997

7510-A2-GB20-00

Page 65 Page 67
Image 66
Page 65 Page 67
Contents Area Code Change Model 7510 DSU Copyright  1997 Paradyne Corporation All rights reserved Contents Monitoring the DSU Technical Specifications Glossary Index About This Guide Document Purpose and Intended AudienceDocument Summary Product-Related Documents Model 7510 DSU Startup InstructionsModel 7510 DSU Features About the DSUFrame Typical DSU ConfigurationsRouter Router Relay NetworkModem User InterfacesRear Panel Interfaces TerminalUsing the Asynchronous Terminal Interface Connecting to the Terminal PortInitiating an ATI Session SelectMain Menu What Affects Screen Displays Status Test Configuration Control Load FromScreen Format Types Use the screen formatScreen Work Areas Data Port OptionsNavigating the Screens Keyboard KeysPress Screen Function Keys For the screen Select Press Return to FunctionSwitching to the Screen Function Key Area ExampleNetwork Tests Ending an ATI Session Main Menu → Control → Device Name Customizing the DSUIdentifying the Device and System Device NameSaving Configuration Options If you select ThenAccessing and Displaying Configuration Options Configuring the DSUConfiguration Option Areas Configuration Option Area Configuration Option SetMonitoring the DSU What to MonitorViewing System and Test Status Main Menu → Status → 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 StatisticsMain Menu → Status → Display LEDs Alarm Test DM OOS OOF NS TXD RXD RTS CTS DTRMonitoring the LEDs Display Leds System NetworkAlarm System LEDsNS ± No Signal DM ± Data ModeOOS ± Out of Service Network LEDsPort LEDs Main Menu → Test TestingAccessing the Test Menu 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 Running Data Port Tests Main Menu → Test → Data Port TestsData Port Tests Local Loopback Test Pattern for the DTERunning the Lamp Test Main Menu → Test → Lamp TestEnding an Active Test Responding to Device Messages Messages and TroubleshootingMessages and Troubleshooting Device Messages 1 What Message Indicates What To DoDevice Messages 2 What Message Indicates What To Do Troubleshooting Troubleshooting 1 Symptom Possible Cause SolutionsMain Menu → Control → Reset Device Resetting the DSUTroubleshooting 2 Symptom Possible Cause Solutions Displaying DSU Identity InformationOverview Configuration Option TablesSelect To Access To Configure Status Load Edit/Display TestSystem Options Menu Operating ModeLads Timing Possible Settings Internal, External, Receive Table A-1. System Options 1Lads Line Rate Kbps Test TimeoutTable A-1. System Options 2 Test Duration minNetwork-initiated DSU Loopback 64K CC Network Interface Options MenuTable A-2. Network Interface Options Data Scrambling 64K CCInvert Transmit Clock Data Port Options MenuTable A-3. Data Port Options 1 Bilateral LoopbackTable A-3. Data Port Options 2 Carrier Control by RTSRlsd Control Table A-3. Data Port Options 3 Inactivity TimeoutTerminal Port Options Table A-4. Terminal Port Options 1Table A-4. Terminal Port Options 2 Disconnect TimeminutesConfiguration Worksheets Configuration Option SettingsWorksheets Network Interface Cables and Pin Assignments Terminal Port EIA-232 Connector Signal Direction Pin #User Data Port Connector SignalDirection Pin Socket Connector Standard EIA-232-D Crossover Cable PinRJ48S DDS Network Interface Cable Functions Circuit Pin # LAN Adapter Converter and CableModular RJ48S DDS Network Interface Cable Cable Plug to Modular Jack LAN AdapterTechnical Specifications Table D-1. Model 7510 DSU Technical Specifications 1Network Compatibility Table D-1. Model 7510 DSU Technical Specifications 2Network Interface DTE Data Port InterfaceGlossary Excessive BPV Factory defaultsEIA-232 Frame relayNode ResetMultiplexing 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.
Top Page Image Contents