Paradyne 7510 DSU 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-GB20-10

November 1997

A-5

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Contents Model 7510 DSU Copyright 1997 Paradyne Corporation All rights reserved Contents Monitoring the DSU Index Configuration Option TablesAbout This Guide Document Purpose and Intended AudienceDocument Summary Model 7510 DSU Startup Instructions Product-Related DocumentsAbout the DSU Model 7510 DSU FeaturesTypical DSU Configurations FrameRouter Relay Network Terminal User InterfacesRear Panel Interfaces ModemConnecting to the Terminal Port Using the Asynchronous Terminal InterfaceInitiating an ATI Session SelectMain Menu Use the screen format Status Test Configuration Control Load FromScreen Format Types What Affects Screen DisplaysMenu Path Screen Work AreasNavigating the Screens Keyboard KeysPress For the screen Select Press Return to Function Screen Function KeysExample Switching to the Screen Function Key AreaEnding 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 DSUViewing System and Test Status Main Menu → Status → System and Test StatusSystem and Test Status Health and Status SELF-TEST Results 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 → TestTable A- 2, Network Interface Options Device Messages Loopback Type Initiated ByRunning Network Tests Main Menu → Test → Network TestsNetwork Tests CSU or External Network Loopback Send V.54 Up/Down Sequences DSU or Internal Network LoopbackTest Pattern for the Network Running Data Port Tests Main Menu → Test → Data Port TestsData 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 ClockTable A-3. Data Port Options 2 Carrier Control by RTSRlsd Control 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 2Configuration Worksheets Configuration Option SettingsWorksheets Network Interface Cables and Pin Assignments Signal Direction Pin # Terminal Port EIA-232 ConnectorUser Data Port Connector SignalNumber Direction Pin Socket Connector 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