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Paradyne 727 manual Resetting the DSU, Displaying DSU Identity Information, in Appendix D, Model

Models: 727

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in Appendix D, Model 7510

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
	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.	3.	If getting excessive Loop Loss
	stuck in Autobaud mode.		(dB) indications, install a higher
			(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		H	Contact your service
LED is on after			representative.
power-up.			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

Image 47

Paradyne 727 manual Resetting the DSU, Displaying DSU Identity Information, in Appendix D, Model, Results Messages, Table

Contents

AREA CODE CHANGE March MODEL 7510 DSUUSERS GUIDE Document No. 7510-A2-GB20-00Trademarks Warranty, Sales, and Service InformationCopyright 1997 Paradyne Corporation 1About the DSU Contents2Using the Asynchronous Terminal Interface About This Guide4Monitoring the DSU 5Testing6Messages and Troubleshooting CCables and Pin Assignments AConfiguration Option TablesDTechnical Specifications Glossary Index BWorksheetsSection About This GuideDocument Purpose and Intended Audience Document SummaryDocument Number Product-RelatedDocumentsSection DescriptionModel 7510 DSU Features About the DSUTypical DSU Configurations Rear Panel Interfaces User InterfacesConnecting to the Terminal Port Using the Asynchronous Terminal InterfaceSelect Initiating an ATI SessionWhat Affects Screen Displays Screen Format TypesScreen Work Areas Keyboard Keys ProcedureNavigating the Screens And press Return to Screen Function KeysFor the screen SelectProcedure Switching to the Screen Function Key AreaEnding an ATI Session ProcedureIdentifying the Device and System Customizing the DSUIf you select Saving Configuration OptionsProcedure ProcedureProcedure Configuring the DSUConfiguration Option Areas Accessing and Displaying Configuration OptionsWhat to Monitor Monitoring the DSUViewing System and Test Status hhh mm ss Health and Statushhh mm ss hhh mm ssWhat Message Indicates Self-TestResultsTable 4-2.Health and Status Messages 2 of MessageMeaning Test Status MessagesTable 4-4.Test Status Messages Test Status MessageWhat the Status Indicates Viewing Network Interface StatusField StatusViewing Network Performance Statistics Monitoring the LEDs TEST ALARMSystem LEDs 4-10 OOS ± Out of ServiceNS ± No Signal Network LEDsRXD ± Received Data Port LEDs4-11 TXD ± Transmitted DataAccessing the Test Menu TestingInitiated By TestingTable 5-1.Device Messages Loopback TypeRunning Network Tests CSU or External Network Loopback ProcedureSend V.54 Up/Down Sequences ProcedureProcedure DSU or Internal Network Loopback511 Test Pattern for the Network ProcedureProcedure Running Data Port Tests Testing511 Test Pattern for the DTE ProcedureProcedure Local LoopbackRunning the Lamp Test ProcedureProcedure 5-10 Ending an Active TestResponding to Device Messages Messages and TroubleshootingMessages and Troubleshooting HResponding to Device Messages HTroubleshootingWhat Message Indicates Messages and TroubleshootingTable 6-1.Device Messages 2 of Device MessageSolutions TroubleshootingTable 6-2.Troubleshooting 1 of SymptomResults Messages, Table Resetting the DSUDisplaying DSU Identity Information in Appendix D, ModelOverview Configuration Option TablesConfiguration Options in Chapter DDS Line Rate Kbps Possible Settings Internal, External, ReceiveSystem Options Menu Operating ModeTest Duration min Test TimeoutTable A-1.System Options 2 of LADS Line Rate KbpsNetwork Interface Options Menu Port DTE Initiated Loopbacks Possible Settings Disable, Local, Remote, BothData Port Options Menu Invert Transmit ClockRLSD Control Table A-3.Data Port Options 2 ofCarrier Control by RTS CTS ControlMonitor DTR Inactivity TimeoutTerminal Port Options Monitor DTRDisconnect Timeminutes Table A-4.Terminal Port Options 2 ofSystem WorksheetsConfiguration Worksheets OverviewSettings Configuration OptionSettings Configuration OptionOverview Cables and Pin AssignmentsHTerminal Port EIA-232Connector HV.35 User Data Port ConnectorTerminal Port EIA-232Connector V.35 User Data Port Connector Standard EIA-232-DCrossover Cable Modular RJ48S DDS Network Interface Cable LAN Adapter Converter and CablePower Technical SpecificationsHousing WeightPage GL-1 GlossaryGL-2 GL-3 IN-1 IndexNumbers IN-2 IN-3