Patton electronic Term Green, 3088/D with the X.21 interface, TM/ER Red, Test Modes, Loopbacks

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Term (Green)

The Term LED glows solid under the following circumstances:

•3088/CA with V.35 interface: If the serial interface has asserted DTR

•3088/D with the X.21 interface:

–Conﬁgured as DCE : Indicates that the “Control” signals have been asserted.

–Conﬁgured as DTE : Indicates that the “Indication” signals have been asserted

TM/ER (Red)

The TM/ER LED is used to indicate that a test mode is in progress or an error has been detected. It blinks once every second while a test mode is starting. It glows solid while a test mode is in progress. It blinks once if an error is detected either during a test mode, or in normal DSL operation.

6.3 TEST MODES

The 3088 offers test modes in the form of loopbacks, PRBS pattern gen- erators, and combinations of both. This section discusses how the test modes work. Figure 12 is a block digram of the Model 3088 with respect to test modes.

511Pattern Generator

511BER

Meter

DSL

Framer

Line

DSL

Framer

511Pattern Generator

511BER

Meter

Figure 12. Model 3088 Block Diagram

Loopbacks

The 3088 supports both Local Analog Loopbacks (LAL) and Remote Digital Loopbacks (RDL). These can be initiated either from the optional front panel switches or by the console command dsl set loopback <offlalrdl>. The data path for the LAL is shown in ﬁgure 13.

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Contents User Manual Contents Operation Remote Console Manual InformationCompliance Information Radio and TV Interference FCC Part 68 Acta StatementIndustry Canada Notice CE NoticeService Warranty InformationTel +1 301 Email support@patton.com General Information FeaturesDescription Configuration Model 3088 3088/D version shownParameter Description Possible Default Values OFF, LAL Parameter Description Possible Default Configuring the DIP SwitchesSystem Reset Mode Software UpgradesDIP Switch Settings Conﬁguration Reset to Factory DefaultsPosition Function Factory Default S1-7 S1-1 Data Rate S1-8 TX Clock Setting DescriptionS1-7 S1-6 S1-5 S1-4 S1-3 S1-2 S1-1 Data Rate Kbps 1920 S2-5 S2-4 Clock Mode Description S2-6 SettingS2-5 S2-4 Clock Mode LoopsS2-3 Annex S2-1 Front Panel SwitchesS2-3 Annex A/B S2-2 Line ProbePage DSL Line Condition Good or Poor CRCHelp Commands System Conﬁguration CommandsSystem show clockmode Shows the clock mode System Status CommandsDSL Conﬁguration Commands Startup Delay Interval Interval totintDSL Status Commands Page Example Command Line Interface Session Remote ConsoleRocketlink Plug ‘N’ Play 3096RC Installation Connecting the Twisted Pair InterfaceConnecting the Model 3088/CA Serial Interface Connecting the Model 3088/CA V.35 to a DTE DeviceConnecting the Model 3088/D X.21 Serial Interface Connecting the Model 3088/CA V.35 to a DCE DeviceConnecting the Model 3088/D X.21 to a DCE or DTE Device Connecting the Model 3088/D to X.21 DTE or DCE Opening the CaseConnecting Power Operation POWER-UPPower Green LED Status MonitorsTM/ER Red Term Green3088/D with the X.21 interface Test ModesLocal Analog Loopback diagram PatternsRemote Console Manual Information How to ConnectEstablishing a Remote Console Session Page System show status command shows that DSL link is not up How to DisconnectDifferences in Local and Remote Control Session Behavior LAL Model 3088 Software Upgrade Feature Reset Configuration to Factory Defaults Appendix a Serial ConnectorDiagnostics Clocking ModesTransmission Line PowerCompliance Line Coding14 G.SHDSL Physical Connection Line InterfaceEnvironment Appendix B Model # DescriptionPin # Signal Appendix CPin Signal Appendix D