Paradyne 7924 manual Starting and Stopping Loopbacks

Page 40

Testing

Starting and Stopping Loopbacks

To start or stop a local loopback test, enter 5 at the Main Menu Command prompt.

Command→ 5

Local Loopback is Enabled!

Command→ 5

Local Loopback is Disabled!

To start or stop a remote loopback test, enter 6 at the Main Menu Command prompt.

Command→ 6

Remote Loopback is Enabled!

Command→ 6

Remote Loopback is Disabled!

HWhen you stop a loopback test (local or remote), both units automatically reset themselves in order to return to normal operation.

HA loopback may not be started on units that have just been reset. After a reset, the units require approximately one minute for the circuit (HDSL connection) to stabilize. If you attempt to start a loopback during this time, the following error message appears: ªPLEASE WAIT! Circuit is stabilizing.º

HOnly one loopback may be run at a time. If a loopback is already enabled, the following error message appears and no other loopback may be started until the first loopback is disabled: ªCANNOT EXECUTE COMMAND! Current loopbacks must be removed first.º

7-4

October 1997

7924-A2-GB20-30

Image 40

Contents Model 7924 Standalone T1 Hdsl Termination Unit Copyright 1997 Paradyne Corporation All rights reserved Warranty, Sales, and Service InformationTrademarks Important Safety Instructions EMI Warnings Contents Customizing V.35-Compatible Units Cable Pin Assignments IiiDocument Purpose and Intended Audience About This GuideDocument Summary Product-Related Documents Document Number Document TitleAbout HotWire Model Termination Units HotWire 7924-A1 Models and FeaturesModel Number Features Typical Configurations Campus Network ApplicationsDCS Cellular Network Access User Interface TypesPackage Checklist for HotWire Model 7924-A1 Installing the UnitOverview Connecting to the Network Connecting Power to the UnitProcedure DSX-1-Compatible HotWire 7924 ± Rear PanelChoosing an Interface Mode Using Terminal and Switchpack ModesConnecting to a System Terminal Switching Between Terminal and Switchpack Modes Accessing Configuration Options Customizing DSX-1-Compatible UnitsMaking Changes from the Terminal Interface DSX-1-Compatible Units Configuration Options 1 Hdsl Card TypeDSX-1-Compatible Units Configuration Options 2 Making Changes in Switchpack Mode Displaying Switchpack DefinitionsSwitchpack Settings for Line Build OUT Displaying Line Build-Out DefinitionsCustomizing V.35-Compatible Units Customizing V.35-Compatible Units V.35-Compatible Units Configuration Options ± 6 x 64 384 kbps ± No change to rateMaking Changes in Switchpack Mode CO/CP OFF=CP, ON=CO Monitoring the Unit What to MonitorBoard Status for DSX-1-Compatible Unit Board StatusBoard Status for V.35-Compatible Unit Performance Statistics Performance Statistics for DSX-1-Compatible Unit Performance Statistics for V.35-Compatible UnitRemote Unit Information DSX-1-Compatible Unit Front Panel LEDsMeaning Compatible Unit Detecting a Problem TestingUnderstanding Loopback Tests Local Loopbacks Local Loopback, Initiated at the CO UnitRemote Loopbacks Remote Loopback, Initiated at the CO UnitStarting and Stopping Loopbacks Resetting the Unit Worksheets DSX-1-to-DSX-1 Configuration DSX-1-to-V.35 Configuration LANTime Slot DS0 Assignments Unframed OperationPayload Rate DSX-1 T1 DS0s Used DSX-1-Compatible Units Configuration Worksheet Compatible Units Configuration WorksheetCable Pin Assignments Terminal Connection Cable Pin AssignmentsHdsl Loop Connection Cable Pin Assignments PinT1 Network Connection Cable Pin Assignments Direction Code Pin Name Connection Cable Pin AssignmentsFunction Description Jumper Pins Factory-Setting Switchpacks and JumpersDSX-1-Compatible Units Switchpacks and Jumpers Compatible Units Jumper P8 Factory defaults GlossaryGL-1 COM portGL-2 ResetLoopback Index IN-1IN-2 Index