Nortel Networks manual Diagnostic tools, Setting the R2MFC MBM to diagnostic mode

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Chapter 6 R2MFC MBM maintenance 63

Diagnostic tools

The R2MFC MBM has three diagnostic settings and two loopback settings available to help with the troubleshooting process. When the R2MFC MBM is running in diagnostic or loopback mode, the signals from the BCM to the CO, or from the CO to the BCM, can be intercepted by placing diagnostic equipment in the bantam jacks on the front of the R2MFC MBM. This allows the external MFCR2 link, or the internal E1, to be checked for communication errors. The signal can be traced from start to finish, helping to determine the source of the errors.

See Table 10 for a description of the diagnostic and loopback modes.

Table 10 Diagnostic and loopback modes

Mode

Description

Call

 

 

Availability

 

 

 

Diagnostic Mode 1

Routes the E1 transmit signal from the BCM through the

Available to

 

R2MFC MBM out to the bantam jack.

process calls

 

 

 

Diagnostic Mode 2

Routes the E1 transmit signal from the CO through the

Available to

 

R2MFC MBM out to the bantam jack.

process calls

 

 

 

Diagnostic Mode 3

Routes the E1 received signal from the BCM out to the

Available to

 

bantam jack without any interaction with the R2MFC MBM.

process calls

 

 

 

Loopback mode 1

Routes the E1 signal received from the CO back out to the CO

Not available to

(continuity mode)

without any interaction with the R2MFC MBM.

process calls

 

 

 

 

 

Loopback mode 2

Routes the E1 tranmitted signal from the BCM through the

Not available to

(card edge loopback)

R2MFC MBM and back to the BCM.

process calls

 

 

 

Setting the R2MFC MBM to diagnostic mode

The R2MFC MBM is placed in diagnostic or loopback modes by setting the Config DIP switches in either the diagnostic or loopback position. Perform the following steps to set the R2MFC MBM into either diagnostic or loopback mode:

1Set the Config DIP switches to the desired diagnostic or loopback mode while the R2MFC MBM is still powered up. See See Appendix B, “Diagnostic and loopback DIP switch settings,” on page 109.

The selected diagnostic or loopback mode becomes active five seconds after the last DIP switch change. The last country configuration stays in effect until a restart occurs.

2Perform desired testing.

3Reset the DIP switches back to the appropriate country code after testing has been completed so that the correct country code is read upon a restart.

Warning: Restarting the R2MFC MBM, while the Config DIP switches are in a diagnostic or loopback mode, causes the R2MFC MBM to start up in the diagnostic or loopback mode with the default country setting of Mexico config 1.

R2MFC Media Bay Module Installation and Configuration Guide

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Contents R2MFC Media Bay Module Installation and Configuration Guide North American Regulatory Information SafetyEnhanced 911 Configuration R2MFC Media Bay Module Installation and Configuration GuideRadio-frequency Interference NN40010-300 Important Safety InstructionsHearing Aid Compatibility RepairsInternational Regulatory Information NN40010-300 Contents Chapter Preparing to install the R2MFC MBM Chapter R2MFC MBM maintenance Appendix a Configuring DIP switch settings and definitions MFC Register Signaling Panama Config 1 NN40010-300 Getting Help through a Nortel distributor or reseller How to Get HelpGetting Help over the phone from a Nortel Solutions Center Getting Help from the Nortel Web siteHow to Get Help NN40010-300 Getting started About this guideAudience Acronyms Before you beginSymbols and text conventions Convention Example Used for PswdRelated publications Getting started NN40010-300 General information Chapter OverviewAdministration and maintenance tools R2MFC MBM faceplate elementsOverview System Status LEDs Config DIP switchesE1 Status LEDs BNC and RJ-48 connectorsR2MFC MBM back and underside elements RS232 portMBM DIP switches Power connectorsOverview NN40010-300 Chapter Preparing to install the R2MFC MBM Host system setup requirements Installation process mapHost system setup requirements Preparing to install the R2MFC MBMConfig DIP switches R2MFC MBM setup requirementsCustomer supplied hardware requirements Overview of the R2MFC MBM installation Chapter Installing the R2MFC MBMInstalling the R2MFC MBM Shutting down the systemShutting down a BCM 4.0 system Shutting down the BCM 4.0 system hardware Shutting down a BCM 3.7 or lower systemInstalling an R2MFC MBM in the BCM platform base chassis Installing an R2MFC MBMInstalling an R2MFC MBM in the expansion unit Installing the rubber boot in an R2MFC module Installing an R2MFC MBM in the BCM50 expansion unitR2MFC Transmit Co-axial cable connected to the MBM Removing an R2MFC MBM Reconnecting the equipmentRemoving an R2MFC MBM from the BCM platform base chassis How to remove a BCM200 R2MFC MBMRemoving an R2MFC MBM from the expansion unit How to remove a BCM400 R2MFC MBMHow to remove the expansion unit front bezel Wiring an R2MFC MBMInstalling the R2MFC MBM Trunk wiring overview Connecting an R2MFC MBM to a service providerInstalling the R2MFC MBM Configuring the R2MFC MBM Chapter Configuring the R2MFC MBMMFCR2 side External Link configurable parameters Physical line characteristicsE1 framing Register signaling Line signalingOption Parameters Meaning Default Minimum or fixed number length + timer parametersSetting Config DIP switches Configuring the MFCR2 external linkCreating a customized country code Config DIP switch layoutE1 framing default parameters PRI side Internal Link configurable parametersLayer 2 signaling parameters Configuring the PRI internal linkSignaling Configuring the PRI internal link using Element ManagerParameter Setting Module configuration parametersBCM lines configuration for R2MFC MBM Configuring the PRI internal link using Unified ManagerModule type BCM module configuration for R2MFC MBM Off Turning on second dial tone Turning on second dial tone using Element ManagerOutgoing dialing configuration for second dial tone Turning on second dial tone using Unified Manager Configuring the R2MFC MBM Inter-working functionality Chapter R2MFC MBM maintenanceR2MFC MBM maintenance Clock synchronizationTranslation of Subscriber Status Mode Description Call Availability Diagnostic toolsSetting the R2MFC MBM to diagnostic mode Diagnostic and loopback modesAlarms Measurements AlarmsAlarm Cause Alarms propagationIncoming signal errors Group I Alarms propagation Sheet 1System status monitor LEDs R2MFC MBM maintenance Group I Alarms propagation Sheet 2Group II alarms propagation Faceplate LEDsRed LED Error messagesLogs and traces LED Name Yellow LEDReplacing an R2MFC MBM Overview of module replacement processUpgrading firmware Connect using Hyper-terminal setup parametersProgram responds starting rec 0. Hit any key to continue R2MFC MBM maintenance NN40010-300 Chapter Command Line Interface CLI Users and passwordsOverview Command Line Interface CLI Accessing the CLILOad directory CommandsLOad directory CLI commands INfo directory CLI commandsVIew directory VIew directory CLI commandsCNtrl directory CNtrl directory CLI commands Sheet 1NN40010-300 COnfig directory CNtrl directory CLI commands Sheet 3COnfig directory CLI commands Sheet 1 NN40010-300 ALarm directory CLI commands Sheet 1 ALarm directoryNN40010-300 SWerr directory SWerr directory CLI commandsMFC directory MFC directory CLI commands Sheet 1MFC directory CLI commands Sheet 2 See Chapter , MFC Signal Definitions, on page 111 for MFC R2 directory R2 directory CLI commands Sheet 1Command Line Interface CLI R2 directory CLI commands Sheet 2 PRI directory PRI directory CLI commandsCommand Line Interface CLI NN40010-300 Shows the Config DIP switch layout Appendix a Configuring DIP switch settings and definitionsSecond dial tone DIP switch settings Country selection DIP switch settingsCountry code defaults Mexico ConfigMexico Config 1 R2 A/B signals Interpretation of received MFC signals Interpretation of transmitted MFC signals Sheet 1Meaning Signal Mexico Config Interpretation of received MFC signals Sheet 1 Mexico Config 2 R2 A/B signalsInterpretation of transmitted MFC signals Brazil Config 1 R2 A/B signals Brazil ConfigInterpretation of received MFC signals Brazil Config Brazil Config 2 R2 A/B signals Argentina Config Argentina Config 1 R2 A/B Signals Interpretation of received MFC signals Chile Config 1 R2 A/B signals Chile ConfigSignal Block Panama Config Configuring DIP switch settings and definitions NN40010-300 Diagnostics and Loopback Dip Switch Settings Appendix B Diagnostic and loopback DIP switch settingsDiagnostic and loopback DIP switch settings NN40010-300 Appendix C MFC Signal Definitions MFC signal definitionsMFC signal meaning MFC Signal Definitions NN40010-300 Cable pinouts Appendix D CLI Cable PinoutCLI Cable Pinout NN40010-300
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