Nortel Networks R2MFC manual Line signaling, Register signaling

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Chapter 5 Configuring the R2MFC MBM 47

Line signaling

Line signaling (for example, seize, answer, and disconnect) are implemented by R2 Channel Associated Signaling known as ABCD bits. Only the two bits AB are used for line signaling. The state (value) of the bits indicate the signal.

The channels are always bidirectional, (that is, they accept incoming calls or originate outgoing calls). The channel behavior also supports one-way trunks. The direction of the signal does not need to be configured. Because the R2MFC MBM is passive, the R2MFC MBM does not initiate calls; it only passes call origination attempts from one side to the other. The R2MFC MBM assumes that the two sides (BCM and CO) respect the direction of the trunk as agreed between them.

The meaning of the bit states are part of the country-specific parameters; however, they can be customized through the CLI by using commands in the R2 directory.

The following are additional options included in country-specific parameters:

•use backward force-release signal to clear back (yes/no)

•release-guard state (timer) when clearing back (timer value)

•optional CD bits value (usually ignored)

Register signaling

Register signaling (digits transmission) is implemented by in-band dual-tone signals known as MFC-R2. Physically, there are 15 forward signals and 15 backward signals. The standard defines two stages of the signaling. The meaning of the signal depends on the stage and the direction of the call. In total, there are four tables of 15 signals each. See Appendix A, “Configuring DIP switch settings and definitions,” on page 91 for MFC country-specific signal tables.

The meaning of MFC signals can be different when transmitted or received. MFC signal tables are part of the country-specific parameters. The meaning of the MFC signals in the R2MFC MBM are configurable through the CLI by using commands in the MFC directory.

The following are other options included in country-specific parameters:

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 SafetyRadio-frequency Interference Enhanced 911 ConfigurationR2MFC Media Bay Module Installation and Configuration Guide 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 Audience Getting startedAbout this guide Acronyms Before you beginSymbols and text conventions Convention Example Used for PswdRelated publications Getting started NN40010-300 General information Chapter OverviewOverview Administration and maintenance toolsR2MFC MBM faceplate elements 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 MBMShutting down a BCM 4.0 system Installing the R2MFC MBMShutting down the 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 MBME1 framing MFCR2 side External Link configurable parametersPhysical line characteristics 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 ManagerConfiguring the R2MFC MBM Inter-working functionality Chapter R2MFC MBM maintenanceTranslation of Subscriber Status R2MFC MBM maintenanceClock synchronization 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 Overview Chapter Command Line Interface CLIUsers and passwords 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 CLI commands Sheet 1 COnfig directoryCNtrl directory CLI commands Sheet 3 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 settingsMexico Config 1 R2 A/B signals Country code defaultsMexico Config Meaning Signal Interpretation of received MFC signalsInterpretation of transmitted MFC signals Sheet 1 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 MFC signal meaning Appendix C MFC Signal DefinitionsMFC signal definitions MFC Signal Definitions NN40010-300 Cable pinouts Appendix D CLI Cable PinoutCLI Cable Pinout NN40010-300