Physical line characteristics, E1 framing | Nortel Networks R2MFC

46Chapter 5 Configuring the R2MFC MBM

MFCR2 side (External Link) configurable parameters

Physical line characteristics

The MBM has two options for physical connections on the faceplate:

1RJ-48 connector for twisted pair cable (line impedance of 120 Ohms)

2a pair of BNC connectors for coax cables (line impedance of 75 Ohms)

The BNC connectors can have one of the following:

•TX shielding connected to ground (default)

•RX and TX shielding not connected to ground

Only one of the two connector types can be active. The default active interface is the BNC connector. The BCN connector is part of the country-specific defaults for Mexico. Each of the country codes activates the appropriate connector, based on the country standard for connectors.

The active interface can be customized in the firmware through the CLI by using commands in the COnfig directory.

E1 framing

The external link uses Channel Associated Signaling on timeslot 16, therefore; TS16 multiframe format is always used. In addition, optional CRC4 multiframe can be used (for monitoring digital transmission quality), instead of basic “alternate frame” format.

The CRC4 multiframe option is activated by the firmware as part of the country-specific defaults.

PCM coding is A-law.

These settings can be customized in the firmware through the CLI by using commands in the ALarm directory.

Note: Changes made to the framing parameters must be configured in both the R2MFC MBM and the BCM.

NN40010-300

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Nortel Networks R2MFC manual MFCR2 side External Link configurable parameters, Physical line characteristics, E1 framing

Contents

R2MFC Media Bay Module Installation and Configuration Guide Safety North American Regulatory Information R2MFC Media Bay Module Installation and Configuration Guide Enhanced 911 ConfigurationRadio-frequency Interference Repairs Important Safety InstructionsHearing Aid Compatibility NN40010-300 International 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 from the Nortel Web site How to Get HelpGetting Help over the phone from a Nortel Solutions Center Getting Help through a Nortel distributor or reseller How to Get Help NN40010-300 About this guide Getting startedAudience Before you begin Acronyms Symbols and text conventions Pswd Convention Example Used for Related publications Getting started NN40010-300 Chapter Overview General information R2MFC MBM faceplate elements Administration and maintenance toolsOverview Config DIP switches System Status LEDs RS232 port BNC and RJ-48 connectorsR2MFC MBM back and underside elements E1 Status LEDs Power connectors MBM DIP switches Overview NN40010-300 Chapter Preparing to install the R2MFC MBM Preparing to install the R2MFC MBM Installation process mapHost system setup requirements Host system setup requirements R2MFC MBM setup requirements Config DIP switches Customer supplied hardware requirements Chapter Installing the R2MFC MBM Overview of the R2MFC MBM installation Shutting down the system Installing the R2MFC MBMShutting down a BCM 4.0 system Shutting down a BCM 3.7 or lower system Shutting down the BCM 4.0 system hardware Installing an R2MFC MBM Installing an R2MFC MBM in the BCM platform base chassis Installing an R2MFC MBM in the expansion unit Installing an R2MFC MBM in the BCM50 expansion unit Installing the rubber boot in an R2MFC module R2MFC Transmit Co-axial cable connected to the MBM Reconnecting the equipment Removing an R2MFC MBM How to remove a BCM200 R2MFC MBM Removing an R2MFC MBM from the BCM platform base chassis How to remove a BCM400 R2MFC MBM Removing an R2MFC MBM from the expansion unit Wiring an R2MFC MBM How to remove the expansion unit front bezel Installing the R2MFC MBM Connecting an R2MFC MBM to a service provider Trunk wiring overview Installing the R2MFC MBM Chapter Configuring the R2MFC MBM Configuring the R2MFC MBM Physical line characteristics MFCR2 side External Link configurable parametersE1 framing Line signaling Register signaling Minimum or fixed number length + timer parameters Option Parameters Meaning Default Configuring the MFCR2 external link Setting Config DIP switches Config DIP switch layout Creating a customized country code PRI side Internal Link configurable parameters E1 framing default parameters Configuring the PRI internal link using Element Manager Configuring the PRI internal linkSignaling Layer 2 signaling parameters Module configuration parameters Parameter Setting Configuring the PRI internal link using Unified Manager BCM lines configuration for R2MFC MBM Module type BCM module configuration for R2MFC MBM Off Turning on second dial tone using Element Manager Turning on second dial tone Turning on second dial tone using Unified Manager Outgoing dialing configuration for second dial tone Configuring the R2MFC MBM Chapter R2MFC MBM maintenance Inter-working functionality Clock synchronization R2MFC MBM maintenanceTranslation of Subscriber Status Diagnostic and loopback modes Diagnostic toolsSetting the R2MFC MBM to diagnostic mode Mode Description Call Availability Alarms Alarms Measurements Group I Alarms propagation Sheet 1 Alarms propagationIncoming signal errors Alarm Cause Faceplate LEDs R2MFC MBM maintenance Group I Alarms propagation Sheet 2Group II alarms propagation System status monitor LEDs LED Name Yellow LED Error messagesLogs and traces Red LED Overview of module replacement process Replacing an R2MFC MBM Upgrading firmware Hyper-terminal setup parameters Connect using Program responds starting rec 0. Hit any key to continue R2MFC MBM maintenance NN40010-300 Users and passwords Chapter Command Line Interface CLIOverview Accessing the CLI Command Line Interface CLI INfo directory CLI commands CommandsLOad directory CLI commands LOad directory VIew directory CLI commands VIew directory CNtrl directory CLI commands Sheet 1 CNtrl directory NN40010-300 CNtrl directory CLI commands Sheet 3 COnfig directoryCOnfig directory CLI commands Sheet 1 NN40010-300 ALarm directory ALarm directory CLI commands Sheet 1 NN40010-300 SWerr directory CLI commands SWerr directory MFC directory CLI commands Sheet 1 MFC directory MFC directory CLI commands Sheet 2 See Chapter , MFC Signal Definitions, on page 111 for MFC R2 directory CLI commands Sheet 1 R2 directory Command Line Interface CLI R2 directory CLI commands Sheet 2 PRI directory CLI commands PRI directory Command Line Interface CLI NN40010-300 Appendix a Configuring DIP switch settings and definitions Shows the Config DIP switch layout Country selection DIP switch settings Second dial tone DIP switch settings Mexico Config Country code defaultsMexico Config 1 R2 A/B signals Interpretation of transmitted MFC signals Sheet 1 Interpretation of received MFC signalsMeaning Signal Mexico Config Mexico Config 2 R2 A/B signals Interpretation of received MFC signals Sheet 1 Interpretation of transmitted MFC signals Brazil Config Brazil Config 1 R2 A/B signals Interpretation 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 Chile Config 1 R2 A/B signals Signal Block Panama Config Configuring DIP switch settings and definitions NN40010-300 Appendix B Diagnostic and loopback DIP switch settings Diagnostics and Loopback Dip Switch Settings Diagnostic and loopback DIP switch settings NN40010-300 MFC signal definitions Appendix C MFC Signal DefinitionsMFC signal meaning MFC Signal Definitions NN40010-300 Appendix D CLI Cable Pinout Cable pinouts CLI Cable Pinout NN40010-300