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Chapter 5 R2MFC MBM maintenance 57
Digital Mobility System Installation and Configuration Guide
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 8 for a description of the diagnostic and loopback modes.
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:
1 Set 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 101.
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.
2 Perform desired testing.
3 Reset 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.
Table 8 Diagnostic and loopback modes
Mode Description Call
Availability
Diagnostic Mode 1 Routes the E1 transmit signal from the BCM through the
R2MFC MBM out to the bantam jack.
Available to
process calls
Diagnostic Mode 2 Routes the E1 transmit signal from the CO through the
R2MFC MBM out to the bantam jack.
Available to
process calls
Diagnostic Mode 3 Routes the E1 received signal from the BCM out to the
bantam jack without any interaction with the R2MFC MBM.
Available to
process calls
Loopback mode 1
(continuity mode)
Routes the E1 signal received from the CO back out to the CO
without any interaction with the R2MFC MBM.
Not available to
process calls
Loopback mode 2
(card edge loopback)
Routes the E1 tranmitted signal from the BCM through the
R2MFC MBM and back to the BCM.
Not available to
process calls
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 1
- Trademarks 2
- Enhanced 911 Configuration 3
- Radio-frequency Interference 3
- Hearing Aid Compatibility 4
- Important Safety Instructions 4
- Limited Warranty 7
- Warranty Repair Services 8
- After Warranty Service 8
- Contents 9
- 14 Figures 14
- Tables 16
- Before you begin 17
- How to get help 18
- Preface 19 19
- Acronyms 20
- Chapter 1 21
- Overview 21
- R2MFC MBM faceplate elements 22
- System Status LEDs 23
- Config DIP switches 23
- RS232 port 24
- E1 Status LEDs 24
- Bantam jacks 24
- BNC and RJ-48 connectors 24
- Power connectors 24
- MBM DIP switches 25
- 26 Chapter 1 Overview 26
- Chapter 2 27
- Installation process map 28
- R2MFC MBM setup requirements 29
- Environment checklist 30
- Electrical requirements 30
- Software requirements 30
- Chapter 3 31
- Installing the R2MFC MBM 31
- Installing an R2MFC MBM 32
- Reconnecting the equipment 33
- Removing an R2MFC MBM 35
- Wiring an R2MFC MBM 37
- Chapter 4 41
- Configuring the R2MFC MBM 41
- Physical line characteristics 42
- E1 framing 42
- Line signaling 42
- Register signaling 43
- End of dialing (outgoing) 44
- Disable ANI 44
- Default category 44
- Default subscriber status 44
- Setting Config DIP switches 45
- E1 Framing 47
- Signaling 48
- Turning on second dial tone 52
- Chapter 5 55
- R2MFC MBM maintenance 55
- Clock synchronization 56
- Diagnostic tools 57
- Alarms Measurements 58
- Alarms propagation 59
- Faceplate LEDs 60
- Logs and traces 61
- Error messages 61
- Replacing an R2MFC MBM 62
- Upgrading firmware 63
- Chapter 6 67
- Command Line Interface (CLI) 67
- Accessing the CLI 68
- Commands 69
- LOad directory 69
- INfo directory 69
- VIew directory 70
- CNtrl directory 71
- COnfig directory 73
- ALarm directory 75
- SWerr directory 77
- MFC directory 78
- R2 directory 81
- PRI directory 83
- Appendix A 85
- Country code defaults 87
- MFC register signaling 88
- Mexico Config 2 89
- Brazil Config 1 92
- Brazil Config 2 94
- Argentina Config 1 96
- N0027684 01 100
- Appendix B 101
- Appendix C 103
- MFC Signal Definitions 103
- 104 MFC Signal Definitions 104
- Appendix D 105
- CLI Cable Pinout 105
- 106 CLI Cable Pinout 106
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