Table 4-1. Applying Power Suggestions (Continued)

Problem

Troubleshooting Suggestions

 

 

 

Master Mgt LED not lit.

Check if another EMM in the

 

 

concentrator is master.

 

 

 

 

 

If there is only one EMM in the

 

 

concentrator, verify that it is set to a

 

 

mastership priority of 10 (using the

 

 

SHOW MODULE {slot} VERBOSE

 

 

command) and then press the reset

 

 

button on the EMM.

 

 

 

 

 

Try the suggestions for the previous

 

 

problem.

 

 

 

EMM and Terminal Interface

Follow the directions in Chapter 2 for attaching your terminal to the EMM using the RS-232 serial port connector. Table 4-2 lists some common problems that may occur when trying to get the EMM to communicate with the terminal.

Table 4-2. EMM Terminal Interface Suggestions

Problem

Troubleshooting Suggestions

 

 

Nothing appears on the screen.

Make sure the RS-232 cable meets the

 

specifications detailed in Appendix B.

 

 

 

Make sure the RS-232 cable is

 

securely connected to both devices.

 

See Chapter 2 for installation

 

instructions.

 

 

 

Verify that the baud rates match for

 

the terminal and the EMM.

 

 

Troubleshooting 4 - 3

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3Com 5101M-MGT installation and operation guide EMM and Terminal Interface, EMM Terminal Interface Suggestions