3Com RMON-EMP-3 installation and operation guide 2. Troubleshooting Malfunctions Continued

Models: RMON-EMP-3

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Table 4-2. Troubleshooting Malfunctions (Continued)

Symptom

Possible Cause

Corrective Action

 

 

 

 

The terminal fails to

The terminal is not

Power off the terminal,

respond to

receiving

wait 30 seconds, and

commands entered

commands.

then power it on again.

at the keyboard

 

 

 

The keyboard cable

If the terminal still does

 

 

is attached

not respond to

 

incorrectly.

commands, power off the

 

 

 

terminal and disconnect

 

 

 

the keyboard cable. Then

 

 

 

reattach the keyboard

 

 

 

cable and power on the

 

 

 

terminal.

 

 

 

 

 

The RS-232 port is

Check the state of the

 

malfunctioning.

Serial Activity LED on the

 

 

 

module faceplate (see

 

 

 

Figure 2-3). If the LEDs

 

 

 

indicate a problem,

 

 

 

contact your 3Com

 

 

 

representative for

 

 

 

assistance.

 

 

 

 

 

 

 

Verify the RS-232 port

 

 

 

configuration using the

 

 

 

RMON configuration

 

 

 

menus. Ensure the

 

 

 

RS-232 port is configured

 

 

 

to 9600 baud, 8-bit, no

 

 

 

parity, and 1 stop bit.

 

 

 

 

4 - 6 Ethernet RMON MultiProbe Module Installation and Operation Guide

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3Com RMON-EMP-3 installation and operation guide 2. Troubleshooting Malfunctions Continued