Allied Telesis AT-MCF2000M - Manual (Page 63)

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Chapter 3
Troubleshooting
This chapter contains suggestions on how to troubleshoot
the AT-MCF2000M Management Module if a problem
occurs.
Problem 1: The Power LED on the module is off.
Solutions: Try the following:
ˆ Check the Status LED on the power supply module in
the chassis. The LED should be steady green. If the
LED is off or signalling a fault condition, refer to the
chassis or power supply’s Installation Guide for
troubleshooting instructions.
ˆ Check that the AT-MCF2000M Management Module is
fully inserted into the management slot in the chassis.
ˆ Try replacing the module with another management
module.
Problem 2: You are unable to start a local management
session on the management module.
Solutions: Try the following:
ˆ Verify that the RS-232 Serial Management Cable is
securely connected to the RS-232 Terminal port on the
module and to the port on the terminal or personal
computer.
ˆ Verify that the communications settings for the RS-232
port on the terminal or personal computer are set
correctly. For the appropriate settings, refer to “Starting
a Local Management Session” on page 56.
ˆ If the stack has two management modules, view the
Master LED on the module where you are trying to
start the management session. The LED should be
green, indicating that it is the master manager module
of the stack. If the LED is off, the module is in the
redundant state. You must start your local
management session on the other management
module in the stack.