Cannot Establish A Local (Out-Of-Band) Management Session - Allied Telesis AT-9408LC/SP Installation Manual

Chapter 3: Troubleshooting

Cannot Establish a Local (Out-of-Band) Management Session

66
If you are unable to establish a local (out-of-band) management session
with the switch through the terminal port on the front panel, do the
following:
Check to be sure that the RJ-45 serial management cable is securely
connected to the serial terminal port on the switch and to the RS-232
port on the terminal or personal computer.
Check to be sure that the operating parameters on the terminal or the
terminal emulation program have been set correctly. The default
settings for the RJ-45 serial terminal port are located in "Starting a
Local Management Session" on page 56.