6-2
Configuration System Failure
If the access controller is operational upon power-on, the configuration terminal displays the boot
information; otherwise, you may see nothing or illegible characters on the configuration terminal.
No Display on the Terminal
If there is no information display on the configuration terminal after the access controller is powered on,
please check:
z
Whether the power LED is solid green.
z
Whether all LEDs are off or blinking. If so, the main control board is abnormal.
z
Whether the console cable is connected to the console port of the main control board.
If the cause cannot be located in the steps above, the possible reasons are as follows:
z
The serial interface to which the console cable is connected is not the one specified in the terminal
emulation program.
z
Terminal settings are incorrect. The required settings are as follows: 9600 bits per second, 8 data
bits, no parity check, 1 stop bit, no flow control, and VT100 for terminal emulation type.
z
The console cable is not in good condition.
Illegible Characters on the Terminal
z
If illegible characters are displayed, check whether the connection of the console cable is loose.
