In my environment, I have few T5220. On the iLOM Management Card, I have both Network and Serial port are cabled, I don't have any issues while I try to connect using Network Management port, but when I try to connect the serial port for the same server which is actually connected through a terminal server, authentication to the terminal server is successful and conformed port is opened, but cant able to view the console of the server.
So how do I need to make sure to enable the serial port on iLOM.
"but cant able to view the console of the serve": do you mean > start /SP/console doesn't work?
For your information: the console access is unique. that means that only one user can get R/w accces to the console. Others accès are only in view mode.
May need to give more information for better appreciation of your problem.