Whenever there is problem with the physical entity or it goes failed so the board cannot work normal and it may results in services interruption. You will face such problem when the power-on sensor board is faulty.
I will talk about the troubleshooting process, how we can find out, where & what is the problem, here we go:
First Step, Login in to your NE40E and issue the following command to check whether “MonitorBus Version” is older than 19 or the softeware version is older than 3.6
If it so then use the following commands to upgrade both
upgrade lpu 1 startup monitorbus // to upgrade s/w version
upgrade lpu by-testbus 1 startup mbus_epld // to upgrade the logical version
Now check the problem is resolve or not. If it is not resolve then perform the following task where we will turn-off and turn-on the power modules to check the master and slave behavior:
power off slot 1 //Power off the board
power on slot 1 //Power on the board
If you see that the problem is resolved means all the trap alarms are cleared in NE40E so this indicates that there is problem with the power supply which needs to be replaced but if still the trap alarms are there in NE40E then you have to send some detail information from NE40E like “display trapbuffer”, “terminal monitor” and “terminal trapping” which will be studied in detail to find the root cause for the problem.
I Hope this will be informative for you.