How to locate the problem where the automatic worksheet system fails to provide service through TL1 interface?
Check and position the problem according to the following steps:
1. Check whether the communication between the automatic worksheet system and the network management system is normal;
2. Check whether the format of TL1 command is correct;
3. Connect to the 9819 port of the network management system and see whether TL1 command can be successfully run;
4. Check whether the related processes have been started in the network management system.
5. Check whether there is any problem with the operation port of network management interface.