AT&T 518-600-016 manual Basic Troubleshooting Procedures

Basic Troubleshooting Procedures

This section shows you how to diagnose and solve basic problems in the MERLIN II system. It also provides you with the procedures for making an on-line module swap in a Release 3 system.

Most of the troubleshooting procedures are based on identifying the symptom, determining whether it is hardware or software related, isolating the problem to one of the areas indicated in Figure 4-1,and replacing individual components in that area with components that are known to be working until the cause of the problem is identified and solved. If the problem lies with administration or programming, determine the correct procedure, then administer the system or program the voice terminals accordingly. Tie line troubleshooting is presented separately and is based on your being able to test individual ports to determine if they are functioning properly.

Problems that go beyond those caused by faulty but easily replaced components should be referred to the equipment supplier. Refer any problems involving the outside lines to the serving telephone company.

The following troubleshooting checklist is provided to

guide you through the necessary steps to troubleshoot a system. When a problem arises with the MERLIN II system, be sure to check first the items listed under “General Operating Condition’ in this section. If none of those items are the source of the trouble, go on to “Procedures for Specific Symptoms.” If the problem is not described under that heading, or if none of the tests reveal a specific problem, proceed to “General Tests” before calling the equipment supplier.

Basic Troubleshooting Procedures 4-1