Comtech EF Data STS11/STS11L - Manual (Page 23)

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Chapter 4. MAINTENANCE AND
TROUBLESHOOTING
4.1 Basic Troubleshooting and Maintenance
This section provides information on the basic troubleshooting and repair
procedures for the Solid-State Transfer Switch that may be performed on-site by
qualified personnel. Only minor repairs will be discussed. For serious failures,
the user should not attempt to repair the unit without first contacting Customer
Service for further information and instructions.
4.2 Basic User Checks
Upon the detection of an operational failure, the source of the failure must be
determined. Basic user checks include checking the power line fuses, and the
various cables and connectors.
4.2.1 Checking the Cabling and Connectors
Problems that appear difficult to solve can often be traced to a loose or defective
cable or connector. The user should first verify the following:
• All cables within the system have no broken or loose connections.
Cables that are suspect should be replaced.
• All jacks on the units have no bent or broken pins.