Clear-Com Eclipse Median, Instruction Manual

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Vitec Group Communications
Eclipse Median Instruction Manual 6 - 3
FAIL-SAFE COMMUNICATION
In the event of a CPU card failure, the second CPU card takes over
operation of the system, while the first card is repaired or replaced.
TROUBLESHOOTING
When attempting to identify the cause of the trouble, it is helpful to
begin with the two most basic areas which cause malfunctions:
• The flow of electric current from the power supplies to the cards.
• The flow of data between the program software, the circuit cards, and
the attached remote devices.
The following sections discuss troubleshooting these two basic
categories of problems.
TROUBLESHOOTING POWER-SUPPLY PROBLEMS
General Principles
Electric current in the matrix starts at the power supplies, travels
through the matrix’s backplane connectors, and then travels to the
circuit cards themselves. When power-supply problems occur, those
three areas—the power supplies, the backplane connectors, and the
circuit cards—should be explored to identify where the trouble is
occurring. Solving power-supply problems starts with identifying the
specific component causing the problem.
Note: The matrix’s backplane connectors are part of the matrix’s
infrastructure and are not serviceable by field personnel. If
you determine that a problem is in the matrix’s backplane
connectors, you must send the matrix in for repair.
Backplane connector malfunctions are rare, but should be
considered as possiblities.Clear-Com will ship a spare
matrix to use while the damaged matrix is being repaired.
If you need to send any equipment back to Clear-Com,
follow the procedure described in the Warranty section of
this manual for obtaining a return authorization number
from the Service Department.
Clear-Com’s customer service department will consult on
the telephone about repair problems. For more information,
see the Warranty section of this manual.
A lit power-supply light on a component indicates that the matrix’s
electric current has traveled successfully to that component and is
powering the component. For example, if the power-supply lights on
the CPU card are lit, the electric current has successfully traveled from
the matrix’s power supplies to the CPU card.