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MODEM 325 AND MODEM 325 CARD
Disconnect power before performing maintenance. Although dangerous voltage levels are
not exposed, disconnecting power will ensure no electric shock hazard is present.
The modem contains no internal electronic components that can be serviced or replaced by the user.
Repairs should not be attempted by the user.
10.1 Relacing the Fuse
If a fuse fails, replace it with one of equal rating. Repeated failure indicates a more serious problem. If
this happens, refer to the section on maintenance.
10.2 Cleaning
The modem provides maintenance free service. Periodically, you must remove dust that has collected on
internal components. Remove dust with a soft bristle brush and low pressure air or vacuum.
10.3 Preparing for Tests
Before attempting diagnostic tests, check that all connectors and plugs are firmly inserted. The test
procedures will identify the faulty component in a bad communications link. See
troubleshooting instructions.
If the modem appears faulty, call for technical support. Do not return the modem without prior
instructions.
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10. Maintenance
WARNING
for
Appendix B
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