Rockwell Automation 57C570 AutoMax PC3000 User Manual - Manual (Page 236)

21Ć4
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Figure 21.4 Ć Disconnecting an Intermediate Drop from the Network Cable System
Step 4. Resume network operation.
21.1.3 Maintaining the Coaxial Cable System
Even if the installation is done properly, the AutoMax network may
still experience some unexpected downtime. This may be due to
gradual degradation of the cable system components or changes in
the environmental conditions along the cable path. Because of this,
some limited preventive maintenance is required.
Keep the network cable system documentation upĆtoĆdate with all
changes made to the network configuration during the life of the
network.
When old equipment is relocated or new equipment is installed, new
sources of heat, electrical noise, hazardous chemicals, and other
changes in the network cable system environment may occur.
Evaluate the effect these changes have on the performance of the
network. If necessary, take corrective action such as rerouting
certain AutoMax network cable segments and adding shielding to
the cable system components.
21.1.4 Inspecting the Cable System
Inspect the AutoMax network cable system periodically for damage,
shorts, and discontinuity. To perform these tests, use the appropriate
time domain reflectometer (TDR) for the cable length. TDRs can be
also used to perform cable testing during the installation or to locate
a possible cable fault during troubleshooting. All tests should be
properly documented.
21.2 Maintaining the FiberĆOptic DCSĆNET
Network
Refer to this section for information about maintaining the fiberĆoptic
DCSĆNET network.