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Installation and Troubleshooting 2 - 3
If any of these items are damaged or missing, contact your local supplier or
a 3Com service representative.
3Com suggests you keep the carton and anti-static shielding bag in which
your unit was shipped in case you later want to repackage the unit for
storage or shipment.
We also suggest that you record the serial number of your Controller
Module. We have provided a log for this and other information specific to
modules under the Slot Usage Chart in Appendix B near the end of this
manual.
FCC Regulations
FCC regulations require that blank faceplates cover slots that are not being
used. To comply with this regulation, the concentrator is shipped with 15
blank faceplates and two empty slots. These two slots are left empty
because the ONline Controller Module and at least one media module must
be installed for the concentrator to be functional.
Caution: Do not turn the concentrator's power supply switch on
until you have:
❑ verified that the selected site meets the installation requirements
outlined in the following pages
❑ completed each of the steps outlined in Table 2-1.
– Be sure to verify that the correct voltage level has been
selected. An improper setting may damage the power
supply.