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IPS42 Internal Power Supply Installation and User Guide (11/09)
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4.1 Before Calling for Assistance
1. If difficulty is encountered when installing or operating the unit, refer back
to the Installation Section of the applicable chapter of this manual. Also
check to make sure that the various components of the network are
interoperable.
2. Check the cables and connectors to ensure that they have been properly
connected and the cables/wires have not been crimped or in some way
impaired during installation. (About 90% of network downtime can be
attributed to wiring and connector problems.)
3. If the fiber port does not link up while connecting to other device, do a quick
Loop test to test the fiber transceiver is functional or not. Use a short patch
cable of fiber and connect one end of cable to transmit and other end of
receive to the fiber port transceiver. If the Link Led turns solid green, then
the fiber port is functional and working.