GarrettCom Magnum ES42 Series Installation And User Manual page 71

ES42 Series Edge Switches
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.
4. Make sure that an AC power cord is properly attached to each Magnum
ES42-Series unit. Be certain that the AC power cord is plugged into a
functioning and appropriate electrical outlet. Use the PWR LEDs to verify
each unit is receiving power.
5. If the problem is isolated to a network device other than the Magnum
ES42 Series 10/100 Mb/s switch product, it is recommended that
the problem device is replaced with a known good device. Verify whether or
not the problem is corrected. If not, go to Step 6 below. If the problem is
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