GarrettCom DS 880 - Manual (Page 28)

Magnum DS880 Dual-Speed Stackable Hubs Installation and User Guide (05/01)
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5.0 TROUBLESHOOTING
All Magnum Ethernet products are designed to provide reliability and consistently
high performance in all network environments. The installation of the Magnum DS880 10/100
Dual Speed Stackable Hub is a straightforward procedure (see INSTALLATION, Section 2.6);
the operation is also straightforward and is discussed in Section 4.
Should problems develop during installation or operation, this section is intended to
help locate, identify and correct these types of problems. Please follow the suggestions listed
below prior to contacting your supplier. However, if you are unsure of the procedures described
in this section or if the Magnum DS880 10/100 Dual Speed Stackable Hub is not performing as
expected, do not attempt to repair the unit; instead contact your supplier for assistance or contact
GarrettCom Customer Support.
5.1 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. Make sure that an AC power cord is properly attached to each Magnum DS880 10/100
Dual Speed Stackable Hub unit. Be certain that each AC power cord is plugged into a
functioning electrical outlet. Use the PWR LEDs to verify each unit is receiving
power.
4. If the problem is isolated to a network device other than the Magnum DS880 10/100
Dual Speed Stackable Hub 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 5 below. If the problem is corrected, the Magnum DS880 10/100
Dual Speed Stackable Hub and its associated cables are functioning properly.
5. If the problem continues after completing Step 4 above, contact your supplier of the
Magnum DS880 10/100 Dual Speed Stackable Hubs unit or if unknown, contact
GarrettCom, Inc.by fax, phone or email ([email protected]) for assistance.