3Com 4924 Getting Started Guide - Page 56
Unit fails, no SNMP fan failure message is received - us air
UPC - 662705400631
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56 CHAPTER 4: PROBLEM SOLVING If a fan failure warning message is generated: 1 Power off the unit. 2 Check that the air vents are not obstructed. 3 Power cycle the unit. To do this, remove and reconnect the AC mains supply. If the unit has no AC main supply, remove and reconnect the DC RPS supply. 4 If another fan failure warning message is generated via the Command Line Interface or the Web interface, return the unit. Unit fails, no SNMP fan failure message is received 1 Power cycle the unit. To do this, remove and reconnect the AC mains supply. If the unit has no AC mains supply, remove and reconnect the DC RPS supply. 2 Check the command line interface (system summary command) to determine whether a thermal shutdown has occurred. 3 If no, return the unit: If yes, check that: ■ The air vents are not obstructed. ■ The ambient temperatures and environmental conditions meet those specified in Appendix C. 4 Power cycle the unit. If a further thermal shutdown occurs, and all environmental conditions are satisfactory, return the unit to 3Com. Error message indicating that the GBIC transceiver is invalid The Switch has identified that the GBIC does not meet the minimum requirements for the Switch and has disabled the port. To correct this problem, completely remove the GBIC and replace it with a 3Com approved GBIC. See "Approved GBIC Transceivers"on page 29. Error message indicating that the GBIC transceiver is faulty To correct this problem, completely remove the GBIC and then reinsert it. If the problem persists, contact 3Com Technical Support.