22 Chapter 3 Troubleshooting your CallPilot systemLeft -ReadyGreenCenter -ActivityGreenRight -ErrorAmber DescriptionOff Blinking On Cleaning is in progressOff Off Blinking • Unrecoverable tape drive failure hasoccurred.• Cartridge has failed• Microcode download failure hasoccurredNote: If the LED states indicate an error, contact your Nortel technical supportrepresentative.CD-ROM drive LED statesThe CD-ROM drive’s status LED is located on the drive’s front panel. Referto the following table when interpreting the CD-ROM drive’s status:IF the CD-ROMdrive LED is THENoff the CD-ROM drive is idle.on the CD-ROM drive is being accessed.Interpreting rear panel LEDsThis section describes LED states visible at the back of the 703t server.MPB96 DS30 connection link LED statesRefer to "Slot definition and numbering" (page 172) for the slot position ofthe MPB96 boards in your server."MPB96 board" (page 138) shows the location of three green LEDs on theMPB96 card bracket.When THENall three are On the cables are connected properly.one or more are Off • there is no connection to the switch.• the connection to the switch is intermittent.• the DS30 clock signal coming from theMGate card (NTRB18CA) is not workingcorrectly.You should:Nortel CallPilot703t Server Maintenance and DiagnosticsNN44200-702 01.03 Standard5.0 3 April 2007Copyright © 2007, Nortel Networks Nortel Networks Confidential.