61200239L1-20 Express 3010/3110 User Manual 6-1Chapter 6 TroubleshootingTROUBLESHOOTING GUIDELINESThis section provides troubleshooting techniques to resolve problemsthat may be encountered while operating the Express. If problemspersist contact ADTRAN technical support for assistance (see the in-side back cover of this manual).Power/Line LED is OffThis indicates a problem with the power to the unit. Verify the powercord is connected to the Express and is plugged into a working 120volt AC electrical outlet.Power/Line LED Flashes and 1 and 2 LEDs areOffThis indicates a problem with the physical connection of the ISDN linefrom the local telephone company to the Express.1. Verify the large end of the RJ-45 to RJ-11 telephone cable(included with the Express) is connected to the ISDN connectoron the rear panel of the Express.2. Verify the small end of the RJ-45 to RJ-11 telephone cable is con-nected to the ISDN telephone wall jack installed with Basic RateISDN.3. Contact the local telephone service provider.