ADTRAN T1-FT1 User Manual

Contents

ADTRAN T1-FT1 User Manual Manual pdf 64 page image

Chapter 3. Operation3-28 TSU User Manual 61200060L1-14)CLR 511 ERRORS - Accomplishes two functions. First, itclears out the 511 error total when ENTER is pressed. Second,it displays a total of the 511 errors. If 511 errors are beingreceived, the display is updated accordingly.This menu function is very useful for testing end-to-endintegrity of the network. First loopup the far end TSU. Thensend a 511 pattern from the local TSU. The CLR 511 ERRORSscreen can then be used to determine if the link is functioningproperly by verifying that no errors are being counted.2)Run Selftest, Submenu of 4)TestThis menu selection is used to execute an internal self test.This is the same self test that is performed automatically atpower up. The results of the self tests are displayed in theLCD. Upon invoking the command the LCD displaysINITIALIZING and test failures are displayed in the LCDwindow. The self test procedure consists of the followingtests.• Ram tests; EPROM checksum• On board data path. Sending a known test patternthrough an on-board loop• Front Panel LED verification• Phase Lock Loop verifyIf a failure is detected, note the failure number prior tocontacting ADTRAN technical support.C L R 5 1 1 E R R O R S5 1 1 E R R O R S = 5 6Executing a self test will disrupt normal data flow and prevent re-mote communication until the self test is completed (5 seconds).