ADTRAN T1 CSU ACE Manual

Also see for T1 CSU ACE: Specifications

Chapter 3. Troubleshooting and Maintenance36 T1 CSU ACE User Manual 61202022L1-1BEquipment LOSCondition: EQ LOS LED is illuminated.1. Verify that the cable from the CPE is in the CPE modular jack onthe bottom/end of the CSU ACE.2. If all connections seem intact, use a BERT test set in the NET INand NET OUT jacks to test the CPE.Power On - Self Check FailureCondition: NET LOS, EQ LOS, NET LB, and EQ LB all flash in uni-son, continuously.• The unit has failed its internal self check. Return the unit to theADTRAN Customer and Product Service (CAPS) Department asinstructed on page 12.EPROM Checksum FailureCondition: NET LOS and EQ LOS Flash alternately with NET LBand EQ LB for the first 10 seconds after power up.• The unit’s EPROM has a bad checksum. Return the unit to theADTRAN CAPs Department as instructed in the Product Supportpage on the back page of this manual.MAINTENANCEThe T1 CSU ACE requires no routine maintenance. No repairs shouldbe performed by the customer. Repair services can be obtained by re-turning the unit to the ADTRAN Customer and Product Service(CAPS) department as instructed on page 12.