PDF user manual for CopperEdge 150

&('LDJQRVWLF)HDWXUHVThe CE150 includes features to help you to diagnose problemsin case something should go wrong. Should a malfunction occur,these features can help you to pinpoint the device causingthe problem, and indicate possible avenues for recovery.Diagnostic features include:• Visual indicators (front panel LEDs)• Traps and alarms• Loopbacks and Loop Quality Tests• Built-in performance monitors• Diagnostic port (assisted by Copper Mountain TechnicalSupport))URQW3DQHO/(',QGLFDWRUV0RGXOH6WDWXV,QGLFDWRUVCircuit modules for the CE150 are equipped with front-panelLEDs that show module functionality at a glance. The modulestatus LEDs on the AC and DC power modules, DSL line modules,and Buffer Control Module indicate the general status ofthe circuit pack whenever power is applied.Under normal circumstances, the module status indicatorLEDs should be on and green. The Buffer Control Module statusLED provides additional information as discussed below.%XIIHU&RQWURO0RGXOH6WDWXVDuring normal operation (startup sequence completed), theBuffer Control Module should be green and flickering to indicatedata flow. In case of trouble, however, Buffer Control Modulesof Version 2.1.63 and later could also display the following:• Alternating Red/Amber—Abnormal operation. At leastone invalid descriptor has been received from the SystemControl Module, the affected DSL ports have beendeactivated, unaffected DSL ports will continue tooperate normally.• Continuous cycle of Red/Amber/Off/Green—The BufferControl Boot PROM cannot properly initialize themodule. Not usually indicative of a failure in the BufferControl Module, but more likely in the PCI bus or otherPCI device. Restarting the System Control Module mayclear this condition; cycling power to the CE150 shouldalways clear it.• Red—Buffer Control Module is in latched reset becausethe CPU has failed to start, or the SRAM test failed. A fullCE150 power cycle is required to clear this state.&RSSHU(GJH,QVWDOODWLRQDQG2SHUDWLQJ*XLGH