Nokia Optical Diagnostics and Troubleshooting Exam 4A0-265 Question # 6 Topic 1 Discussion
4A0-265 Exam Topic 1 Question 6 Discussion:
Question #: 6
Topic #: 1
A power adjustment has succeeded conditionally because of gain settings set to higher levels than expected by design. Which of the following alarms will raise?
A.
Invalid topology (PRCDRERR-TOPO)
B.
Amplifier Gain Tilt Adjustments Suspended (PWRTILTSUSP)
A power adjustment has succeeded conditionally because of gain settings set to higher levels than expected by design. This means that the optical power levels of the amplifier have been adjusted within the acceptable range, but the gain values are higher than the design values. This can cause a performance degradation or instability of the optical signal. The alarm that will raise in this case is “Amplifier Gain Tilt Adjustments Suspended” (PWRTILTSUSP). This alarm indicates that the gain tilt adjustments, which are used to compensate for the wavelength-dependent loss of the optical signal, have been suspended due to high gain values. The alarm also suggests lowering the gain values manually or using the EPT tool. The other alarms are incorrect because they either indicate a different type of power adjustment issue or do not exist. References: Nokia Optical Diagnostics and Troubleshooting Course, OAM and Diagnostics Guide
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