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Error analysis – EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 158

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Port Tabs

144

IQS-8100 Series Transport Blazer

Port RX (Electrical Interfaces)

Error Analysis

Possible errors that can be detected are:

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For DS1 and DS3

BPV (Bipolar Violation): A BPV error indicates that pulses of the same
consecutive polarity were detected, in violation with the bipolar signal
format.

EXZ (Excessive Zeros)
For DS1 with AMI Line Coding: Indicates that more than 15
consecutive bit periods with no pulses have been received.
For DS1 with B8ZS Line Coding: Indicates that more than 7
consecutive bit periods with no pulses have been received.
For DS3: Indicates that more than 2 consecutive bit periods with no
pulses have been received.

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For E1, E2, E3, E4, STS-1e/STM-0e, and STS-3e/STM-1e

CV (Code Violation): A CV error indicates that pulses of the same
consecutive polarity were detected, in violation with the bipolar signal
format.