XtendLan XL-GDB102E, User Manual

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The following are commonly used acronyms:
ES Number of errored seconds in which one or more CRC (Cyclic Redundancy Check) error
events occurred during the current interval. This value is updated every time.
UAS Number of unavailable seconds in which a failed signal occurred during the current
interval. This value is updated every time.
SES Number of severely errored seconds in which 832 or more CRC error events occurred
during the current interval. This value is updated every time.
LOSW Number of seconds with loss of sync word during the current interval. This value is
updated every time.