Bursty Errored Secs; Severely Errored Secs; Failed Secs; Controlled Slips - Multitech MultiDSU MTT1DSU User Manual

Bursty Errored Secs

Bursty Errored Seconds (BES) are seconds containing 2 to 319 CRC6
errors.

Severely Errored Secs

Severely Errored Seconds (SES) are seconds with 320 or more CRC6
errors.

Failed Secs

Failed Seconds are seconds that failed due to one or more errors.

Controlled Slips

Controlled Slips (CS) occur when the receiving device either replicates
or deletes a DS1 frame.

Framing Bit Errors

Framing Bit Errors (FBE), also called Out Of Frame (OOF) errors, are
two frame bit errors in six consecutive frame bits.

Bipolar Violations

Bipolar Violations (BPV) occur when two adjacent bits are of same
polarity.
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