ADTRAN MX2820 System Manual page 141

Table 5-32. T1/E1 PM Parameter Descriptions (Continued)
T1/E1 PM Parameter
For P/N 1186002L3 Only:
CV-P
ES-P
SES-P
UAS-P
61186003L1-1D
Definition
Code Violation -
Path
Errored Seconds -
Path
Severely Errored
Seconds - Path
Unavailable Sec-
onds - Path
Section 5, User Interface Guide - UIG-520, M13 MUX PM Statistics
Description
SF Mode: This parameter indicates the number of frame
synchronization bit errors that have occurred during the
accumulation period.
ESF Mode: This parameter indicates the number of
CRC-6 errors that have occurred during the accumula-
tion period.
SF Mode: This parameter indicates the number of sec-
onds containing any of the following:
• FE (Frame bit Error). This parameter indicates the
occurrence of a frame bit error in the received frame
bit pattern.
• CS (Controlled Slip) Event. This parameter indicates
the replication of deletion of the 192 payload bits of
a DS1 frame by the receiving unit.
• SEF (Severely Errored Frame) Defect. This parameter
indicates that two or more frame bit errors are
detected in a window.
• AIS (Alarm Indication Signal) Defect. This parameter
indicates the detection of an unframed signal with a
1s density of at least 99.9% for a time.
ESF Mode: This parameter indicates the number of sec-
onds containing any of the following:
• CRC-6 (Cyclic Redundancy Check) Error. This
parameter indicates the existence of a CRC-6 code
that is not identical to the corresponding locally
calculated code.
• CS Event
• SEF Defect
• AIS Defect
SF Mode: This parameter indicates the number of sec-
onds with 8 or more FE events or one or more SEF or
AIS defects.
ESF Mode: This parameter indicates the number of sec-
onds with 320 or more CRC-6 errors or one or more SEF
or AIS defects.
This parameter indicates the number of seconds for
which the DS1 path contains 10 contiguous SESs.
5-55