363-206-295
Technical Specifications
10-4 Issue 1 December 1997
— Severely Errored Seconds (SES-P)
A SES-P is a second in which 44 or more DS3 P-bit, adjusted F&M
bit, or C-bit coding violations are detected. SES-P are not counted
during UAS-P.
SES-P are counted and thresholded independently for each DS3
path terminated by the system.
— Unavailable Seconds (UAS-P)
An “unavailable second” is a second during which the DS3 path is
unavailable. A DS3 path is considered unavailable from the
beginning of X consecutive SES-P until the beginning of Y
consecutive seconds, none of which is severely errored. X is equal
to 10 seconds or, in the case of a failure, the DS3 signal failure. A Y
is equal to 10 seconds of no SES-P or DS3 signal failures. If there
is an unprotected DS3 circuit pack failure, UAS-P are counted from
within 1 second of circuit pack failure to within 1 second of circuit
pack recovery. UAS-P are counted and thresholded independently
for each DS3 path terminated by the system. This applies to P-bit,
adjusted F&M bit, and C-bit options.
— Severely Errored Frame Seconds (SEFS)
SEFS are a count of the number of seconds during which an OOF
or AIS condition exists for a DS3 signal received from the fiber, or
the DSX-3, or during an unprotected DS3 circuit pack failure. SEFS
are counted and thresholded independently for all DS3 interfaces
provisioned in VM or VMR mode.
— Line Coding Violations (CV-L)
This parameter is a count of B3ZS bipolar violations (BPV)
occurring over the accumulation period. BPVs that are part of the
zero substitution code are excluded.
— Errored Seconds LIne (ES-L)
This parameter is a count of seconds containing one or more BPVs,
or one or more LOS (from the DSX-3) defects.
— Severely Errored Seconds LIne (SES-L)
This parameter is a count of seconds during which BPVs exceed
44, or one or more LOS defects occur.
To Next Page
Loading...
Need help?
General
