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LTPH-UM-1109-01, Issue 1 Monitoring System Activity and Performance
H2TU-C-231 List 2 January 9, 2002 29
Table 9. Acronyms Used on the DS1 Performance History Screens
Error
Acronym
Description
Error
Acronym
Description
CV-L Code Violation - Line
Total BPV count.
SES-P Severely Errored Seconds - Path
Seconds with SES or CRC (ESF) ≥320 or
FE
(a)
(SF) ≥8 (F
T
+ F
S
).
(a) FE is a frame bit error.
ES-L
(b)
(b) Line refers to the AMI, DS1 line code used to transport the payload.
Errored Seconds - Line
Seconds with BPV ≥1.
UAS-P Unavailable Seconds - Path
A second of unavailability based on SES-P or
AIS ≥1.
SES-L Severely Errored Seconds - Line
Seconds with BPV plus EXZ ≥1544.
PRM-NE
(c)
(c) Only appears on H2TU-R Performance History screens.
Performance Report Messaging - Near End
The PRM from CPE indicates errors, and the
signal received from the network at the remote is
error-free.
UAS-L Unavailable Seconds - Line
Seconds with LOS ≥1.
PRM-FE
(c)
Performance Report Messaging - Far End
The PRM from the network indicates errors, and
the signal received from the CPE is error-free.
CV-P Code Violation - Path
Total count of FE errors for SF or CRC-6 errors
for ESF.
B8ZSS
(d)
(d) Appears on the DS1 Current Statistics screens.
B8ZS Monitored Seconds
Seconds with B8ZS detection when AMI option
is active.
ES-P
(e)
(e) Path refers to the total framed payload being transported between two points.
Errored Seconds - Path
Seconds with SEF
(f)
, CRC (ESF) or
FE
(b)
(SF) ≥1.
(f) Severely Errored Frame—Two or more frame bit errors occurring in a 0.75 ms interval for SF or a 3 ms interval for ESF.
MSEC
(d)
Monitored Seconds of the current
(15-minute/1- hour/1-day) screen.