Monitoring System Activity and Performance152-402-145-02, Issue 2

Table 5. Error Acronyms Used on the DS1 Performance History Screens

Error Acronym

Description

Error Acronym

Description

 

 

 

 

 

 

ES-L

Errored Seconds - Line

SES-P

Severely errored seconds - Path

 

Seconds with BPV ≥ 1.

 

Seconds with SES or CRC(ESF) ≥ 320 or

 

 

 

FE (d) (SF) ≥ 8 (F

+ F

).

 

 

 

T

S

 

SES-L

Severely errored seconds - Line

UAS-P

Unavailable seconds - Path

 

Seconds with BPV plus EXZ ≥ 1544 or

 

A second of unavailability based on SES-P

 

LOS ≥ 1.

 

or AIS ≥ 1.

 

 

 

 

 

 

UAS-L

Unavailable seconds - Line

PRM-NE (a)

Performance Report Monitoring - Near End

 

Seconds with LOS ≥ 1.

 

The PRM from CPE indicates errors, and

 

 

 

the signal received from the network at the

 

 

 

remote is error-free.

 

 

 

 

 

CV-L

Code Violation - Line

PRM-FE (a)

Performance Report Monitoring - Far End

 

Total BPV count.

 

The PRM from the network indicates

 

 

 

errors, and the signal received from the

 

 

 

CPE is error-free.

 

 

 

 

 

 

PDVS-L

Pulse Density Violation Seconds - Line

B8ZSS (b)

B8ZS Monitored Seconds

 

Seconds with excessive zeroes

 

Seconds with B8ZS detection when AMI

 

(AMI = 16 zeroes, B8ZS = 8 zeroes).

 

option is active.

 

 

 

 

 

 

ES-P

Errored Seconds - Path

MSEC (b)

Monitored Seconds of the current

 

Seconds with SEF (c), CRC (ESF) or

 

(15-minute/1-hour/1-day) screen.

 

FE (d)(SF) ≥ 1.

 

 

 

 

(a)Only appears on H2TU-R Performance History screens.

(b)Appears on the DS1 Current Statistics screens.

(c)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.

(d)FE is a frame bit error.

16

June 16, 2000

H2TU-R-402