Appendix A
Test Results Definitions
DS3 results
132
CT-650 Command-Line Reference Guide
Release 9.4
Par Err
Rate
Ratio of parity errors to (1) the number of bits over
which parity was calculated (Bit mode), or (2) the num-
ber of DS3 M-frames received (Block mode). The error
rate is computed over the previous block of 10
8
bits.
To verify the CT-650 is using bit mode or block mode,
use the command
Information Configure
Defaults DS3
.
Par Err Sec
Number of seconds during which one or more parity
errors occurred since initial DS3 frame synchroniza-
tion.
FEBE
Number of far-end block errors (FEBEs) detected
since initial DS3 C-bit frame synchronization.
Average
FEBE Rate
Ratio of Far End Block Errors to (1) the number of bits
over which C-bit parity was calculated (Bit mode), or
(2) the number of DS3 C-bit M-frames received (Block
mode). The error rate is computed while DS3 C-bit
frame synchronization is present. To verify that the
CT-650 is using bit mode or block mode, use the com-
mand
Information Configure Defaults DS3
.
FEBE Sec
Type A
Number of seconds during which one and only one
FEBE occurred since initial DS3 C-bit frame synchro-
nization.
FEBE Sec
Type C
Number of seconds during which more than 44 FEBEs
occurred since initial DS3 C-bit frame synchronization.
Field
Description
Summary of Contents for CT-650
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