Zhone IMACS 8000 User Manual page 346

Running Head
WAN Card User Screens and Settings
CSES
The Consecutive Severely Errored Seconds (CSES) field is triggered by the occurrence of ten
consecutive Severely Errored Seconds. Once triggered, the CSES field will increment (by
one) for each elapsed second until the system logs ten consecutive non-Severely Errored
Seconds. Since this is an information-only field, there are no user-selectable parameters.
OSS
The Out of Synchronization Seconds (OSS) field shows the number of seconds that the WAN
BERT has been out of synchronization. Since this is an information-only field, there are no
user-selectable parameters.
BER
The Bit Error Rate (BER) field shows the rate at which errors are being logged. The system
calculates BER by dividing the number of bit errors (BE) by the total number of bits
transmitted during the test. Since this is an information-only field, there are no user-selectable
parameters.
ELAP
The Elapsed time setting shows the running tally of the total number of seconds during the
test. Since this is an information-only field, there are no user-selectable parameters.
LB STATE
The Loopback State setting changes when a WAN unit is both present and operational. This
includes loopbacks caused by commands from remote devices as well as loopbacks caused by
local settings. The field will show plb (payload loopback) when the entire signal, excluding
the framing bit, is looped back. The field will show llb (line loopback) when the entire signal
is looped back. It will show none if the WAN port is not in loopback.
9-46
Model No.
WAN Card
System Cards