Zhone Technologies 900 - Manual (Page 84)

2-18 IMACS System Release 5.1.6 Data Cards
Model No. Running Head Test Screen SRU Card
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 for this
option.
RTS
The Request To Send (RTS) field shows the current status of the RTS control lead. The two
values that can be displayed are on and off. Since this is an information-only field, there are
no user-selectable parameters for this option.
SR OSS
The Subrate Out of Synchronization Seconds (SR OSS) field shows how many seconds in
which there was a Subrate framing loss. Since this is an information-only field, there are no
user-selectable parameters for this option.
LB ST
The Loopback State (LB ST) field indicates whether there are any remotely-initiated
loopbacks currently active on the SRU port. This field will display both latching and
non-latching loopbacks that are initiated from a remote device via in-band loop-up codes. In
addition to none, the six possible messages that can be displayed in that field are l-ocu, l-dsu,
and l-csu for latching loopbacks; or ocu, dsu, and csu for non-latching loopbacks. Since this
is an information-only field, there are no user-selectable parameters for this option.
EER
The Excessive Error field will display the computed the DS0 error rate for each port where
that option was selected. The Majority Error Rate will be computed based on the integration
period for the selected threshold. For example, if the 10e-4 threshold was selected, the
integration would be 10 seconds.