Zhone IMACS-200 Benutzerhandbuch

8-11

The Out of Synchronization Seconds field shows the number of seconds that the SRU BERT 
has been out of synchronization. Since this is an information-only field, there are no 
user-selectable parameters.

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.

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.

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.

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.

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.