Unit installation

Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics
FCD-E1 Monitoring Performance 6-3
Table 6-1. Performance Monitoring Parameters
Display Name Description
ERROR CRC*
Current CRC-4 error events A CRC-4 error event is any multiframe containing a
CRC error and/or OOF event. The number of CRC
events in the current second is collected in a current
CRC error events register.
AV ERR CRC*
Current average CRC-4 errors The average number of CRC events per second. The
average is updated every second.
Note: Register contents can be displayed at any time.
When the CRC error events are displayed on the
front-panel LCD, the register can be reset by
pressing ENTER.
CURR ES*
Current errored seconds An erred second is any second containing one or more
CRC error events, or one or more OOF events, or one
or more controlled slip events. The data is collected for
the current 15-minute interval.
CURR UAS*
Current unavailable seconds An unavailable second is any second in which a failed
signal state exists. A failed signal state is declared when
10 consecutive severely errored seconds (SES) occur,
and is cleared after 10 consecutive seconds of data are
processed without a SES.
CURR SES*
Current severely errored seconds A SES is a second with 832 or more CRC error events,
or one or more OOF events. The data is collected for
the current 15-minute interval.
CURR BES*
Current bursty errored seconds A BES is a second with 2 to 831 CRC error events. The
data is collected for the current 15-minute interval.
CURR LOFC*
Current loss of frame counter The loss of frame (LOF) counter counts the loss of frame
alignment events. The data is collected for the current
15-minute interval.
CURR CSS*
Current slip second counter A CSS is a second with one or more controlled slip
events. The data is collected for the current 15-minute
interval.
CURR SECS*
Current seconds The number of seconds in the current measurement
interval. A measurement interval has 900 seconds
(15 minutes).