Display Of Events On The Trace; Results Table - Viavi E4123MM User Manual

Chapter 2 SMART TEST function
Results display
Table 2
Valid

Display of events on the trace

Each event detected is referenced under the trace by a serial number. The reflectometry
trace is displayed with a dotted vertical line set on the start of launch cable
Launch Cable End parameter is defined in the S
The trace can also be displayed with a dotted vertical line on the end of fiber
The icon
defined in the Setup menu.
The results of the measurements of attenuation, reflectance and slope can be marked
on the trace.
The reflectance of a ghost event is displayed in brackets on the trace.
Criteria for display of an event
An event will be displayed if its attenuation or its reflectance exceeds the corresponding
threshold selected in the S
9). Attenuation and reflectance results for an event will be displayed if they can be calcu-
lated
The reflectance of an event is always measured except when the event causes a satu-
rated Fresnel peak or if it is drowned out by noise. In this case, the T-BERD/MTS
displays > to show that the actual reflectance exceeds the value displayed.

Results table

Under the trace is displayed the results table with all the events detected during acqui-
sition.
The line corresponding to the event nearest to the cursor is highlighted in purple. This
highlighting moves if the cursor is moved.
To reduce or enlarge the size of the results table, click and maintain the bar between
trace and table and move downward or upward
22
Alarms display
Indicates that all the results lie within the thresholds (no result in red/yellow)
Results are displayed in green in the table.
is displayed on trace if the Receive Cable Start parameter has been
ETUP
User Manual
ETUP
menu (see "Configuring the unit for Smart TEST" page
700MAN201 Rev. 004
menu)
(if the
.
.