The SDH Access Tester application
Acterna ANT-5 Page 59
If required the following control characters can be inserted into the trace label strings
for expected and transmitted bytes. Alphanumeric characters can be entered using the
keyboard keys.
NUL Nul BS Backspace
TAB Tabulation LF Line Feed
CR Carriage Return DEL Delete
4.5.3 Path Labels
To set up the path labels, select the
PLM Setup view. Two path labels can
be optionally monitored, by checking
the box alongside each path label
field. If the received values differ from
the values preset within this page,
and the respective box is checked, a
defect alarm is raised and noted
within the Results pages.
4.5.4 Tandem Connection Monitoring
Tandem connection monitoring (TCM)
allows the comparative performance
of path segments to be monitored with
the aid of the N bytes in the path
overhead. Select the TCM view to set
up tandem connection monitoring.
The received HP and/or LP paths can
be monitored by selecting the HP and
LP check boxes as required. The
appropriate paths will then be
activated on the TCM results page. If
neither box is selected, the TCM
results page will not be available. See
Section 4.15, TCM results summary.
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