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Chapter 5
Launching a reflectometry test and displaying results
Advanced functions in OTDR Expert mode
User Manual 770000102/08
61
1
Carry out an automatic measurement.
2
Memorize the position of the events selecting
Lock with the key
in the
Advanced
menu.
3
Add the manual measurements required (keys:
Advanced >
Manual Meas.
).
CAUTION
If an event is added (with the
Set Events
key) after manual measure-
ments have been performed, then all the events on the trace will be con-
verted into AUTO markers and an automatic measurement will be
performed using these events. The previous manual measurements will
be lost.
Provided the event memorization icon is displayed, the automatic
measurement following the acquisition is carried out using the events
which were present before the acquisition.
If you wish to make a measurement without events, deactivate memori-
zation of events by pressing the
Free Events
key.
Overlay trace
function
This very useful function enables up to eight traces to be displayed on
the screen at once:
– either to compare traces acquired on a number of different fibers in
the same cable,
– or to observe changes over time in traces taken of one and the
same fiber.
Fig. 35
Example of overlaid traces
MTS2100 4100 Module US rev08.book Page 61 Jeudi, 1. août 2013 1:43 13