![background image](http://html1.mh-extra.com/html/acterna/mts-5100e/mts-5100e_user-manual_2842380080.webp)
5-16
U
SER
M
ANUAL
750000992/16
Using an OTDR module
MTS
e
Once you have made an acquisition and have results, you can simply press the
Event
key to move the cursor from event to event. Using this function in
combination with the
ZOOM
and
CURSOR
keys allows you to rapidly analyze
the fiber. When moving from one event to another, the zoom value is retained
(except if this is not possible).
Notes
In order to display all the events, verify that the thresholds are set to
ALL
in the
TEST SET UP
menu.
In order to display the results on the trace, verify that the
Results on
trace
option is activated in the
TEST SET UP
menu.
The display of an event depends on the selected attenuation and reflectance
thresholds. It will be displayed if either of these values is above a threshold given
in the TEST SET UP menu (refer to "Selecting measurement acquisition
parameters" on page 5-3). Both results for an event will be displayed if both can
be calculated. The following table lists examples of faults displayed for various
attenuation and reflectance thresholds.
The event reflectance is always measured unless all the elements of the event
cannot be measured, e.g. Peak saturation or an event lost in noise. In such cases
instead of giving the exact calculated reflectance value e.g. -30 dB, MTS
e
displays
> - 30 dB to indicate that the reflectance is worse than -30 dB.
The display of a slope depends on the selected slope thresholds. It will be
displayed if the value is above a given threshold in the TEST SET UP menu (refer
to "Selecting measurement result display parameters" on page 5-4).
The following is an example of only hunting for all splice events that produce a
loss of greater than 0.05 dB.
•
Select the different thresholds of the events to be detected by pressing the
SET UP
key.
•
Use the
RESULTS
key followed by the
<
Event
>
key to quickly move to each
event that results in an attenuation greater than 0.05 dB.
Two point relative measurements can be made using the
<Event>
key in
conjunction with the two cursors. This enables you for example to analyze the
loss budget of a link which has a launch cable.
1.
Position one of the cursors at the end of the launch cable.
2.
Select the other cursor.
Ex.
Thresholds set
MTS
e
will display a value if the attenuation or
the reflectance has the following values
Attn.
Refl.
Attenuation
Reflectance
1
0.05 dB
- 60 dB
>
0.05 dB
> - 60 dB
a
a. example: a - 43 dB value will be displayed.
2
1 dB
- 15 dB
>
1 dB
≥
- 15 dB
b
b. example: a - 14 dB value will be displayed but a - 20 dB value would not be
displayed.
3
6 dB
---
>
6 dB
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com