JDS Uniphase 4100, User Manual, Page: 41 / 182

Chapter 4
Configuring the reflectometry test
Configuring the test in OTDR Expert
User Manual 770000102/08
21
Configuring the
Acquisition
parameters
You can choose the OTDR acquisition parameters.
1
Once the
Setup
page is displayed, press
Acquisition
menu key to
configure the Acquisition parameters.
The Acquisition Setup page is divided into two parts: the
Acquisition
box
and the
Launch cable
box.
Parameters
Laser
The acquisition will be carried out on the wavelength(s) selected (for
multiple-wavelength modules). In case of a multi-wavelength module,
select
All
to perform a measurement for all the wavelengths available
(this parameter visible exclusively on modules with one single OTDR
port). The possible values depend on the module used.
Acquisition
Select the kind of acquisition to be performed:
Manual
The acquisition parameters
Pulse
/
Range
/
Resolu-
tion
can be set by user.
Auto
The acquisition parameters
Pulse
/
Range
/
Resolu-
tion
are defined automatically and cannot be modi-
fied
The
Measurement time
will be set to
Auto
, but can be modified.
Range
The possible range depends on the pulse length selected. This range is
given for each pulse length in the paragraph
"Ranges" page 147 . This
parameter is exclusively configurable if
Acquisition
parameter is set to
Manual
. It depends on the module used
Auto
allows to detect automatically the range.
In
Auto
mode, the range is selected as a function of the end of the fiber.
Pulse
From 3ns to 20µs according to module used. Parameter selectable only
if
Acquisition
parameter is set to
Manual
.
See "Typical specifications" page 145 .
If some acquisition parameters are not accessible (not visible or dis-
played in grey), check in the
Home
page that the OTDR Expert func-
tion has really been selected (see "Selecting the OTDR Expert
function" page 15 ).
MTS2100 4100 Module US rev08.book Page 21 Jeudi, 1. août 2013 1:43 13