SIE-CNTEP-1100002104-2014
LCFS
AV6418 OTDR
57
(2) Test mode also can be set to auto test. The instrument
will set and adjust test conditions (i.e. range, pulse width
and attenuation) and display test waveform on LCD
completely.
(3) When test range is larger than or equal to 64km, entirely
display trace test mode can be selected. Then, the
instrument
will
automatically
adjust
pulse
width
and
attenuation in the current range and display test waveform
on LCD completely.
l
Times:
It is used to set the max. average times of average and auto
test. The value of times is between 1 and 4000 in average
mode. The value of times is between 5 and 20 in auto test
mode. When entirely display trace test function is selected,
the average times are 1 or 10 multiple, such as 1, 10, 20, 30,
etc.
Note!
Note!
(1) The larger the average times is, the smoother trace is
(i.e. SNR is higher; especially it is helpful for test of longer
fiber.
(2) Higher trace SNR is more beneficial for OTDR to test
smaller event point.
(3) In auto test mode, more average times will affect auto
test speed. Range must be larger than the length of optical
fiber under test (it is best to set it to be more than twice the
Página No.69 LCFS
CONVALIDACIÓN DE ERRORES DEL PROCESO:
“ADQUISICIÓN DE OTDR (OPTICAL TIME DOMAIN REFLECTOMETER) – REDES GPON/
FTTH/ SDH"