Pro OCC-CWDM-301-18A, Operation Manual, Page: 23 / 46

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OCC-CWDM-301-18
Measurement Mode Configuration
There are two kinds of measurement mode: Averaging and Real time mode. Under Real time Mode, OTDR will
undertake realtime measurement for the connector of exterior fiber and refurbish the measure trace. While under
Real time Mode, press key “ ” to stop, otherwise it will measure all along. Under Averaging Mode, OTDR
will average the data within the measure time which is set by user. While exceeding the set time, it will stop
automatically and display the result. Generally, we suggest Averaging Mode.
Under menu of parameter configuration, use [
▲] and [▼] to highlight “Measurement Mode”; Press [Enter] to
choose Averaging mode or Realtime mode, as shown in Figure 3-14. Press [ ] to exit.
Figure 3-14. Measurement Mode Configuration
VFL Configuration
Under parameter configuration, use [
▲] and [▼] to highlight “VFL”; according to different demand, press
[Enter] to select CW, 1Hz or off, Press [ ] to exit When VFL is on, icon will be displayed under
B
A
icon, which is in the right menu bar. as in Figure 3-15.
Figure 3-15. VFL Configuration
30 s
80 km
1.4666 2500 ns
1550 nm
A ve. T i m e:
Ra nge :
IO R :
P ul s e w i dt h:
W a ve l e ngt h:
8K m / D i v 3.50 dB/ D i v
t ra c e1.t rc 15 :20
B
A
30s
80 km
2500 ns
R a n g e
W a v e l e n g t h 1550 nm
P u l s e W i d t h
A ut o
A v g . T i m e
30s
I O R 1.4666
N r e f l . T h r e .
0.20 dB
R e f l . T h r e .
-52 .00dB
E n d T h r e .
3.00 dB
S c a t . C o e f .
-52 .1dB
A v e r a g i n g M e a s . M o d e
A ut o
V F L
O f f
L e n g t h U n i t s M e t e r [ m ]
1.4666 1550 nm
A ve. T i m e:
Ra nge :
IO R :
W a ve l e ngt h:
8K m / D i v 3.50 dB/ D i v
t ra c e1.t rc 15 :20
1.4659 4
B
A
30 s
80km 2500 ns
R a n g e
W a v e l e n g t h 1550 nm
P u l s e W i d t h
A ut o
A v g . T i m e 30 s
V F L
N r e f l . T h r e . 0 .20dB
R e f l . T h r e .
- 52.00 dB
E n d T h r e.
3 .00dB
S c a t . C o e f .
- 52.1 dB
A v e r a g i n g M e a s . M o d e
A ut o
I O R
1.4666
CW
L e n g t h U n i t s M e t e r [ m ]