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OCC-CWDM-301-18
Note
•
Make sure the instrument is power off when connecting to PC through RS232 (or USB) data cable; Make
sure it’s fastened, then power off.
•
USB sustains the electrification hot plug. However USB operation rules must be obeyed while connecting
to PC. To install USB driver correctly is necessary before uploading the data; Make sure USB is pulled
out safely. Otherwise it will result in losing data.
•
This operation cannot be applied under GUI of parameter configuration, save trace, browse saved traces,
and measuring in progress.
4.12 Alter Measurement in Realtime Testing
To alter measurement in realtime testing, follow these steps:
•
Use [
▲] and [▼] to highlight “
”, and the press [Enter]. A parameter will appear at the bottom of the
screen.
•
Use [
◄] and [►] to move the parameter to be changed (Figure 4-8), and the press [Enter].
•
Use [
▲] and [▼] to change the Ref value. Select “Averaging” to select averaging testing.
•
Press “OK” to exit the parameter configuration menu.
Figure 4-8. Realtime Testing
﹡
8 K m/ D i v
5.00 dB/ D i v
Ra nge :
W a ve l e ngt h: 1550 nm
B
A
E ve nt
80 km
P ul s e W i dt h: 2.5us
IO R: 1. 4677
< A ve ra gi ng>
< O K >