EXFO PSO-100 Series Optical Sampling Oscilloscopes - Manual (Page 99)

Troubleshooting
Optical Sampling Oscilloscope 91
Solving Common Problems
The update rate is very slow,
even in Freerun mode and with
16 k samples.
³
You are using a
USB 1.1 port.
³
Your computer is
slow .
³
You have several
other applications
running.
³
If you have a
USB 2.0 port on
your computer
connect the USB
cable to that port
and reinstall the
USB driver.
³
Install the
application on a
faster computer.
³
Close some
applications,
restart the
computer if
necessary.
The power level shown in the
application is much lower than
expected.
³
Signal
wavelength is
outside the
1525-1565 nm
span.
³
Dirty contacts.
³
Use the
1525-1565 nm
span.
³
Clean the
contacts.
Problem Cause Possible Solution