Turning the variable attenuator on and off – EXFO FVA-3150 Variable Attenuator User Manual
Page 19
Getting Started With Your Variable Attenuator
Variable Attenuator
13
Turning the Variable Attenuator On and Off
Turning the Variable Attenuator On and Off
When you turn on your unit:
it beeps twice
it performs a self-test
it enters the mode that was active at the last power-off (Absolute,
Offset, or Reference)
When you turn the unit off, the following items remain in read-only
memory:
current shutter state
current display mode
current attenuation setting
current wavelength
shortlisted wavelengths
each wavelength offsets
step size
remote-control settings
programmed attenuation routine settings
saved configurations
Note: The power cord is the most effective disconnecting device. To ensure that
the power is completely turned off, disconnect the power cord.
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