Exfo FVA-3150 Variable Attenuator Manual de usuario descargar pdf (Pagina 95)

Remote Control Commands

Variable Attenuator 89

Specific commands-Quick Reference Command Tree

Parameters The <value> parameter can be

 “MIN” (to set the FVA-3150 to the minimum setting for the

current wavelength)

 “MAX” (to set the FVA-3150 to the maximum setting for the

current wavelength)

 a valid attenuation value followed by the units [DB]. Note

that, depending on the current measurement mode, the

<value> parameter takes different values.

In Absolute mode:

In Reference mode:

In Offset mode:

Therefore, when in Reference or Offset mode, the range of

the accepted values for the <value> parameter will change

according to the current reference or offset value.

Example INP:ATT -15.350 DB

Note This command cannot be issued while a program is running.

The ATT command is equivalent to the INP:ATT command.

Both give the same result.

value actual attenuation=

value

actual

attenuation

reference value(INP:OFFS?)–=

value actual attenuation wavelength-specific offset+=

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Exfo FVA-3150 Variable Attenuator Manual de usuario Pagina 95