Viavi OLA-54 Bedienungsanleitung Seite 61

Command
string
:ATT
:POW
:REF
:STAT
:ATT
:POW
:REF
:STAT?
:ATT
:POW
:REF
:VAL
:ATT
:POW
:REF
:VAL?
:ATT
:POW
:ATT
:REL
Viavi
Parameter type / Response type /
Unit / Info
Determines whether attenuation is
displayed as an absolute or a relative
value in ATT mode.
Parameter type: <BOOLEAN>
• 0: absolute value (dB)
• 1: relative value (dBr)
Default setting: 0
Returns the type of attenuation
display in ATT mode.
• 0: absolute attenuation
• 1: relative attenuation
Sets the value for the specified
wavelength (to which the attenuation
reading is referred) in relative mode.
Parameter type: <NR1>,<NRf>
e.g.
:ATT:POW:REF:VAL 1310,-34.50
sets the reference value for 1310 nm
to -34.50 dBm.
Returns the value for the specified
wavelength (to which the attenuation
reading is referred) in relative mode.
Parameter type: <NR1>
Response type: <NRf>
Unit: dB
e.g. :ATT:POW:REF:VAL? 1490
Sets the attenuation [dB] relatively to
the reference value in ATT mode.
Parameter type: <NRf>
Default setting: 0 dB
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