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JDS Uniphase HA9 Series User Manual

JDS Uniphase HA9 Series
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Programming Guide 74
OUTPut Commands
:OUTPut:APMode
Syntax
:OUTPut:APMode <space> <boolean>
Function
Sets whether the actual attenuation of the attenuator is set by changing the total
attenuation or by changing the through power.
When absolute power mode is set to ON, the actual attenuation is set by setting
the through power rather than the total attenuation. The base through power,
otherwise referred to as the power mode offset, is automatically set to the total
attenuation when absolute power mode is activated:
ThroughPower
base
= ATT
total at apmode on
= ATT
actual
+ Offset
This value differs from setting the power mode offset manually (using the
keypad) because the attenuator is not set to power mode before the power
mode offset is adjusted.
To match the display of the attenuator to that of a power meter, adjust the offset
until the attenuator display matches the power meter display, then turn on the
absolute power mode and set the through power as required.
The absolute power mode is turned off automatically when any of the following
commands or their associated queries are received by the attenuator:
:INP:ATT
:INP:OFFS
:INP:OFFS:DISP
Example
:OUTP:APM ON sets absolute power mode to ON.
:OUTPut:APMode?
Syntax
:OUTPut:APMode?
Function
Returns the current absolute power mode state, for example, returns 1 if
absolute power mode is ON (the actual attenuation is set by throughput) and 0 if
absolute power mode is OFF (the actual attenuation is set by the total
attenuation).
Example
:OUTP:APM 1;APM? returns 1.
:OUTPut:DRIVer
Syntax
:OUTPut:DRIVer <space> <boolean>
Function
Sets the state of the 5 V output. A boolean value of 1 or ON turns the 5 V output
on. A boolean value of 0 or OFF turns the 5 V output off.
Example
:OUTP:DRIV ON turns the 5 V output on.
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JDS Uniphase HA9 Series Specifications

General IconGeneral
BrandJDS Uniphase
ModelHA9 Series
CategoryControl Unit
LanguageEnglish

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