HP 8163A Programming Manual page 104

command: [:SOURce[n]][:CHANnel[n]]:POWer:ATTenuation:DARK?
syntax: [:SOURce[n]][:CHANnel[n]]:POWer:ATTenuation:DARK?
description: Queries whether the attenuator is set to 'dark' position (where all light is
blocked by the laser).
parameters: none
response: dark position not set
0:
dark position set
1:
example:
sour2:pow:att:dark?
affects: All Tunable Laser modules with an in-built optical attenuator
Introduction to Programming
Signal Generation – The SOURce Subsystem
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104
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