Front Panel Controls And Indicators - Keysight 81940A User Manual

1 Getting Started

Front Panel Controls and Indicators

CAUTION
18
Figure 5 Keysight 81949A Compact Tunable Laser Modules
Switch the laser output on or off using the button on its front panel, using
the [State] parameter in the instrument's Graphical User Interface, or
remotely using GPIB commands.
When the 'Active' LED is lit the output is enabled. When the active LED is
not lit the output is disabled.
The built-in laser diode is active whenever the instrument is powered on,
therefore disabling the output is not sufficient to establish eye safe
conditions.
Keysight 81940A, 44A, 49A, 80A & 89A Compact TLS Modules User's Guide