A Description of the User Interface Getting Started
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave 
Multichannel System, Fourth Edition
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If more than 3 modules are inserted in the Agilent 8166A Lightwave 
Multichannel System, the user interface cannot display each channel number in 
the details screen. The arrow indicates that undisplayed channels can be accessed 
by pressing the Channel hardkey.
To return to the overview screen press the [Overview] softkey.
Figure 16 The Agilent 8164A’s Details Screen for a Tunable Laser Channel
Figure 17 The Agilent 8166A’s Details Screen for a Power Sensor Channel