OPTICAL TUNABLE FILTER OTF-930
5-3
(17) GPIB Remote LED
Indicates GPIB remote operation is active. When active the front panel keys become
inoperative.
To return control to the front panel press the GPIB Local Key (16).
(18) Calibration Key (CAL)
Allows an offset to be applied to the wavelength value displayed.
(19) Store Key
Stores the wavelength offset data to internal ash memory. This setting is then retained even
when power to the OTF-930 is switched off.
(20)(21) Shift Key with Indicator LED
Enables alternative operation of other key functions. The indicator LED lights when the Shift
Key is pressed and remains lit until a valid function key is pressed or until the Shift Key is
pressed a second time. Pressing the Shift Key a second time cancels its operation. Valid key
combinations are:
a.
Shift + Local: Allows GPIB Address and Delimiter to be set.
b.
Shift + PS: Sets wavelength scan range for Peak Search function.
(22)(23) Option Key with Indicator LED
Not used.
(24) Serial Interface (SIF) Connector
Used for RS-232C communication.
(25) Power On / Off Key Switch
Operated using the power switch key, this is used to switch the unit on and off.
(26)(27) Disable Key with Indicator LED
Enables the lter to be removed from the beam. The LED blinks when this key is initially
pressed to indicate the lter is moving. The LED lights continuously when the lter is no
longer in the path of the beam. Pressing the key again returns the lter to its original position.
Again, the LED blinks when the lter is moving and the LED goes out when the lter has
returned to its original position.
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