Input/Output Tab - THORLABS TNA001/IR User Manual

Persist Settings to Hardware - Many of the parameters that ca n be set for the
NanoTrak T-Cube can be stored (persisted) within the unit itself, such that when the
unit is next powered up these settings are applied automatically. This is particularly
important when the driver is being used manually in the absence of a PC and USB
link. The User Diameter and Frequency parameters described previously is a good
example of a setting that can be altered and then persisted in the driver for use in
absence of a PC.
To save the settings to hardware, check the 'Persist Settings to Hardware' checkbox
before clicking the 'OK button.

6.2.2 Input/Output tab

Input Signal
Input Signal Source - the input source can be set to ' PIN (TIA) Input' or '1 0V SMA
input'.
The PIN (TIA) Input option should be used when NanoTraking to optimize a PIN
current feedback signal. The TIA (trans impedance amplifier) input source should
be selected when using the rear panel Optical I/P connector or when an external
detector head is connected to the optional SMB connector. This option uses the
internal amplifier circuit and associated functionality (e.g. autoranging).
The 10V SMA Input options should be used when NanoTraking to op timize a
voltage feedback signal. Typically, these inputs are selected wh en using an
external power meter which generates a voltage output. In this case the internal
amplifier circuit is bypassed and ranging functionality (as displayed on the GUI) is
inoperative. The input range is 10V full scale.
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Fig. 6.3 NanoTrak Settings panel - Input/Output Tab
HA0165T Rev 4 May 2012