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What is the difference between the (for pay) photonic library and the (free) PNP drivers?
See long answer.

FAQ 2011-07-05

What is the calibration cycle for the 816x mainframes?
The 816x mainframes do not require calibration.

FAQ 2011-07-05

When upgrading my 816xB mainframe using ATTools, my computer reports "Cannot initialize serial port ...
A background task, such as hot synchronization, may be using the serial port.

FAQ 2011-07-05

What is the calibration cycle for the DFB Laser sources?
The calibration cycle for the 8166xA DFB laser sources is 24 months.

FAQ 2011-07-05

What accessories should I order with the 8162x optical heads?
The heads will not be able to operate as standalone instruments. The following accessories are needed ...

FAQ 2011-07-05

How is the 8169A different from the 11896A polarization controller?
The 8169A Provides polarization synthesis relative to a built-in linear polarizer.

FAQ 2011-07-05

What is the difference between the FETCH and the READ command to get the data from the power modules?
The FETCH and READ command will both acquire a power reading from the mainframe.

FAQ 2011-07-05

I need to measure Polarization Dependant Loss (PDL), which optical head should I use?
The uncertainty due to polarization is less for InGaAs based optical heads than for Ge based optical heads.

FAQ 2011-07-05

Why can't I obtain my computer's fingerprint ID?
For the fingerprinting or licensing tools to work correctly, a network card, the appropriate driver and ...

FAQ 2011-07-05

How much hysteresis does the power control loop of the 81566A/67A show?
There are two threshold levels (if power control is active).

FAQ 2011-07-05

Is there a replacement product for the E5574A Optical Loss Analyzer?
Please contact your Keysight representative to discuss a configuration for your particular application.

FAQ 2011-07-05

When I calibrate power/ return loss / source modules, do I send the mainframe as well?
No, it is not required to send in a mainframe to calibrate individual modules.

FAQ 2011-07-05

Why would I want to use the analog output on the front of the optical head?
The analog output provides a voltage (0-2V) proportional to the optical power in a given range ...

FAQ 2011-07-05

I am going through several patch cables before I connect to my device. Where do I establish my reference?
If you are measuring return loss through several patch cables there are three calibrations which are ...

FAQ 2011-07-05

Is there an electrical extender cable available for the 8162xA/B optical heads?
The model number of this cable, with a length of 4 meters, is 81624CE.

FAQ 2011-07-05

Does the parameters 'averaging time' and 'speed' influence the power control loop of the 81566A/67A?
The user selected averaging time is effective for all internal power measurements...

FAQ 2011-07-05

How do I make high power measurements with an optical head?
The + 27 dBm optical heads are convenient for high-power measurements.

FAQ 2011-07-05

Why should I use an optical head for optical power measurements?
Use heads for bare fiber, open beam, highly accurate absolute power or high power measurements.

FAQ 2011-07-05

Is there an electrical extender cable for the 815xx series optical heads?
An electrical extender cable was available. However, we do no longer manufacture it.

FAQ 2011-07-05

Why can't I acquire the license key?
To rely on the CPU- ID remove the network-card before installing the PFL.

FAQ 2011-07-05

What is the difference between the 8162xA and the 8162xB optical heads?
The main difference is the 8162xB models (except the 81625B) offer an analog output, the 8162xA's do not.

FAQ 2011-07-05

Why can't I install the license key from my PFL CD-ROM?
If you have PFL version 1.0.3 the installation process is described on the CD-ROM (PFL README.pdf).

FAQ 2011-07-05

Will the 8164A mainframe print in color?
The 8164A will not print in color to an external printer.

FAQ 2011-07-05

How small is CD and PMD of the 8156xA?
The value of CD and PMD of the 8156xA is equivalent to the value of about 1 m optical fiber SMF28.

FAQ 2011-07-05

Should I use a Germanium (Ge) or a Indium Gallium Arsenide (InGaAs) optical head?
An important difference between Ge and InGaAs is the shape of the spectral responsivity curves.

FAQ 2011-07-05

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