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VXI Technology, Inc.
66 SM8000 Series Programming
83h
Command Name
Query Maximum Attenuation
Command Format
83h
Description
The Query Maximum Attenuation command returns the maximum attenuation setting
in a 2-byte (16-bit) format.
Example
The following example shows how to translate the HIGH_BYTE-LOW_BYTE
returned value into a dB attenuation value:
1. 0Dh & 6Fh = 0D6Fh
HIGH_BYTE and LOW_BYTE value to
hexadecimal value.
2. 0D6Fh = 3439
Convert hexadecimal value to an integer
decimal value.
3. 3439 / 100 = 34.39
Divide by 100 to convert to dB value.
89h
Command Name
Query Calibration Wavelength
Command Format
89h
Description
The Query Calibration Wavelength command returns the calibration wavelength value
in a 2-byte (16-bit) format. The calibration wavelength is an integer value that
represents the wavelength at which the attenuator was calibrated.
Example
The following example translates the HIGH_BYTE-LOW_BYTE returned value into
a decimal integer value:
1. 05h & DCh = 05DCh
HIGH_BYTE and LOW_BYTE value to
hexadecimal value.
2. 05DCh = 1500nm
Convert hexadecimal value to an integer
decimal value for wavelength (nm).