EXFO IQS-600 Integrated Qualification System - Manual (Page 278)

Data Types
270 IQS-600
Applicable Data Types for Input—IEEE 488.2
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<SUFFIX PROGRAM DATA>
This data type is used when units and multipliers have to be sent.
Examples: nm, kHz, km/s2, uW
A relative unit (dB) can be referenced to an absolute level, as shown on the
following diagram.
Examples: db, dbm, dBW