EXFO IQS-600 Integrated Qualification System - Manual (Page 287)

Data Types
Integrated Qualification System 279
Applicable Data Types for Output —IEEE 488.2

This data type is used by a device to return integer representations in
binary (base 2).
Examples: #B11011110101, #B110100, #B0100

This data type is used by a device to return strings containing 7-bit
ASCII characters and especially when text has to be displayed since
even the non-printable characters are also returned.
Examples: "SCPI Commands", "SCPI ""Commands"""