EXFO FTB-500 - B IEEE 488.2 and Specific Command Reference; IEEE 488.2 Commands-Quick Reference

Data Types
FTB-500 333
Applicable Data Types for Output —IEEE 488.2
 <HEXADECIMAL NUMERIC RESPONSE DATA>
This data type will be used by a device to return integer representations
in hexadecimal (base 16).
Examples: #HA3C5, #H0123C, #H010F
# H C
B
A
D
E
<digit>
F