EXFO FLS-2200 Broadband Source - Manual (Page 142)

IEEE 488.2 and Specific Command Reference
134 FLS-2200
IEEE 488.2 Commands—Description
*WAI
Description The *WAI command shall prevent the device
from executing any further commands or queries
until the no-operation-pending flag becomes
TRUE.
Syntax *WAI
Parameter(s) None
Example(s) *WAI
See Also *OPC
*OPC?