EXFO IQS-9100B Optical Switch for IQS-500/600 - Manual (Page 91)

SCPI Command Reference
Optical Switch 85
Product-Specific Commands—Description
:ROUTe[1..n]:SCAN:PREV
Description This command moves the switch to its previous
position.
This command is an event and has no associated
*RST condition or query form.
Syntax :ROUTe[1..n]:SCAN:PREV
Parameter(s) None
Example(s) ROUT:SCAN 2
ROUT:SCAN:PREV
ROUT:SCAN? returns 1
See Also ROUTe[1..n]:SCAN
ROUTe[1..n]:SCAN?
ROUTe[1..n]:SCAN:NEXT