Motorola symbol ds9808 Reference Manual page 61

Trigger B (DS9808-LR/LL Only)
Parameter # F1 78h
Laser Preferred Decoding
(00h)
RFID Reading
(02h)
Preferred
Laser Plus RFID
(04h)
Laser Only Decoding
(06h)
User Preferences & Miscellaneous Digital Scanner Options 4 - 21
Imager Decoding
(01h)
Imager Plus RFID
(03h)
*
Set to Trigger A Value
(05h)