Motorola DS3478 - Manual (Page 300)

15 - 46 Symbol DS3478 Product Reference Guide
Beeps
Select a beep sequence for each ADF rule.
Send Keystroke (Control Characters and Keyboard Characters)
Control Characters
Scan a Send bar code to specify the keystroke to send.
Beep Once
Beep Twice
Beep Three Times
Send Control 2
Send Control A
Send Control B