Motorola SYMBOL LS9203 - Manual (Page 123)

RS-232 Interface 6-31
Beep on <BEL>
When this parameter is enabled, the scanner issues a beep when a <BEL> character is detected on the RS-232 serial line. <BEL> is
issued to gain a user's attention to an illegal entry or other important event.
Beep On <BEL> Character
(Enable)
*
Do Not Beep On <BEL> Character
(Disable)