Motorola Symbol DS3407 Reference Manual page 183

Transmit Buffer
There are two methods to transmit the Code 39 buffer.
Scan the Transmit Buffer bar code below, which contains only a start character, a plus (+), and a stop
1.
character.
•
The digital scanner transmits and clears the buffer.
•
The digital scanner issues a Low/High beep.
Scan a Code 39 bar code with a leading character other than a space.
2.
•
The digital scanner appends new decode data to buffered data.
•
The digital scanner transmits and clears the buffer.
•
The digital scanner signals that the buffer was transmitted with a low/high beep.
•
The digital scanner transmits and clears the buffer.
NOTE The Transmit Buffer bar code contains only a plus (+) character. Set the Code 39 length to include
Length 1 In order to scan this command.
Overfilling Transmission Buffer
The Code 39 buffer holds 200 characters. If the symbol just read results in an overflow of the transmission buffer:
•
The digital scanner indicates that it rejected the symbol by issuing three long, high beeps.
•
No transmission occurs. This does not affect the data in the buffer.
Attempt to Transmit an Empty Buffer
If the symbol just read was the Transmit Buffer symbol and the Code 39 buffer is empty:
•
A short low/high/low beep signals that the buffer is empty.
•
No transmission occurs.
•
The buffer remains empty.
Symbologies 10 - 35
Transmit Buffer