Datalogic Scanning D8330 Manuel D’Utilisation

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REFERENCES 
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5  REFERENCES 
 
 
5.1  RS-232 PARAMETERS 
 
5.1.1 
Handshaking 
 
Hardware handshaking: (RTS/CTS) 
The RTS line is activated by the decoder before transmitting a character. 
Transmission is possible only if the CTS line (controlled by the Host) is active. 
 
RTS 
Transmitted data
Transmitted data
TX 
CTS 
Host busy
Signals at 
EIA levels 
 
RTS/CTS handshaking 
 
 
Software handshaking: (XON/XOFF) 
During transmission, if the Host sends the XOFF character (13 Hex), the decoder 
interrupts the transmission with a maximum delay of one character and only resumes 
when the XON character (11 Hex) is received. 
 
Host ready
Host busy
XON 
XOFF 
RX 
Transmitted data
Transmitted data
TX 
 
XON/XOFF handshaking