Datalogic-scanning DL Cordless Card DLCC Manual do Utilizador Página 34

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DL CORDLESS CARD™
4
4.2 COM PORT PARAMETERS
4.2.1 Handshaking
Modem: (RTS/CTS)
DLCC deactivates the RTS line when it cannot receive a character from the Host.
DLCC can transmit data only if the CTS line (controlled by the Host) is active.
Received data Received data
RX
RTS
Modem busy
Signals at
EIA levels
DLCC™ Side
Host Side
Transmitted data Transmitted data
TX
CTS
Host busy
DLCC™ Side
Host Side
Signals at
EIA levels
Modem RTS/CTS Handshaking
20
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