Datalogic Scanning DL Cordless Card DLCC - Manual (Page 45)

PARAMETER ISSUES AND DEFINITIONS
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Two way mode:
Host sends a message to DLCC which passes it to the destination device via radio.
The destination device transmits the message to the Remote Host which responds
with DATA. This answer is sent to DLCC through the destination device. Then, the
card transmits it to the Host.
If the Radio Protocol Timeout expires before the answer from Remote Host is
received by DLCC or in case the Remote Host does not respond, DLCC sends a
NACK character to the Host.
Message Message
DATA
Remote Host answer
Host
Remote Host
2 Way Transmission Mode
NOTE
If the Host continues to send new messages before receiving any
answer from the Remote Host, it is strongly suggested to enable the
handshaking on the Host connected to DLCC for a correct
functioning.
4.4.6 Beacon (Client only)
If this parameter is enabled, DLCC polls the server for data at regular intervals
(configurable from 2 to 30 seconds) by sending a character ENQ (ASCII 05) with a 2
way transaction. The server must always respond with data or with an Empty
Answer.
The selection of this parameter does not influence the card normal radio transaction.
This means that it does not modify the transmission of data sent by the Local Host.
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