Datalogic Scanning Matrix-2000 사용자 설명서
MATRIX-2000™ REFERENCE MANUAL
4
4.2.2 RS485
Full-Duplex
Interface
The RS485 full-duplex (5 wires + shield) interface is used for non-polled communication
protocols in point-to-point connections over longer distances (max 1200 m / 3940 ft) than
those acceptable for RS232 communications or in electrically noisy environments.
The CBX pinout follows:
protocols in point-to-point connections over longer distances (max 1200 m / 3940 ft) than
those acceptable for RS232 communications or in electrically noisy environments.
The CBX pinout follows:
CBX100/500
Function
TX+
RS485 Transmit Data +
RX+
RS485 Receive Data +
TX-
RS485 Transmit Data -
RX-
RS485 Receive Data -
SGND Signal
Ground
RX485+
TX485+
SGND RX485- TX485-
USER INTERFACE
SGND TX+
RX+
TX- RX-
READER
Figure 44 - RS485 Full-duplex Connections
NOTE
For applications that do not use RX485 signals, do not leave these lines
floating but connect them to SGND as shown below.
floating but connect them to SGND as shown below.
RX485+
SGND RX485-
USER INTERFACE
SGND TX+
TX-
READER
Figure 45 - RS485 Full-duplex Connections using Only TX Signals
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