CBX800 INSTALLATION MANUAL
20
DATA SOURCE INTERFACE
The Data Source port can be used for configuration and data monitoring purposes. It allows full RS232/RS485
connectivity and is software selectable.
Data Source RS232 Interface
The following pins are used for RS232 interface connections:
Pinout
Function
TX Transmit Data
RX Receive Data
RTS Request To Send
CTS Clear To Send
SGND Signal Ground
SGND RXD CTS TXD RTS
USER INTERFACE
SGND TX RTS RX CTS
CBX800
Figure 22 – RS232 Data Source Interface Connections
Data Source RS485 Full-Duplex Interface
The following pins are used for RS485 Full-duplex interface connections:
Pinout
Function
TX+ RS485 Transmit Data +
RX+ RS485 Receive Data +
TX- RS485 Transmit Data -
RX- RS485 Receive Data -
SGND Signal Ground
SGND RX485+ RX485- TX485+ TX485-
USER INTERFACE
SGND TX+ TX- RX+ RX-
CBX800
Figure 23 - RS485 Full-duplex Connections
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