Rs-232 mode, Rs-422 mode, Rs-485 mode – CUE smartCUE Interfaces User Manual
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smartCUE Interfaces | User Manual | Control Ports
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Bi-directional Serial RS-232/422/485
Overview
These bi-directional serial channels are used for RS-232, RS-422 and RS-485 communication.
Baud rate can be set to the following values: 300, 600, 1 200, 2 400, 4 800, 9 600, 19 200, 38 400, 57 600,
115 200, 230 400 and 460 800 Bd (bps).
Default mode for all channels is RS-232, other modes must be set in programming application. For more
details see programming manuals.
RS-232 Mode
Output signal levels for RS-232 are in the -10 V to +10 V range. This is default mode for all channels.
Connector pin out
SERIAL RS-232
5-pin 3.5 mm
Pin
Signal
Description
Direction
1 2 3 4 5
1
TxD
RS-232 Transmitted Data
From interface
2
RTS
RS-232 Request to Send
From interface
3
GND
Ground
4
RxD
RS-232 Received Data
To interface
5
CTS
RS-232 Clear to Send
To interface
RS-422 Mode
This mode must be set in the programming application.
Connector pin out
SERIAL RS-422
5-pin 3.5 mm
Pin
Signal
Description
Direction
1 2 3 4 5
1
Tx A+
RS-422 Transmit Data (Idles High)
From interface
2
Tx B-
RS-422 Transmit Data (Idles Low)
From interface
3
GND
Ground
4
Rx A+
RS-422 Receive Data (Idles High)
To interface
5
Rx B-
RS-422 Receive Data (Idles Low)
To interface
RS-485 Mode
This mode must be set in the programming application.
Connector pin out
SERIAL RS-485
5-pin 3.5 mm
Pin
Signal
Description
1 2 3 4 5
1
A+
RS-422 Transmit Data (Idles High)
2
B-
RS-422 Transmit Data (Idles Low)
3
GND
Ground
4
N.C.
RS-422 Receive Data (Idles High)
5
N.C.
RS-422 Receive Data (Idles Low)