Serial, 21 serial, Overview – CUE uniCUE User Manual

Page 21: Rs-232 mode, Rs-422 mode, Rs-485 mode

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21

Touch Panel Controllers / Connecting

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SERIAL

Overview

These bi-directional serial channels are used for RS-232, RS-422 and RS-485 communication. Maximum

speed is 115 200 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 uniCUE

2

RTS

RS-232 Request to Send

From uniCUE

3

GND

Ground

4

RxD

RS-232 Received Data

To uniCUE

5

CTS

RS-232 Clear to Send

To uniCUE

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 uniCUE

2

Tx B-

RS-422 Transmit Data (Idles Low)

From uniCUE

3

GND

Ground

4

Rx A+

RS-422 Receive Data (Idles High)

To uniCUE

5

Rx B-

RS-422 Receive Data (Idles Low)

To uniCUE

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)

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