Campbell-scientific SDM-SIO1 Serial Input/Output Module Manuel d'utilisateur télécharger pdf (Page 18)

SDM-SIO1 Serial Input/Output Module

3.3.5 RS-232 Wiring Example with Handshaking

1 C1

2 C2

3 C3 To logger

4 G

5 +12V

6 G 0V

7 RX-A RS-232_RX

8 CTS-B RS-232 RTS

9 RTS-Y RS-232 CTS

10 TX-Z RS-232 TX

RS-232 DCE

equipment

11 0V

DTE DCE

12 Z

13 Y

14 B

15 A

* Note CTS and RTS are optional if hardware

handshaking is not required. Not connecting the

handshaking lines will decrease the overall current

consumption of the SDM-SIO1 and the RS-232

device.

3.3.6 RS-232 Basic 3-Wire Example

1 C1

2 C2

3 C3 To logger

4 G

5 +12V

6 G 0V

7 RX-A RS-232_RX

8 CTS-B

9 RTS-Y

10 TX-Z RS-232 TX

RS-232 DCE

equipment

11 0V

DTE DCE

12 Z

13 Y

14 B

15 A

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 33 34

SDM-SIO1 Serial 1
Input/Output Module 1
Warranty 3
Assistance 4
Table of Contents 5
1. Introduction 7
2. Specifications 8
2.2 Electrical Parameters 9
2.2.3 EMC Compliance 10
3. Installation 11
3.1 Connections 12
3.2 Safety Considerations 14
Equipment 15
3.4 Power Conservation 19
4.1.1 SerialOpen() 20
4.1.2 SerialClose() 23
4.1.3 SerialIn() 23
4.1.4 SerialOut() 23
5.1 Upgrading the Firmware 28
A.1 The Input Pin (Pin 8) 29
A.2 The Output Pin (Pin 9) 30

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Campbell-scientific SDM-SIO1 Serial Input/Output Module Manuel d'utilisateur Page 18

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