Appendix B: CONNECTOR PINOUTS

Table B.1: RS-232 Pinouts

Name

Description

 

 

Direction

 

DB9M

 

 

 

 

 

 

 

(DTE)

 

Pin

 

 

 

 

 

 

 

 

DCD

Data Carrier Detect

 

Input

 

1

 

RD

Receive Data

 

 

Input

 

2

 

TD

Transmit Data

 

 

Output

 

3

 

DTR

Data Terminal Ready

 

Output

 

4

 

GND

Signal Ground

 

 

------

 

5

 

DSR

Data Set Ready

 

 

Input

 

6

 

RTS

Request to Send

 

Output

 

7

 

CTS

Clear to Send

 

 

Input

 

8

 

RI

Ring Indicator

 

 

Input

 

9

 

Table B.2: RS-232 DB9 to DB25 Conversion Cable

 

 

 

 

 

 

 

 

 

 

 

 

Name

 

DB9 Pin

DB25 Pin

 

 

 

 

 

 

(DTE)

 

(DTE)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DCD

 

1

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RD

 

2

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TD

 

3

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DTR

 

4

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

5

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DSR

 

6

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RTS

 

7

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CTS

 

8

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RI

 

9

 

 

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chassis

 

Shield

 

1

 

 

 

 

 

 

GND

 

(DB9

 

 

 

 

 

 

 

 

 

 

Shell)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Documentation Number 3PCIO1-0903 Manual

Appendix B

B -1

B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

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B&B Electronics RS-422 Appendix B Connector Pinouts, Table B.1 RS-232 Pinouts Name Description Direction, DB9 Pin DB25 Pin

RS-422 specifications

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