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Pin Assignment

UPort DB9 Pin Assignments

The UPort 1100 series uses male DB9 connectors. Pin assignments are shown in the following diagram:

DB9 (male)

Pin

RS-232

RS-422 4-wire

2-wire RS-485

 

 

 

 

 

 

 

 

RS-485

 

 

 

 

 

 

 

1

DCD (in)

TxD-(A)

-

1

 

5

2

RxD (in)

TxD+(B)

-

 

3

TxD (out)

RxD+(B)

Data+(B)

 

 

 

 

 

 

 

 

 

 

 

 

4

DTR (out)

RxD-(A)

Data-(A)

 

 

 

 

 

 

 

 

 

 

 

 

5

GND

GND

GND

 

 

 

 

 

 

 

 

 

 

 

6

DSR (in)

-

-

6

9

 

7

RTS (out)

-

-

 

 

 

 

 

 

 

 

 

 

 

 

8

CTS (in)

-

-

Terminal Block Pin Assignments

The UPort 1130/1150/1150I comes with a DB9 to terminal block converter, with pin assignments as shown below:

Terminal Block

Pin

RS-422 4-wire

2-wire RS-485

RS-485

 

1

TxD+(B)

-

 

2

TxD-(A)

-

 

3

RxD+(B)

Data+(B)

 

4

RxD-(A)

Data-(A)

 

5

GND

GND

Note that the converter maps pin 1 on the DB9 connector to pin 2 on the terminal block, and pin 2 on the DB9 connector to pin 1 on the terminal block.

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Image 26
Moxa Technologies 1100, 1130, 1150I user manual UPort DB9 Pin Assignments, Terminal Block Pin Assignments