Application example: Extending communication distance with RS485

RS232 to RS232 / RS485 / RS422

Industrial Isolated Converter

Part no. UT503

UT503 is an industrial strength optically isolated

RSR232 to RS422 / RS485 converter powered by

an external power supply. With its standard DIN rail

mount and optional screw terminals it is a great

choice for industrial and commercial applications

and for general use where isolation against high

voltage spikes and surges is critical.

Pin

RS232

DB9

1

2

TXD

3

RXD

4

DTR

5

GND

6

DSR

7

RTS

8

CTS

9

RI

SPECIFICATIONS

Model number

UT503

Indication LED lights

Power, TX, RX

Baud rate

300 - 115200bps

Power

External 9-30VDC

Current

< 350mA

RS232 Interface

DB9

RS485/422 interface

Screw terminal

Isolation

2.5KVrms/600VDC isolation,

dedicated DC/DC module, 600W +/-

15KV ESD protection for each RS-

485/422 line

Standards

EIA/TIA RS-232/485/422

Installation

35mm standard DIN rail / screws

Handshake / flow

control

Automatic Send Data Control

Certifications

CE, FCC, RoHS ISO 9001

Certified

Operating Temp.

-40°C to 85°C

Operating humidity

5% To 95% - No Condensation

Warranty

5-year Limited Warranty

ECCN

4A994.a

Schedule B

8471.80.1000

HTS

8517.18.0050

To access technical support, please visit the

U.S. Converters website at:

www.USconverters.com

Here you will find:

- Latest drivers and updates for download

- Technical tips

- Documentation

- Configuration support

- and much more…

Feel free to contact our technical support team

at mail@usconverters.com with any issues.

Copyrights © U.S. Converters

Pin

RS422

RS485

1

T/R+

A+

2

T/R-

A-

3

RXD+

4

RXD-

5

6

7

8

VCC 9-

30VDC

VCC 9-

30VDC

9

GND

GND