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Industrial Isolated Converter

485LDRC9

The 485LDRC9 is an optically isolated RS-232 to RS-422/485 converter.

RS-232 signals interface through a DB9 female connector or a terminal

block. RS-422/485 signals and power inputs connect to the terminal block.

Terminal blocks are arranged to allow easy wiring inside a control panel.

Built-in Automatic Send Data Control circuitry allows quick set-up

and eliminates the need for external software drivers to control handshake

signals. The converter operates on externally sourced 10-30 VDC power.

Optically isolated data lines (2,000 V on input/output) with 500W surge

suppression ensure that connected equipment is protected even in the

harshest environments. DIN rail mount design snaps on standard 35mm

rail and a small form factor ﬁts neatly into

tight cabinets.

The 485LDRC9 is ideal for critical industrial communications, factory

automation, in-cabinet conversion, warehouse automation, security, and

many other applications.

• Extenddataupto1.2km(4,000ft.)

• 2kVopticalisolationoninput/output

• Wideoperatingtemperature(-40to+80°C)

• Modbuscompatible

• ULRecognized,NEMATS2

• AutomaticSendDataControl

PRODUCT FEATURES

ACCESSORIES

MDR-40-24 - DIN Rail Mount Power Supply 24VDC, 1.7 A output power

9PAMF6 - 6 ft. (1.8 m) 232 DB9 male to DB9 female serial cable

SPECIFICATIONS

SERIAL TECHNOLOGY

RS-232 - 2 options

Option 1: Connector DB9 Female (DCE)

Option 1: Signals TD, RD, GND

Option 2: Connector Terminal block

Option 2: Signals TD, RD, GND

RS-422

Connector Terminal block

Signals TDA(-), TDB(+), RDA(-), RDB(+), GND

Termination 120 (switchable)

RS-485

Connector Terminal Block

Signals TDA(-), TDB(+), RDA(-), RDB(+), GND

Modes 2-wire and 4-wire

Termination 120 (switchable)

ISOLATION

Lines Protected Data lines

Method Optical

Rating 2,000 V

SURGE SUPPRESSION

Lines Protected Data lines

Method TVS

Rating

7.5V bi-directional avalache breakdown device

500W peak power dissipation

Response Time < 1 pico-second

INDUSTRIAL BUS

Modbus ASCII/RTU

ORDERING INFORMATION

MODEL

NUMBER

RS-232 CONNECTOR RS-422/485 CONNECTOR

485LDRC9

DB9 Female or

Terminal Block

Terminal Blocks

Learn More!

READ ON!

RS-485 Problem Solver

www.bb-elec.com/485ProblemSolver

*Carrier data charges may apply.

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Page 1 - Industrial Isolated Converter

www.bb-elec.com | Industrial Isolated Converter485LDRC9The 485LDRC9 is an optically isolated RS-232 to RS-422/485 converter. RS-232 signals interface

Page 2

International Ofﬁce: 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 European Ofﬁce: Westlink Commercial Park Oranmor

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Bb-electronics 485LDRC9 - Datasheet Manuel d'utilisateur

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