All product specifications are subject to change without notice.

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Industrial Isolated Converter

Model 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)

• 115.2 kbps data rate

• Modbus compatible

• UL Recognized, NEMA TS2

• Automatic Send Data Control

PRODUCT FEATURES

ACCESSORIES

MDR-20-24 - PS, DIN, SLIM, PLASTIC, 24W, 24V

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

SPECIFICATIONS

SERIAL TECHNOLOGY

Data Rate

115.2 kbps

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 Ohm (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

485LDRC9_3316ds