Advantech BB-485LDRC9

The BB-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 BB-485LDRC9 is ideal for critical industrial communications, factory automation, in-cabinet conversion, warehouse automation, security, and many other applications.

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
Termination120 Ohms (switchable)

RS-485
Connector Terminal block
Signals TDA(-), TDB(+), RDA(-), RDB(+), GND
Modes 2-wire and 4-wire

Termination
120 Ohms (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



Power


Connector
Terminal block

Voltage
10-30 VDC

Consumption
0.5 W

Source
External power source required (not included)



Terminal Blocks


Wire Size
24 to 14 AWG

Torque
4 kfg-cm



LED Indicators


Power (RED)
On when power applied

TD (RED)
Flashes when RS-422/485 data is transmitted

RD (RED)
Flashes when RS-422/485 data is received



Enclosure


Material
Plastic

IP Rating
20

Dimensions
25 x 79 x 95 mm

Mounting
35 mm DIN rail



Environmental


Operating Temperature
-40 to +80 °C

Storage Temperature
-40 to +85 °C

Operating Humidity
0 to 95%, non-condensing



Meantime Between Failures (MTBF)


MTBF
257448 hours
Calculation Method MIL 217F Parts Count Reliability Prediction



Regulatory / Approvals / Certifications


cULus Recognized, KCC

Directives - CE
2014/30/EU - Electromagnetic Compatibility Directive (EMC)
2015/863/EU - Reduction of Hazardous Substances Directive (RoHS)
2012/19/EU - Waste Electrical and Electronic Equipment (WEEE)

Standards - CE
EN 55032 Class B - Electromagnetic Compatibility of Multimedia Equipment - Emission Requirements
EN55024 - Information Technology Equipment - Immunity Characteristics - Limits and Methods of Measuremen

Ordering Information

BB-485LDRC9

RS/422/485 Converter, Industrial

Accessories – sold separately

BB-9PAMF6

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