Industrial RS-232 to RS-422/485 Converter
Industrial RS-232 to
RS-422/485 Converter
485DRCi
PRODUCT FEATURES
•
•
•
•
•
•
Model 485DRCi industrial-grade isolated serial converter changes RS-232
signals to RS-422 for increased range, or to RS-485 for increased range plus
multi-drop capability.
Designed for rugged industrial use, the 485DRCi is UL approved and certified
for operation in Class 1/Division 2 environments and also offers 2,000V 3-way
optical isolation on input, output, and power lines. In addition to optical isolation,
the unit has surge suppression on the RS-422/485 lines. This DIN rail mountable
converter optically isolates and converts unbalanced, full or half-duplex, RS232 signals to balanced RS-422/485 signals at baud rates up to 115.2 kbps.
Configuration is made via a 12-position DIP switch on the bottom of the converter.
Featuring Automatic Send Data Control circuitry, the converter does not require
special software control of handshake signals in RS-485 mode. Removable
terminal blocks for power and RS-422/485 signals make wiring easy. It is
powered by a supply voltage of 10 to 48 VDC which is isolated from all data and
signal ground lines. The 485DRCi may be suitable for use in Modbus and AllenBradley® DH-485 applications.
Data rates up to 115.2 kbps
Three-way 2,000V optical isolation (input, output, power)
Wide (-40 to +80 °C) operating temperature
UL Class 1/Division 2
Modbus ASCII/RTU, Allen-Bradley® DH-485 compatible
10–48 VDC input power range
ORDERING INFORMATION
MODEL
NUMBER
485DRCi
RS-232 CONNECTOR
DB9 Female (DCE)
RS-422/485 CONNECTOR
Removable Terminal Block
ISOLATION
2,000 V
ACCESSORIES
MDR-20-24 - DIN rail mount power supply 24VDC, 1.0 A output power
EK-CLIP-MPC - Replacement DIN Rail Clip
TBKT1 - Replacement Terminal Block, 2 position 5.08mm
TBKT2 - Replacement Terminal Block, 5 position 5.08mm
31D1-28100 - Null Modem Adapter (Allen-Bradley® applications)
IN THE FIELD
Resolving Electrical
Substation Data Glitches
Industry: Energy & Natural Resources
Utilities
Product: Optically Isolated Converter
Automatic Send Data Control Explained
As operating systems become more complex, it is increasingly difficult to control
an RS-485 driver with standard software and the RTS line. This is especially true
in Windows and multi-tasking operating systems. With B+B SmartWorx’ Automatic
Send Data Control circuit, driver control is in the converter hardware, so you do not
have to work with software at all.
The circuit monitors data flow and enables the driver during transmission and
automatically disables it when no data is being sent. There is no need to rework
software or install new drivers. Most B+B SmartWorx RS-232 to RS-485 converters
and RS-485 serial cards include Automatic Send Data Control.
Allen-Bradley® 1761-NET-AIC
The 485DRCi can be used as a replacement for the Allen-Bradley® Advanced
Interface Converter (AIC+) in some applications. The 31D1-28100 null modem
adapter accessory is required for these applications. Contact B+B SmartWorx
Technical Support for assistance regarding your specific installation needs. A White
Paper is also available at the B+B SmartWorx online technical library.
www.advantech-bb.com / Enabling an Intelligent Planet
Some logos, names and words are trademarks of their respective owners.
All product specifications are subject to change without notice.
485DRCi_0117ds
Industrial RS-232 to
RS-422/485 Converter
485DRCi
SPECIFICATIONS
SERIAL TECHNOLOGY
Data Rate
RS-232
Connector
Signals
RS-422/485
Connector
RS-485, 2-wire
RS-422/485, 4-wire
ISOLATION
Rating
Lines Protected
Method
SURGE SUPPRESSION
Lines Protected
Rating
Clamping/Response Time
INDUSTRIAL BUS
Modbus
DH-485
POWER
Connector
Voltage
Consumption
Source
MECHANICAL
LED Indicators
Dimensions
Enclosure
Weight
1.2 to 115.2 kbps
DB9 female (DCE)
TD, RD, GND
Removable terminal block, 28 to 14 AWG
Data A(-), Data B(+), GND
TDA(-), TDB(+), RDA (-), RDB(+), GND
2,000 V
3-way (input, output, power lines)
Optical
Data lines
600W peak power dissipation
< 1 pico-second
ASCII/RTU
Allen-Bradley® Data Highway 485 (DH-485)
ENVIRONMENTAL
Operating Temperature
-40 to +80 °C (-40 to +176 °F)
Storage Temperature
-40 to +85 °C (-40 to +185 °F)
Operating Humidity
0 to 95% non-condensing
MTBF
254617 hours
MTBF Calculation Method Parts Count Reliability Prediction
CLASS 1/DIVISION 2 WIRING
Type
Solid copper only
Size
28 to 14 AWG
Temperature
105 °C (221 °F) minimum
Terminal Torque
0.5 Nm (Newton-meters)
APPROVALS / CERTIFICATIONS - 485DRCI
cUL 508, File Number: E222870 (C1 D2 E245458)
FCC Part 15, EN 55022: 2010 + AC Class B Emissions
CE
EN 61000-6-1: Generic Standards for Residential, Commercial and Light-Industrial
Environments
EN 61000-4-2: Electro-Static Discharge (ESD)
EN 61000-4-3: +A2 Radiated Field Immunity
EN 61000-4-4: Electrical Fast Transients-Burst Immunity
EN 61000-4-6: Conducted Immunity
Removable terminal block, 28 to 14 AWG
10-48 VDC
960 mW
External
Transmit, Receive, and Power
11.4 x 3.3 x 12.4 cm (4.5 x 1.3 x 4.9 in)
35mm DIN mount, plastic, IP30
204.12 g (0.45 lb)
MECHANICAL DIAGRAM
3.3 cm
1.3 in
12.4 cm
4.9 in
11.4 cm
4.5 in
orders@advantech-bb.com
support@advantech-bb.com
Corporate Headquarters: 707 Dayton Road, PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104
European Office: Westlink Commercial Park, Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising