B&B Electronics 485DRCI - Datasheet - Manual

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industrial rS-232 to rS-422/485 Converter
485DRCi
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, RS-232 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.
• Data rates up to 115.2 kbps
• Three-way 2,000V optical isolation (input, output, power)
• Wide operating temperature
• UL Class 1/Division 2
• Modbus ASCII/RTU compatible
• 10–48 VDC input power range
proDuCt FeatureS
aCCeSSorieS
MDR-40-24 - DIN Rail Mount Power Supply 24VDC, 1.7 A output power
EK-CLIP-MPC - Replacement DIN Rail Clip
TBKT1 - Replacement Term Block, 2 position 5.08mm
TBKT2 - Replacement Term Block, 5 position 5.08mm
orDering inFormation
Model
nuMber
rs-232 ConneCtor rs-422/485 ConneCtor isolation
485DRCi DB9 Female (DCE) Removable Terminal Block 2,000 V
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
Electronics’ 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 Electronics RS-232 to RS-
485 converters and RS-485 serial cards include Automatic Send Data Control.
Resolving Electrical
Substation Data Glitches
Industry: Energy & Natural Resources
Utilities
Product: Optically Isolated Converter
www.bb-elec.com/
Substation
485DRCi
Carrier data charges
may apply.
in the FieLD
485DRCi_3713ds