Port Powered
RS-232/485 Converters
Models BB-485SD9R, BB-485SD9RJ, BB-485SD9TB www.advantech.com
PRODUCT FEATURES
Extend RS-232 data signals up to 1.2 km (4000 ft)
Convert RS-232 TD and RD to RS-485 signals
Automatic Send Data Control - no software drivers necessary
Baud rates up to 115.2 kbps
Powered from RS-232 handshake lines - no power supply required
Model
BB-485SD9R
These port-powered, two channel converters allow your computer to
ORDERING INFORMATION
OPTIONAL
communicate longer distances by converting TD and RD RS-232 lines to
MODEL RS-232 RS-485
OUTPUT POWER
NUMBER CONNECTOR CONNECTOR
RS-485 signals. RS-485 also provides multi-drop capability.
SUPPLY
BB-485SD9R DB9 Female DB9 Female RS-485 2-wire -
All converters feature Automatic Send Data Control which enables the
BB-485SD9RJ DB9 Female RJ11 RS-485 2-wire -
driver when data is present on the RS-232 side. Control of the driver is
BB-485SD9TB DB9 Female Terminal Block RS-485 2-wire
automatic at speeds up to 115.2 kbps.
The unit is powered from the RS-232 data and handshake lines whether
ACCESSORIES - SOLD SEPARATELY
the lines are high or low. No handshake line change is necessary to
BB-SMi6-12-V-ST - Power Supply, 12 VDC 6 Watt, Stripped and Tinned,
control the data lines. The RS-485 driver is enabled with each bit of
International AC Input, International AC Blades
data. The RS-485 receiver is disabled when the driver is enabled and
BB-9PAMF6 - DB9 Male to DB9 Female Adapter Cable, 1.8 m (6 ft)
is enabled when the driver is disabled. Model BB-485SD9TB can be
optionally powered by an external 12 VDC power supply.
These converters are suitable for field service, where a power supply
would add clutter, or anywhere you need compact, easy-to-use,
economically priced serial conversion.
Why use an optional power supply
Automatic Send Data Control Explained
with a port-powered converter?
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
Simply put, all RS-232 ports are not created equal. Many laptop PCs, for
in Windows and multi-tasking operating systems. With Advantech B+B SmartWorx
example, deliberately reduce power to the RS-232 port to save the battery.
Automatic Send Data Control circuit, driver control is in the converter hardware, so
And, if you are working at the distance limits of RS-422 or 485, you might need
you do not have to work with software at all.
an extra boost. For the majority of applications though, the converters port
powering is sufficient to accomplish the task.
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 Advantech B+B RS-232 to RS-485 converters
and RS-485 serial cards include Automatic Send Data Control.
All product specifications are subject to change without notice.
485SD9R, 485SD9RJ, 485SD9TB_1719ds
orders@advantech-bb.com Headquarters: 707 Dayton Rd, PO Box 1040 Ottawa, IL 61350 USA (815)433-5100 or (800)346-3119/Toll Free Fax (815)433-5104
eSales@advantech-bb.com European Office: Westlink Commercial Pk, Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445Port Powered
Model
RS-232/485 Converters
BB-485SD9TB
Models BB-485SD9R, BB-485SD9RJ, BB-485SD9TB
SPECIFICATIONS
SERIAL TECHNOLOGY
ENVIRONMENTAL
Data Rate 115.2 kbps, maximum Operating Temperature 0 to +70 C (+32 to +158 F)
RS-232 Storage Temperature -40 to +85 C (-40 to +185 F)
BB-485SD9R: DB9 female
Operating Humidity 0 to 95%, non-condensing
Connector BB-485SD9RJ: DB9 female
REGULATORY
BB-485SD9TB: DB9 female
FCC Part 15, CISPR, CE
RS-485
2014/30/EU - Electromagnetic Compatibility
BB-485SD9R: DB9 female
2011/65/EU - Reduction of Hazardous Substances (RoHS)
BB-485SD9RJ: RJ11
CE - Directives
2012/19/EU - Waste Electrical and Electronic Equipment
BB-485SD9TB: Terminal board
(WEEE)
Biasing Resistors 4.7k Ohms
EN 55032 Class B - Electromagnetic Compatibility of
POWER
Multimedia Equipment - Emission Requirements
Port-powering: from RS-232 handshake lines.
Source EN 55024 - Information Technology Equipment - Immunity
External power option, 12-16 VDC (BB-485SD9TB only)
Characteristics - Limits and Methods of Measurement
Power Connector Terminal block (BB-485SD9TB only)
CE - Standards EN 61000-6-3 + A1 - Generic Emission Standard for
Input Voltage 12 VDC (BB-485SD9TB only)
Residential, Commercial and Light-industrial Environments
Power Consumption 40mA, maximum
(Class B)
MECHANICAL
EN 61000-6-1 - Generic Immunity Standard for Residential,
BB-485SD9R: 6.0 x 3.2 x 1.6 cm (2.4 x 1.3 x 0.6 in)
Commercial and Light-industrial Environments
Dimensions BB-485SD9RJ: 7.3 x 3.2 x 1.6 cm (2.9 x 1.3 x 0.6 in)
BB-485SD9TB: 8.7 x 3.2 x 1.6 cm (3.4 x 1.3 x 0.6 in)
Enclosure Plastic
Weight 81.6 gm (0.18 lb)
BB-485SD9R: 986473 hours MECHANICAL DIAGRAM - MODEL BB-485SD9R
MTBF BB-485SD9RJ: 897656 hours
BB-485SD9TB: 968410 hours
3.18 cm
1.59 cm
MTBF Calc. Method MIL 217F Parts Count Reliability Prediction
1.25 in
0.63 in
WIRING INFORMATION
Refer to Quick Start Guide for wiring information, including terminal and pin identification.
Available on website.
6.03 cm
2.38 in
5.23 cm
2.06 in
MECHANICAL DIAGRAM - MODEL BB-485SD9TB
3.18 cm
1.25 in
0.79 cm
0.31 in
MECHANICAL DIAGRAM - MODEL BB-485SD9RJ
1.59 cm
3.18 cm
1.25 in 0.63 in
3.02 cm
1.19 in
1.59 cm
0.63 in
1.5 cm
0.59 in
7.31 cm
8.73 cm
2.88 in
3.44 in
5.23 cm
2.06 in
5.23 cm
2.06 in
Model 485SD9TB
orders@advantech-bb.com Headquarters: 707 Dayton Rd, PO Box 1040 Ottawa, IL 61350 USA (815)433-5100 or (800)346-3119/Toll Free Fax (815)433-5104
eSales@advantech-bb.com European Office: Westlink Commercial Pk, Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445