485USB9F-2W, 485USB9F-4W - Datasheet

Pn#7753r1-485USB9F-xW-4208ds page 1/4
©2008 B&B Electronics. All rights reserved
PRODUCT INFORMATION 485USB9F-2W & 485USB9F-4W
USB to RS-485 Mini-Converter 9 Connect RS-485 Devices to your USB Port
9 Perfect for Field Service Applications 9 Small – Fits easily into any laptop bag 9 USB Port Powered 9 USB 2.0 (12 Mbps) Compatible 9 RS-485 Data rates up to 921.6 Kbps 9 Supports Windows 98, ME, 2000, XP, & Vista Specifications
Universal Serial Bus (USB) has become the
connectivity workhorse of today’s PCs, replacing the
familiar serial ports. However, many commercial
and industrial devices still use the RS-485 interface.
To connect these devices to modern PCs, you need
a simple and reliable conversion solution. The
Source
Input Voltage
Consumption
Driver CD
solution in a space saving, USB Port powered
Dimensions
Enclosure
Weight
USB port on your computer or USB hub and install
the drivers supplied on CD ROM. The device will
B&B ELECTRONICS
Connector
Standard
Data Rate
485USB9F-2W and 485USB9F-4W offer this
package. Simply plug the converter into an available
show up as an additional COM port in the Windows
Device Manager which is fully compatible with your
Windows applications. Choose the 485USB9F-2W
for RS-485 2-wire applications or the 485USB9F4W for RS-485 4-wire applications. Locked serial
number versions are also available (see the
Operating Temp
Storage Temp
Op Humidity
MTBF 2-Wire
MTBF 4-Wrie
MTBF Method
Approvals
Ordering Information
Model Number
485USB9F-2W
485USB9F-4W
485USB9F-2W-LS
485USB9F-4W-LS
installation notes in the driver section). A one meter
USB cable is included. Remember, when it comes
Serial Technology
Data A(-), Data B(+), Ground
TDA(-), TDB(+), RDA(-), RDB(+), Ground
DB9 Female
Up to 921.6 Kbps
USB Technology
USB Type B Female
2.0 (Backward Compatible)
12 Mbps
Power
USB Port
5 VDC
~ 0.5 W (Low power device, draws less than
100 mA)
Software
Windows 98, ME, 2000, XP, Vista
Mechanical
2.3 x 1.3 x .6 in (5.8 x 3.2 x 1.6 cm)
In-line mounted, plastic
0.23 lbs (104.3 g) with USB Cable
Environmental
32 to 158°F (0 to70 °C)
-40 to 185 °F (-40 to 85 °C)
0 to 95 % (Non-condensing)
2130833 hours
1869313 hours
Parts Count Reliability Prediction
Regulatory
FCC, CE
RS-485 2-Wire
RS-485 4-Wire
Connector
Data Rate
Accessories
USBAMBM-3F
Description
USB to RS-485 2-Wire Converter
USB to RS-485 4-Wire Converter
USB to RS-485 2-Wire Converter (Locked
Serial Number)
USB to RS-485 4-Wire Converter (Locked
Serial Number)
3 ft (1 M) USB Cable (One Included)
to USB to Serial Conversion, B&B Electronics
Ulinx™ brand is your number one choice.
International Headquarters: 815-433-5100 Fax 433-5104 www.bb-elec.com
European Headquarters: +353 91 792444 Fax +353 91 792445 www.bb-europe.com Pn#7753r1-485USB9F-xW-4208ds page 2/4
©2008 B&B Electronics. All rights reserved
PRODUCT INFORMATION Package Contents
•
•
•
•
• Select Install the software automatically and click
Next>
485USB9F-xx USB to RS-485 Mini-Converter
3ft (1m) USB Cable
Datasheet
CD with Drivers for Windows 98, ME, 2000, XP and
Vista
If any item is missing or damaged, contact B&B Electronics
for a replacement.
DB9F
• A warning concerning Windows logo testing will
be displayed. Click on Continue Anyway >
Pin
1
2
3
4
5
6
7
8
9
DB9 Female Connector
485USB9F-2W
485USB9F-4W
Not Used
Not Used
Data A(-)
RDA(-)
Data B(+)
TDB(+)
Ground
Ground
Not Used
Not Used
Ground
Ground
Data B(+)
RDB(+)
Data A(-)
TDA(-)
Not Used
Not Used
Driver Installation
B&B ELECTRONICS
Screen shots are from Windows XP
THE FOUND NEW HARDWARE WIZARD WILL
RUN TWICE. ONCE TO INSTALL THE USB
DEVICE AND ONCE TO INSTALL THE SERIAL
COM PORT.
• Connect the converter to your PCs USB port with
the supplied cable.
• The Found New Hardware wizard will start.
• When prompted to connect to Windows Update
to search for the driver, select “No, not at this
time” and click on Next >
• The Completing the Found New Hardware Wizard
will be displayed. Click on Finish >
THE FOUND NEW HARDWARE WIZARD WILL
RUN TWICE. ONCE TO INSTALL THE USB
DEVICE AND ONCE TO INSTALL THE SERIAL
COM PORT.
International Headquarters: 815-433-5100 Fax 433-5104 www.bb-elec.com
European Headquarters: +353 91 792444 Fax +353 91 792445 www.bb-europe.com Pn#7753r1-485USB9F-xW-4208ds page 3/4
©2008 B&B Electronics. All rights reserved
Installation Notes
PRODUCT INFORMATION Check Drivers
Screen shots are from Windows XP
• Right click on My Computer. Select the Hardware
tab.
• Expand the Ports (COM & LPT) tree. The USB
Serial Port will be listed as the next available
COM Port.
• These USB to serial converters are offered as serialized
(each unit has a unique electronic serial number) or with
locked serial numbers (each unit has the same
electronic serial number). LS models are great for
applications, such as field service, in which a pool of
converters area shared.
• SEARIALIZED – Select a serialized model if the USB to
serial Converter is to be assigned to a unique COM port.
If you plug in a converter with a different serial number,
the driver installation procedure will be initiated again.
This will also allocate another COM port and USB
Controller in Windows. This will happen even if the first
converter is not plugged in.
• LOCKED SERIAL NUMBER – Select a locked serial
number model (-LS suffix) if you desire different USB to
serial converters of the same type to share a single
COM port (one at a time). With the locked serial number
models, you only need to install the driver once,
provided two converters are not plugged in at the same
time. The locked serial number products are intended for
uses, such as field service, in which PC’s and
converters are mixed and matched.
• Instructions for uninstalling the driver are located on the
CD ROM.
B&B ELECTRONICS
485USB9F-2W Wiring
• Expand the USB Controllers tree. The USB Serial
Converter will be listed.
• This converter is used for RS-485 2-Wire Systems.
• Connect RS-438 2-W signal leads as shown above.
• Bias is provided by 4.7KΩ pull-up and pull-down
resistors.
• If termination is required, it must be installed externally.
In most cases, termination is not required.
• During operation, the receiver toggles with the transmit
data.
• Refer to B&B Electronics’ RS-422/485 Application Note
for more information regarding biasing and termination.
International Headquarters: 815-433-5100 Fax 433-5104 www.bb-elec.com
European Headquarters: +353 91 792444 Fax +353 91 792445 www.bb-europe.com Pn#7753r1-485USB9F-xW-4208ds page 4/4
©2008 B&B Electronics. All rights reserved
485USBTB-4W Loop
Back Test
PRODUCT INFORMATION 485USBTB-4W Wiring
• This converter is used for RS-485 4-Wire Systems.
• Connect the RS-485 4-Wire signal leads as show above.
• Bias is provided by 4.7KΩ pull-up and pull-down
resistors.
• If termination is required, it must be installed externally.
In most cases, termination is not required.
• During operation, the receiver is always active.
• Refer to B&B Electronics’ RS-422/485 Application Note
for more information regarding termination and biasing.
B&B ELECTRONICS
485USBTB-2W Back to
Back Test
• Loopback DB9 pins as show above.
• Using Hyper Terminal or similar program,
connect to the appropriate COM port. Set the
desired baud rate. Ensure Hyper Terminal local
echo is OFF.
• Transmit data. If the same character string is
returned, the test is good.
• A detailed description of this test is located in the
technical notes section of our web page,
www.bb-elec.com.
• Due to the circuit configuration, a loop back test
is not possible with this model. However, two
converters can be used in a back to back
configuration.
• Wire the converters as shown above.
• Using Hyper Terminal or similar program,
connect to the appropriate COM ports. Set the
desired baud rate.
• Transmit data. If the same string is received on
the distant end, the test is good.
International Headquarters: 815-433-5100 Fax 433-5104 www.bb-elec.com
European Headquarters: +353 91 792444 Fax +353 91 792445 www.bb-europe.com Mouser Electronics
Authorized Distributor
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485USB9F-2W 485USB9F-4W
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