Pn7942r1-485USBTB-xW-2712ds page 1/4
©2008 B&B Electronics. All rights reserved
B&B ELECTRONICS
485USBTB-2W & 485USBTB-4W
USB to RS-485 Mini-Converter
Connect RS-485 Devices to your USB Port
Perfect for Field Service Applications
Small – Fits easily into any laptop bag
USB Port Powered
USB 2.0 (12 Mbps) Compatible
RS-485 Data rates up to 921.6 Kbps
Removable Terminal Block for Easy Wiring
High Retention USB Connector
Supports Windows 98, ME, 2000, XP, Vista,
Win7 32 & 64 bit
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.
Driver CD
To connect these devices to modern PCs, you need
a simple and reliable conversion solution. The
485USBTB-2W and 485USBTB-4W offer this
solution in a space saving, USB Port powered
Operating Temp
Storage Temp
Op Humidity
MTBF
MTBF Method
Approvals
the drivers supplied on CD ROM. The device will
show up as an additional COM port in the Windows
Device Manager which is fully compatible with your
Windows applications. Select the 485USBTB-2W
for RS-485 2-wire applications or the 485USBTB-
4W for RS-485 4-wire applications. Locked serial
number versions are also available (see the
installation notes in the driver section). A one meter
USB cable is included.
Model Number
485USBTB-2W
485USBTB-4W
485USBTB-2W-LS
485USBTB-4W-LS
Accessories
USBAMBM-3F
7372
Dimensions
Enclosure
Weight
RS-485 2-Wire
RS-485 4-Wire
Connector
Data Rate
Connector
Standard
Data Rate
Source
Input Voltage
Consumption
Specifications
Serial Technology
Data A(-), Data B(+), Ground
TDA(-), TDB(+), RDA(-), RDB(+), Ground
Removable Terminal Block (28 to 16 AWG)
Up to 921.6 Kbps
USB Technology
USB Type B Female (High Retention)
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
2.6 x 1.3 x .6 in (6.5 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)
1869313 hours
Parts Count Reliability Prediction
Regulatory
FCC, CE
PRODUCT INFORMATION
package. Simply plug the converter into an available
USB port on your computer or USB hub and install
Ordering Information
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)
Replacement TB (One Included)
www.bb-elec.com
orders@bb-elec.com
support@bb-elec.com
International Office:
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
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