B&B ELECTRONICS
USOPTL4-xP-3409ds - 1/2
©2009 B&B Electronics. All rights reserved
Isolated USB to 2 or 4 Port RS-422/485
Models: USOPTL4-2P & USOPTL4-4P
Features
Connects multiple RS-422/485 devices to your USB Port
2000 V RMS Port-to-Port Optical Isolation
15 KV ESD Surge Protection
USB Port Powered or External Power
Supports USB 2.0 (Backward Compatible)
RS-422/485 Data Rates up to 921.6 kbps
LED’s to indicate data flow on RS-232 ports
High retention USB interface ensures a reliable connection
Removable terminal block on serial ports make wiring easy
Automatic Configuration on Windows 98, ME, 2000, XP,
and Vista
Functional Description
Connect RS-422 and RS-485 (2-Wire and 4-
Wire) devices to a USB port and gain 2000 V
RMS Isolation from voltage spikes and ground
loops. 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-422/485 interface. To connect
these devices to modern PCs and provide
protection from electrical transients, you need a
simple and reliable conversion solution. The
USOPTL4-2P and USOPTL4-4P offer this
solution and are great for any application that
requires long range or multi-drop capabilities.
Both models offer a high retention USB
interface, removable terminal blocks on the
serial side and have LED’s to indicate data
flow. Simply plug the converter into an
available USB port on your computer or USB
hub and install the drivers supplied on CD
ROM. The device will show up as additional
COM ports in the Windows Device Manager,
which are fully compatible with your Windows
applications. A one meter USB cable is
included.
Ordering Information
Model Number
USOPTL4-2P
USOPTL4-4P
Accessories
USBAMBM-3F
USBAMBM-6F
MDR-20-24
12DC1AST
3 ft (1 M) USB Cable (One Included)
2 m (6ft) USB Cable
DIN Rail Mount, 24 VDC, 1 A Power Supply
DC Power supply Unregulated 12VDC@1000mA
Description
Isolated USB to 2 Port RS-422/485 Converter
Isolated USB to 4 Port RS-422/485 Converter
PRODUCT INFORMATION
International Headquarters:
815-433-5100
www.bb-elec.com
European Headquarters:
+353 91 792444
www.bb-europe.com
B&B ELECTRONICS
USOPTL4-xP-3409ds - 2/2
©2009 B&B Electronics. All rights reserved
Specifications
RS-422/485 Connectors
Serial Technology
Removable Terminal Blocks
RS-422/485 Data Rate
921.6 kbps (Max)
Isolation
2000 V (Port-to-Port) Optical
Surge Protection
15 KV ESD
USB Technology
Connector
USB Type B Female, High Retention Withdrawal > 15 N
Standard
1.1 and 2.0 Compatible
Data Rate
12 Mbps
Power
Source
USB Port or External Source
Input Voltage
5 VDC from USB Port or 10 - 30 VDC External Power Supply
Consumption
Higher Power Device (>100 mA)
USOPTL4-2P: 3 Watts, External Power Supply
USOPTL4-4P: 5 Watts, External Power Supply
Software
Windows 98, ME, 2000, XP, Vista
Mechanical
6.5 x 1.2 x 3.1 in (16.4 x 3.0 x 8.0 cm) without Flanges
7.5 x 1.2 x 3.1 in (19.0 x 3.0 x 8.0 cm) with Flanges
2 Port 0.75 lbs (340.2 g), 4 Port 0.80 lbs (362.9 g)
Environmental
32 to 158 °F (0 to 70 °C)
-40 to 185 °F (-40 to 85 °C)
0 to 95 % (Non-condensing)
125224 hours
72749 hours
Parts Count Reliability Prediction
Regulatory
FCC, CE, UL
Terminal Board Layout
TB Position
1
2
3
4
Signal Name
TDA(-)
TDB(+)
RDA(-)
RDB(+)
Ground
Driver CD
Dimensions
Weight
Operating Temp
Storage Temp
Operating Humidity
MTBF (USOPTL4-2P)
MTFB (USOPTL4-4P)
MTBF Method
Approvals
PRODUCT INFORMATION
5
DIP Switch Legend
Position
1
2
3
4
OFF
RS-422
Echo ON
4-Wire
4-Wire
ON
RS-485
Echo OFF
2-Wire
2-Wire
Factory default = all switches off
International Headquarters:
815-433-5100
www.bb-elec.com
European Headquarters:
+353 91 792444
www.bb-europe.com
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