P/N8170r1 TTLxUSB9M-0712ds page 1/3
©2008 B&B Electronics. All rights reserved
B&B ELECTRONICS
TTL5USB9M & TTL3USB9M
USB to TTL Mini-Converter
Connect 5 & 3.3V TTL 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
TTL Data rates up to 460.8 Kbps
Supports Windows 98, ME, 2000, XP, & Vista
Specifications
TTL
Level
Connector
Data Rate
Connector
Standard
Data Rate
Source
Input Voltage
Consumption
Serial Technology
TD, RD, CTS, RTS, GND
5V or 3.3V (See Ordering Information)
DB9 Male
Up to 460.8 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 (x32, x64)
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)
1981564 hours
1981564 hours
Parts Count Reliability Prediction
Regulatory
FCC, CE
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 TTL interface. To
connect these devices to modern PCs, you need a
simple and reliable conversion solution. The
TTL5USB9M and TTL3USB9M offer this solution in
a space saving, USB Port powered package. 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
Driver CD
Dimensions
Enclosure
Weight
Operating Temp
Storage Temp
Op Humidity
MTBF
TTL5USB9M
TTL3USB9M
MTBF Method
Approvals
Model Number
TTL5USB9M
TTL3USB9M
TTL5USB9M-LS
TTL3USB9M-LS
PRODUCT INFORMATION
an additional COM port in the Windows Device
Manager which is fully compatible with your
Windows applications. Choose the TTL5USB9M for
5V TTL and the TTL3USB9M for 3.3V TTL. Locked
serial number versions are also available (see the
driver installation notes at the end of this
document). A one meter USB cable is included.
Remember, when it comes to USB to Serial
Conversion, B&B Electronics Ulinx™ brand is your
number one choice.
Ordering Information
Description
USB to 5V TTL Mini-Converter
USB to 3.3V TTL Mini-Converter
USB to 5V TTL Mini-Converter (Locked Serial
Number)
USB to 3.3V TTL Mini-converter (Locked Serial
Number)
3 ft (1 M) USB Cable (One Included)
Accessories
USBAMBM-3F
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
P/N8170r1 TTLxUSB9M-0712ds page 2/3
©2008 B&B Electronics. All rights reserved
B&B ELECTRONICS
Package Contents
TTL5USB9M or TTL3USB9M to USB to TTL 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.
Select Install the software automatically and click
Next>
DB9 Pin-out
A warning concerning Windows logo testing will
be displayed. Click on Continue Anyway >
Pin
1
2
3
4
5
6
7
8
9
RS-232 Pin-out DB9 Male DTE
Direction Signal Name
----
Not Used
Input
RD (Receive Data)
Output
TD (Transmit Data)
----
Not Used
N/A
SG (Signal Ground)
----
Not Used
Output
RTS (Request to Send)
Input
CTS (Clear to Send)
----
Not Used
Driver Installation
Screen shots are from Windows XP
PRODUCT INFORMATION
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.
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
P/N8170r1 TTLxUSB9M-0712ds page 3/3
©2008 B&B Electronics. All rights reserved
B&B ELECTRONICS
Check Drivers
Screen shots are from Windows XP
Right click on My Computer. Select the Hardware
tab.
Loop Back Test
Loop back pins 2 and 3 on the DB9 M connector.
Expand the Ports (COM & LPT) tree. The USB
Serial Port will be listed as the next available
COM Port.
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.
Installation Notes
PRODUCT INFORMATION
Expand the USB Controllers tree. The USB Serial
Converter will be listed.
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 are shared.
SERIALIZED – 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.
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
Mouser Electronics
Authorized Distributor
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