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INTRODUCTION (USB TO
RS232 ADAPTER CONVERTER CABLE)
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(Windows 7
supported!)
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The
USB-232-1 is a port-powered, bi-directional USB to RS232 adapter
(cable) that can
be used to convert any standard USB port (USB 2.0 - backward
compatible) into a RS232C port and vice versa.
This
high-quality, high-performance USB to RS232 adapter
uses the latest FTDI chipset and is fully
compatible with Windows 7/Vista/XP/Server2008/ Server2003/2000/98
(32-bit), Windows 7/Vista/XP/ Server2008/Server2003 (64-bit), Win CE, Mac, and Linux.
The unit comes
with a USB type A female connector on the USB side and a DB9
male connector on the RS232 side.
It is backed by our 30-day risk-free money-back guarantee
and 5-year replacement warranty.
Baud rates: 300 to 128K Baud.
user manual | 
download drivers |
FAQs |
product selection guide
 testing
info |
 declaration
of conformity
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PRODUCT PHOTO (USB RS232
ADAPTER)
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FEATURES (USB TO RS232 CONVERTER)
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- Adds
one RS-232 port to your USB port.
- 300 to 128K Baud operation (auto-sensing and
self-adjusting).
- RS-232 data & signals: TX, RX, RTS, CTS, DTR,
DSR, DCD, RI, and GND.
- Supports
Windows 7/Vista/XP/Server2008/Server2003/2000/98
(32-bit), Windows
7/Vista/XP/Server2008/Server2003 (64-bit), Win CE, Mac, and Linux.
- Supports remote wakeup and power management.
- Plug and play (hot-pluggable, data format
auto-sensing and self-adjusting).
- Port-powered, no external power required.
- No IRQs required, no IRQ conflicts.
- Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
- Safety: Strictly certified by SGS (Cert No. EM/2008/20060C; EM/2008/20061C).
- 5-year
manufacturer's warranty. |
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SPECIFICATIONS (USB TO RS232
CABLE)
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Part Number:
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USB-232-1 |
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Compatibility: |
USB 2.0
(backward compatible) and EIA/TIA RS-232C standards |
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Power Source: |
Port power from USB port |
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Current
Consumption: |
Less than
100mA |
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Output Power on Pin 3: |
About -9VDC |
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Baud
Rates: |
300 to 128,000bps (auto-sensing and
self-adjusting) |
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Distance: |
USB side:
10ft (3m); RS-232 side: 16ft (5m) |
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Connectors: |
USB side:
Type A Female; RS-232 side: DB-9 Male |
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LEDs: |
TX, RX and
Power |
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Dimensions (H x W x D): |
0.6 x 1.4 x 2.2 in (15 x 35 x 55 mm) (excluding
cable) |
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Cable Length: |
3.3ft (1m) |
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Weight: |
2.6 oz (73 g) |
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Operating Temperature: |
32ºF to 95ºF
(0ºC to 35ºC) |
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Operating Humidity: |
Up to 90% RH (no condensation) |
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CONVERTER CONNECTOR PINOUTS
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USB
Side |
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USB
Type A Connector (view from front) |
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RS232 Side |
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Pin |
Function |
Description |
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1 |
DCD |
Data Carrier Detect |
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2 |
RX |
Receive Data |
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3 |
TX |
Transmit Data |
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4 |
DTR |
Data Terminal Ready |
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5 |
GND |
Ground (Signal) |
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6 |
DSR |
Data Set Ready |
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7 |
RTS |
Request to Send |
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8 |
CTS |
Clear to Send |
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9 |
RI |
Ring Indicator |
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DB-9 Male (view from front) |
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DB-9
/ DB-25 CONVERSION TABLE (DTE) |
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DB-9 Pin Assignment: |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
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DB-25 Pin Assignment: |
8 |
3 |
2 |
20 |
7 |
6 |
4 |
5 |
22 |
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Function: |
DCD |
RX |
TX |
DTR |
GND |
DSR |
RTS |
CTS |
RI |
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TROUBLESHOOTING INSTRUCTIONS
FOR USB TO RS232 CONVERTER
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1) Driver installation |
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Make sure
that the USB-232-1 is connected to your USB port, and the
driver is installed correctly (as shown above); otherwise, please
reinstall the driver (refer to user
manual for details). |
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2)
Make
sure the “Power” LED on USB-232-1 is lit up. |
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3) Loopback Test |
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Connect pin 2 and 3 of the DB-9 connector (as shown above).
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Run 232Analyzer
FREE version software on your computer.
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Select "ASCII" for both the Send and Receive data
formats. Then send command and/or string such as
"CommFront" from the 232Analyzer software. You should
receive an echo of the command/string sent
("CommFront"). By performing a simple loopback test like
this, you can test both the transmitter and receiver of
the converter. This is very helpful when you are in
doubt about the performance of your converter.
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Screenshot: Send/receive
commands from 232Analyzer software. |
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232Analyzer is an advanced RS232 Serial Protocol Analyzer
software
that allows you to control, monitor and analyze serial port
(RS232 / RS485 / RS422 / TTL, etc.) activities.
Not just the data,
it also allows you to monitor or change RS-232's line
states: RTS, CTS, DTR, DSR, DCD, and RI.
The FREE version (no time
limitation) can be downloaded from
here.
TECH NOTES
RS-232: 3 easy steps to understand and control
your RS232 devices
RS-485/RS422:
Building a reliable RS485/RS422 network |
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