USB to Serial Adapter RS232 DB9
L:1.8m screw nut type
Converts one USB port to RS232.
RS-232 data & signals: TX, RX, RTS, CTS, DTR, DSR, DCD, RI, and GND.
Supports 300 to 128,000 baud (auto-sensing and self-adjusting)
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.
CE/FCC/RoHS.
5-year manufacturer's warranty.

SPECIFICATIONS

Compatibility: USB 2.0 (backward compatible) and EIA/TIA RS-232C standards

Power Source: Port power from USB port

Current Consumption: Less than 100mA

Output Power on Pin 3: About -9VDC

Baud Rates: 300 to 128,000bps (auto-sensing and self-adjusting)

Distance: USB side: 10ft (3m); RS-232 side: 16ft (5m)

Connectors: USB side: Type A Female; RS-232 side: DB-9 Male

LEDs: TX, RX and Power

Dimensions (H x W x D): 0.6 x 1.4 x 2.2 in (15 x 35 x 55 mm) (excluding cable)

Cable Length: 3.3ft (1m)

Weight: 2.6 oz (73 g)

Operating Temperature: 32ºF to 95ºF (0ºC to 35ºC)

Operating Humidity: Up to 90% RH (no condensation)

CONVERTER CONNECTOR PINOUTS USB Side USB Type A Connector (view from front) RS232 Side

Pin .. Function ... Description
1 ..... DCD ......... Data Carrier Detect
2 ..... RX ............ Receive Data
3 ..... TX ............ Transmit Data
4 ..... DTR .......... Data Terminal Ready
5 ..... GND ......... Ground (Signal)
6 ..... DSR .......... Data Set Ready
7 ..... RTS .......... Request to Send
8 ..... CTS .......... Clear to Send
9 ..... RI ............. Ring Indicator DB-9 Male (view from front)

DB-9 / DB-25 CONVERSION TABLE (DTE)
DB-9 Pin Assignment: 1 2 3 4 5 6 7 8 9
DB-25 Pin Assignment: 8 3 2 20 7 6 4 5 22
Function: DCD RX TX DTR GND DSR RTS CTS RI

TROUBLESHOOTING INSTRUCTIONS FOR USB TO RS232 CONVERTER 1) Driver installation 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). 2) Make sure the Power LED on USB-232-1 is lit up. 3) Loopback Test

* Connect pin 2 and 3 of the DB-9 connector (as shown above). * Run 232Analyzer FREE version software on your computer. * 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.

Screenshot: Send/receive commands from 232Analyzer software. 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.

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