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USB-RS232 Converter
USB-RS422/485 Converter
User's Manual
(M 981 224/ 02A )
(c) CIRCUTOR S.A.
INDEX
1.- INFORMATION .........................................................................3
2.- INSTALLATION.........................................................................5
3.- REMOVE DRIVER SOFTWARE...............................................8
4.- TECHNICAL AND OPERATIONAL DESCRIPTION.................9
5.- SPECIFICATIONS...................................................................11
6.- NOTES....................................................................................11
FCC COMPLIANCE STATEMENT
This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communication.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the
interference at his own expense.
USB-RS232 Converter
MACHINE TYPE FUNCTION
USB-RS232
1.- Information
USB-RS422/485 Converter
MACHINE TYPE FUNCTION
USB-RS422/485
Standard Package
Main Unit
(USB-RS232)
Main Unit
(USB-RS422/485)
Driver disk User’s manual in PDF
USB Cable
2.- Installation
B232 Series
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Driver software installation
1. Connect USB-RS232/422/485 converter into the USB port of your
computer first.
2. Under Windows 98/2000/Me/XP, put disk drivers into the floppy disk
driver, it will automatically install the USB-RS232/422/485 driver software
into your computer by following the steps as below:
3. This wizard searches for new drivers for USB Device
4. What do you want Windows to do?
5. Select Searching locations for new driver
6. Windows is now ready to install the best driver
7. Windows has finished installing the software
8. Make sure if the driver software installation is finished
Connect converter into the USB port of the computer and then Click
"Start" ->"Settings" -> "Control Panel" -> "System" ->"Device Manager" to
see if there are "CIRCUTOR USB-RS232/422/485 (COMX)" at Ports and
"CIRCUTOR USB-RS232/422/485" at Universal Serial Bus controllers.
3.- Remove driver software
How to remove USB-RS232/422/485 driver software from your
computer
1. Put driver disk into the floppy disk driver of the computer and then find
and execute Uninstall.exe by following the steps as below:
2. Execute Uninstall.exe
3. Confirm to execute Remove program
4. Re-boot the Computer after remove program is done
4.- Technical and operational description
Front panel of USB-RS232
Front panel of USB-RS422/485
Remark: One USB-RS485 converter can be used for
connecting two unit of RS-485 devices.
Operation of USB-RS232/422/485 converters
9 RS232/422/485: Connecting with the terminal device, which is equipped
with RS-232/422/485 interface.
9 USB: Connecting with the computer USB port or Hub.
9 LINK: LINK LED turns on when the USB-RS232/422/485 unit is ready for
use.
9 TX: TX LED turns on when the data is sending from USB port to RS-
232/422/485 device.
9 RX: RX LED turns on when the data is sending from RS-232/422/485
device to USB port.
RS-232 PIN FUNCTION
PIN No. I/O DESCRIPTION
1 I Data carrier detect
2 I Received data
3 O Transmitted data
4 O Data terminal ready
5 X Signal ground
6 I Data carrier
7 O Request to send
8 I Clear to send
9 I Positive dc TEST
RS-422 PIN FUNCTION
RS-485 PIN FUNCTION
PIN DESCRIPTION
- RS-422 Tx -Tx
+ RS-422 Tx +
- RS-422 Rx -Rx
+ RS-422 Rx +
PIN DESCRIPTION
ODEMA2
- RS-485 -1
+ RS-485 +
- RS-485 -2
+ RS-485 +
5.- Specifications
USB Interface
Full compliance with the USB specification v1.1
RS-232 Interface
RS-232, Full, 8N1, max 120 Kbps
Dimensions
D 18.8 x W 35 x H 56 mm
Mounting
Any surface
Environment
Operating temperature: 0 ~ 55 ºC
Storage temperature: -10 ~ 55 ºC
Humidity: 10% ~ 90% relative
6.- Notes
- Do not disconnect the converter during running your application program
to avoid any unexpected problem.
- USB-RS232/422/485 driver software provides maximum 8 converters to be
used for multiple device communication. The addresses of the multiple
devices are according to the serial port addresses of the PC or the
addresses of the port HUB USB where the devices are connected.
- The converter does not work with DOS system. Only Win98/2000/Me
support USB.
- You must connect the converter into the USB port of your computer
before you start driver software installation.
- After the converter is connected into USB port of the computer which is
with the driver software installed, LINK LED will turn on to be ready for
use, otherwise unplug the converter and try again after 5 seconds or
longer.
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