Usb-Com Interface - Denso AT30Q-SM User Manual

9.2 USB-COM Interface

This scanner is compliant with USB 1.1 (Universal Serial Bus Specification Revision 1.1).
Installing the dedicated Active USB-COM port driver to the host computer allows the USB-COM interface to operate in
communications applications using the conventional serial port.
Note: Entering data transferred from the scanner via the USB-COM interface directly to application (e.g., Access, Excel, and
Internet Explorer) running on the host computer requires the keyboard interface software(QR_kbif)*. As shown below, the
QR_kbif converts the data read into the keying format and passes it to applications in the manner as if it is coming from the
keyboard. It is, therefore, possible for applications capable of accepting keyed data to handle the data read by the scanner.
Registered users can download the keyboard interface software (QR_kbif) from QBdirect, their customer support section on
the Denso Wave website at no extra charge.
http://www.qbdirect.net
Key board
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Notes for use
In such a case, reboot the host computer, open the Device Manager, and check the COM port number actually assigned by
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OS before use.
If you want to use two or more communications processors (software) or scanners concurrently on your computer, be sure
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to assign a unique COM port number to each of them.
If the host computer switches to the suspend mode when any communications software is running and recovers from that
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suspend mode, the software may freeze in some computers. Quit and restart the software.
It is not necessary to make settings such as transmission speed, data bits, parity, and stop bits (which are required for
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communications software using a conventional serial port) since the USB interface ignores those settings. The flow control
should be set to "Hardware (RTS/CTS)" or "None."
The virtual COM port on the computer and the scanner are connected with each other as shown below.
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Physical device
Keyboard Interface
Software (QR_kbif)
Scanner
Host computer
TxD
RxD
RTS
CTS
DTR
DSR
DCD
Key input
data
Scanner
RxD
TxD
CTS
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Application
Access, Excel,
Internet Explorer,
etc.