Usb Communication; Usb Communication By Com - Denso BHT-904BB User Manual

BHT-904BB

5.3 USB Communication

The BHT can communicate with the host computer via the USB communication port.
The Connection method "COM" and "MTP" are available for the BHT USB communication.
"COM" is for the serial communication, and "MTP" is for the file transfer to the host computer without the device driver.
5.3.1

USB communication by COM

1.
Install the Active USB-COM port driver in the host computer.
* The Active USB-COM port driver can be downloaded from the QBdirect service
(http://www.qbdirect.net/).
* Even though our USB device (e.g., CU, scanner) has been used, the Active USB-COM port driver has
been installed, and the USB port has been allocated as a COM port, the USB port is not recognized as a
COM port even by connecting the BHT-900 to the port.
To use the BHT-900 for COM connection, carry out the following steps in the order:
(1) Remove all of our USB devices from the host computer.
(2) Execute the Setup file of the Active USB-COM port driver.
(3) Connect the BHT-900 to an arbitrary USB port.
(4) Install the USB driver.
The COM port is now allocated to the USB port.
For the procedures for installing the Active USB-COM port driver, refer to the driver's installation guide.
2.
Set the BHT USB connection mode to COM. For details, refer to "4.5.10 USB Communication
settings.
3.
Set the BHT USB communication protocol options. For details, refer to "4.5.6.[5] Setting the
communication environment".
4.
Connect the host computer to the BHT using a USB cable.
* Use a USB2.0 compatible mini-B cable, sold separately.
5.
The device is detected and the installation of the Active USB-COM port driver is now complete.
Check the COM number using the device manager, etc. Even though our products have been
− Point −
used and the BHT is connected to the same port, the COM port number may be different.
It may happen that communication is impossible, depending on the destination or cable.
Connect the BHT to the USB port on the main body of the host computer.
If a connection is made via the hub, proper communication may not occur.
Do not unplug and plug in the USB cable repeatedly in a short period of time. Doing so may result
in the host computer being locked.
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