User`s manual

USB-3000™
User’s Manual Version 1.6a
Section 2 – Installation
Digital Voice Systems, Inc.
The Speech Compression Specialists
Figure 32 USB-3000™ drivers are installed
After both drivers are installed, it is important to determine which COM port has been assigned to the device.
To do this either make note of the COM Port in the displayed window for when windows Vista finishes
installation of the USB-3000 USB driver or use Windows Device Manager. To open Windows Device Manager
Click “Start”, click “Run”, and then type "devmgmt.msc" (without the quotation marks). Alternatively, open the
Device Manager (located in "Control Panel\System" then select the "Hardware" tab and click "Device Manger")
and select "View > Devices by Type", the USB-3000 USB device should appear under Ports (COM & LPT)" as
USB-3000 USB (COMXX) where “XX” is the port number of the USB interface.
2.6. USB COM rate settings
The serial interface supports asynchronous communication of both speech data and channel data using the
standard non-return-to-zero (NRZ) format. The UART data interface uses a packet structure that is detailed in
the AMBE-3000™ Vocoder Chip User’s Manual.
Each serial word transmitted or received uses 8 data bits, no parity bits, and one stop bit. The serial port
operates at baud rates from 28800 up to 460,800 baud. See Table 1 UART Baud Rates for available rates.
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