Quantum Composers 9730 Series - Manual (Page 31)

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USB Interface Overview
The USB interface is standard on the 9730. Before this type of communication can be
used, the appropriate drivers must be installed on the personal computer. These
drivers are included on the disc that was shipped with your unit. Please contact
Quantum Composers or visit
www.quantumcomposers.com for updated installation files
and instructions.
USB communication is achieved by using a mapped (virtual) COM port on your
computer. The driver installation executable will obtain an unused COM port number,
install the USB drivers, and make that COM port number available for typical RS232
communication to the pulse generator. HyperTerminal or other common software may
be used.
When communicating through the mapped COM port over USB, the baud rate for the
communication port used by the USB chip must match the baud rate for the COM port
of your computer. The USB baud rate is set at 38400.
USB communication notes:

The correct drivers must be installed on your computer before communication
can be accomplished via USB.

The BAUD rate on your computer must be set to 38400 for successful
communication.

USB 1.0 specification is used. The USB cable can be removed without
“unplugging” the device in the operating system environment.