Vaisala DPT145 - Manual (Page 31)

Chapter 5 _________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 31
Serial Communication
Connecting to the Serial Interface
DPT145 can be connected to a PC using the RS-485 line on
Port II. It is recommended that you use the USB service cable (Vaisala
order code 219690) for the connection, since the cable also provides the
operating power from the USB port.
If you have not used the USB service cable before, install the driver that
came with the cable. Refer to section Installing the Driver for the USB
Service Cable below for detailed instructions.
Installing the Driver for the USB Service Cable
Before taking the USB service cable into use, you must install the
provided USB driver on your PC. When installing the driver, you must
acknowledge any security prompts that may appear. The driver is
compatible with Windows 2000, Windows XP, Windows Server 2003,
and Windows Vista.
1. Check that the USB service cable is not connected. Disconnect the
cable if you have already connected it.
2. Insert the media that came with the cable, or download the driver
from www.vaisala.com .
3. Execute the USB driver installation program (setup.exe), and
accept the installation defaults. The installation of the driver may
take several minutes.
4. After the driver has been installed, connect the USB service cable
to a USB port on your PC. Windows will detect the new device,
and use the driver automatically.
5. The installation has reserved a COM port for the cable. Verify the
port number, and the status of the cable, using the Vaisala USB
Instrument Finder program that has been installed in the
Windows Start menu.
Windows will recognize each individual cable as a different device, and
reserve a new COM port. Remember to use the correct port in the
settings of your terminal program.
There is no reason to uninstall the driver for normal use. However, if you
wish to remove the driver files and all Vaisala USB cable devices, you
can do so by uninstalling the entry for Vaisala USB Instrument Driver
from the Add or Remove Programs (Programs and Features in
Windows Vista, or later) in the Windows Control Panel.