User manual

15
6 Installation and connection
6.1 Connection types
Depending on the operating system used VarioPro can be connected to a variety of
communication channels/ports.
6.1.1 Serial connection
Before connecting, make sure that the power supply to the computer is switched off.
Operating system:
- Windows 2000/XP
VarioPro can be connected to one of the serial ports COM1 to COM4 with the cable
supplied.
One end of the serial cable has a 9-pole so-called SUB-D plug which plugs into the
serial port on the PC. It has the same trapezoidal shape as the port itself to avoid any
confusion. Make sure that the power supply is cut off before plugging it in.
The other end of the cable has a 3-pole round plug, similar to that found on
headphones. This end goes into the left-hand round serial socket in the recess at the
back of the device on the right.
To provide power to the Braille display plug in the mains adapter. Insert the adapter
cable plug into the right-hand socket in the recess at the back of the device on the
right, and plug the other end into a mains outlet.
If your computer (Notebook) has Power Management we recommend that it be
switched off in BIOS and/or Windows, otherwise communication problems between
VarioPro and the computer may arise.
6.1.2 USB port
Operating system:
- Windows 2000/XP
The widely-used USB port, now present on every PC and Notebook, has almost
completely superseded the serial port. The main advantages of USB are its plug-and-
play facility and its speed. USB devices may be plugged into, and unplugged from
active devices without fear of damage. A live screen reader may not necessarily
continue to drive a Braille display, however, without being restarted.