User manual

5
4 Description of the device
4.1 Keys and operators
VarioPro does not require its own on/off switch and is powered from the PC or from
the mains. As soon as VarioPro receives power it switches itself on and emits a
corresponding tone.
On the front are the Braille cells – 64 with VarioPro 64, and 80 with VarioPro 80.
Above each cell is a cursor routing- or positioning-key.
On both the left and right of the Braille cells are three small round keys, known as
Display keys. On the left they are numbered D1 to D3 from top to bottom, and on the
right D4 to D6 from top to bottom (cf the numbering of the Braille dots) and can be
pressed individually or in combinations.
On the front edge there are wide cylindrical ‘Rollbars’ (three with VarioPro 64 and
four with VarioPro 80). They are easy to use with the thumb and allow upward and
downward movement with perceptible and quiet switching movements.
The functions of the operators vary according to the screen reader used (Virgo,
Blindows, Window Eyes, JAWS or other screen readers).