SmartView Multiscreen
Installation and Use
Page 36
4.8 Cascade query code
The SmartView Multiscreens use a special ‘query code’ to detect whether or not they
are connected to another SmartView Multiscreen. By default your SmartView
Multiscreen uses query code AD. SmartView Pro (another range of keyboard /
mouse / video switches from Adder Technology) units with firmware versions less
than 1.09 used query code EF. This was found to conflict with a small number of
other (rare) devices that used the same query code so an alternative query code
was provided to ensure compatibility. Either query code may be used but you should
make sure that all cascaded SmartView Multiscreen and SmartView Pro units are
set to use the same query code. If any of the cascaded SmartView Pros have
firmware versions less than 1.09 then the cascade query code for all the SmartView
Multiscreens and SmartViews should be set to EF.
L7
– Cascade query code = AD (default)
L8 – Cascade query code = EF
4.9 Resolving slow mouse problems
Due to certain technical reasons some systems running particular combinations of
operating system and mouse drivers are sensitive to small timing changes relating to
mouse communications. The introduction of a switch like the SmartView inevitably
causes some timing changes and in rare cases interactions have been observed
that causes the mouse to run very slowly. Certain HP Vectra computers running
later versions of Windows NT with Logitech mouse drivers and Logitech mice have
been observed to exhibit such interactions with older switches. One solution to this
problem is to change the mouse driver.
The SmartView Multiscreen is a high performance device that is carefully
engineered to minimise such interactions and should not exhibit this characteristic.
Nevertheless such interactions are unpredictable and so the SmartView is fitted with
a feature that ensures that the mouse can never operate at a very slow rate
regardless of such interactions. This feature is activated using the following options:
L5
– Allow the mouse to run at any speed (default)
L6 – Don't allow the mouse to run at very slow speeds
