[SML] Source 4 Power and LED Cabling

[Wayne Rasmussen]

My school is in the process of constructing a new classroom building.  It
will have a space capable of holding 150 or so that will occasionally be
used for a speaker/small panel.  We'd like to install several S4 LED as
performance lighting.  I'm not very familiar with the guts of how lighting
is installed...

1. How many units can be powered on a single 20 amp circuit?
2. I've been told some relays will be necessary to turn the units
completely off when not being used, rather than simply turning them down
to zero.  True?
3. Since the power cables may be somewhat near to the DMX at certain
points other than at their terminations, is there some shielded DMX we
should use?  Installers in this building will not have any experience with
DMX cable and we will need to be specific about what to use and how to use
it.
4. Are there wall panels that will be able to run these S4 with some
simple programs?  We'd also like the capability to plug in a board to run
the lights.

Thanks,
Wayne Rasmussen
Blair Academy