converts second 8 channels of a Microstar card analog 0-10 vdc
to DMX; compliant with USITT DMX 512 1190 protocol
Size: 1.50” H X 3.00” L (mounts in IIe AUX slot)
Board connectors: micro screw terminals for analog input
and DMX output
Microstar interface: DB 25 male/female connector (plugs
into Microstar rear panel DB 25 connector)
DMX ouput: standard 5-pin female XLR on pigtail cable
Power: 12 vdc from IIe internal video connector
Analog input: absolute maximum 10 vdc (over 10 vdc will
set DMX outputs to zero)
Indicators: Red LED for 12 vdc power Green LED for .25
vdc or greater analog input
Warranty: one year parts, labor, and return shipping
Custom versions available with more channels or adding DMX
ouput to existing analog controllers, etc.
Ideas would like to introduce you to a simple, reliable, and
cost-effective addition to either
your existing analog control console or a Microstar memory
system -- digital control for the latest moving lights and color
Practical moving lights and accessories were introduced around
1986. They operated on analog
0-10vdc control systems just like your Microstar.
As with control consoles and dimmers, eventually most
manufacturers moved to using some form of digital control which
then left users of existing analog systems unable to use the
latest moving lights and accessories.
Just as Microstar has enables you to have memory control of your
existing analog dimming system, dmx8 is an interface that
enables your present analog console or Microstar computer to
control the latest standard DMX (Digital Multiplex) moving
lights and accessories.
While the only moving lights or automated fixtures really
suitable (or quiet enough) for theatrical use cost several
thousand dollars each, there are two “accessories” which can
provide great creative benefit at reasonable cost--the moving
mirror attachment for ellipsoidal, Fresnel, or PAR cans, and the
Imagine needing 12 “specials” in your next show. Normally this
means hanging 12 separate instruments and using 12 dimmers and
control channels, assuming you have all this to spare! One
moving mirror attached to an existing instrument can do the same
job (if the 12 specials are only used one at a time).
Dimmer Ideas has found that Rosco’s I-CUE moving mirror
attachment works extremely well in this application. It is
totally silent and very accurate, using only 2 channels of
control for the pan and tilt functions. Its only drawback is a
cost of about $650 including the required power supply. Because
I-CUE uses the DMX-512 digital control protocol of newer
lighting consoles, you will need our dmx8 interface for your
Microstar memory control system.
Example number two is the color scroller which also attaches to
the front of most lighting instruments and allows you to change
the gel to one of 11-16 colors at any time. A pair of color
scrollers can add much flexibility to any production by
providing changeable color washes. These also use the DMX-512
protocol, and while somewhat expensive at around $400 each and
then another $400-$500 for a
power supply (also I-CUE compatible), they can take the place of
several conventional fixtures needed to accomplish the same
task. The 8-channel dmx8 interface will put both I-CUE and
scrollers under Microstar control!
For further information on I-CUE, visit:
For further information on color scrollers, visit:
There are many other brands and types of DMX devices
available--the above examples
are two that are useful in almost every production.
For current Microstar users, our dmx8 interface board mounts
inside the Apple IIe and gets its power internally so no extra
power supplies are needed and all expansion slots are still
available. The dmx8 cable adapter is then plugged in between a
Microstar card’s DB-25 rear panel connector and the dimmer
control cable. The DMX output cable is routed out the rear of
the computer; installation is now
complete and you are ready to connect I-CUEs, color scrollers,
or other DMX devices!
The price of the
dmx8 for Microstar with one year warranty is $195.00
For retrofit into your current analog console, the dmx8 can be
supplied as a
“stand-alone” external box. Pricing depends on types of
required for interfacing with your present console.
PHONE: (580) 536-0559
FAX: (580) 536-0552