Studio Technologies 55 1996 - Manual (Page 15)

Model 55/56 User Guide Issue 3, December 1996
Studio Technologies, Inc. Page 15
when using long cable runs. Refer to the
Technical Notes section for additional
information.
The simplest installation would use a
microphone cable to connect the Model 55
to the first talent amplifier; the loop through
connector on that talent amp sending the
signal on to the next talent amp.
For convenience, you may want to wire
your facility to allow easy access to the
talent amplifier signal at all locations
where talent amplifiers might be used. The
talent amplifiers connect to the Model 55
in parallel, so the connectors on the distri-
bution panels or mult boxes must be wired
in parallel.
Warning: Do not connect the Model
55’s talent amplifier output to anything
but Studio Technologies’ talent amplifi-
ers. Some audio equipment may be
damaged by the +23Vdc contained on
pin 2 of the talent amplifier output
connector.
Several mounting options are available for
the Model 35 and 38 Talent Amplifiers. For
details refer to Mounting Options in this
section.
In special cases you may need to obtain
a stereo, balanced line level output signal
from the Model 55 talent amplifier output.
The Model 70 Interface is available for this
purpose. For details refer to the end of this
section.
Locating the Model 56 Control Console
The Model 56 was designed for desktop
use, however provision has also been
made for microphone-stand mounting.
For details refer to Mounting Options in
this section.
Connecting the Model 55 to the
Model 56
A standard 5-conductor MIDI-style cable
is used to connect the Model 55 to the
Model 56; a cable is included with your
system. Just connect the cable between
the female 5-pin DIN-type connectors on
the back of the Model 55 and 56, and
you’re done.
Note: If you require a longer cable, be
certain to buy a MIDI cable that has all 5
pins wired. If they aren’t all connected, the
Model 56 will not operate. This is because
the Model 55 powers the Model 56 with
the pins that aren’t used for MIDI data.
For best performance, the cable that
connects the Model 55 with the Model 56
should be limited to 50 feet (15.3m).
Should you need to exceed this length,
refer to the Technical Notes section of
this guide for details on the cable
requirements.
For more information on MIDI, and using
controllers other than the Model 56, please
refer to Appendix A.
AC Mains Power
The Model 55 is internally configured to
operate from either 100, 120, or 220/240V,
50/60Hz. In most cases, units shipped to
North America are factory selected for
120V operation. Units bound for Japan are
selected for 100V, while our friends “down
under” and in Europe receive units set for
220/240V. Before connecting the Model 55
to mains power, check that it is configured
to match the local mains voltage. Look on
the back panel, adjacent to the power
entry connector, for the configured
voltage(s). Note than an incorrect configu-
ration could seriously damage the unit.
Should it be necessary to change the