Studio Technologies 55 1996 User Manual
Page 13

Model 55/56 User Guide
Issue 3, December 1996
Studio Technologies, Inc.
Page 13
the Model 56 Control Console, and it will
be connected to the Model 55. AC mains
power will be connected to the Model 55.
System Components
The main StudioComm shipping carton
contains a Model 55 Central Controller,
Model 56 Control Console, 5-conductor
MIDI-style cable, User Guide, and war-
ranty card. Units destined for North
America are shipped with an AC mains
cord. Your dealer or distributor will provide
an AC mains cord for non-North American
destinations. Model 35 and Model 38
Talent Amplifiers, along with accessories,
will be contained in separate cartons.
Please check to ensure you have every-
thing you need.
Mounting the Model 55
The Model 55 requires one space in a
standard 19-inch (48.3cm) equipment
rack. Select a location near where the
Model 56 Control Console will be located.
A cable is provided to connect the Model
55 to the Model 56. You can supply a
longer cable, however 50 feet (15.3m) is
the recommended maximum length. It is
desirable to locate the Model 55 to allow
easy access to both the front and the back
panels. The back panel contains all of
the input and output connectors, while
the front panel contains several LED
indicators. The Model 55 is secured to
the equipment rack using two mounting
screws per side.
Audio Inputs and Outputs
The Model 55’s line-level audio input and
output connections are made using ¼-inch
3-conductor phone jacks. Don’t be con-
cerned about our use of phone jacks as
part of a “professional” product. The jacks
used are manufactured by Neutrik, and
feature gold-plated contacts for high reli-
ability.
Caution: For reliable audio intercon-
nection, the plugs you use must comply
with industry standard RS-453.
Switchcraft No. 297, Neutrik NP3C, or
equivalent will work correctly. Refer to
the Technical Notes section for details.
Stereo Line Inputs
The Model 55 provides four stereo line-
level inputs. Each input is electronically
balanced, and can be configured for com-
patibility with –10dBV or +4dBu signal
levels. The Model 56 Control Console
gives you push-button control, so you can
easily change input sensitivities at any
time (refer to the Configuration section
under Input Sensitivity). Monaural sources
should be connected to the left (L) input
and configured for mono operation (refer
to the Configuration section under Stereo/
Mono Input).
Prepare the mating connectors (plugs)
so that tip is signal high (+ or hot), ring is
low (– or cold), and sleeve is shield. With
an unbalanced source connect the tip to
Balanced Connection
(Input & Output)
Sleeve
(Shield)
(Switchcraft No. 297, Neutrik NP3C, or equivalent)
Tip ( + )
Ring (–)