Studio Technologies 591 - Manual (Page 8)

Model 58/591 User Guide Issue 1, September 1999
Studio Technologies, Inc. Page 11
remote level control input was provided
specifically to allow a producer, director,
or other “big cheese” to have their own
level control for use when previewing
audio or video work-in-process.
Note that software “smarts” in the Model
591 Control Console inhibits the use of the
remote level control any time the operator
selects the reference output level. This
ensures that the calibrated monitor level
won’t accidentally be changed by some
maroon. This, along with the remote activ-
ity LED indicator on the Model 591, keeps
the remote level control from doing more
harm than good.
Bypass
The bypass function was expressly pro-
vided so that additional monitoring capabil-
ity can be added to a facility while main-
taining compatibility with existing stereo
monitoring systems. The bypass signal
source would normally be the stereo
monitor output of an audio console. During
Model 58/Model 591 operation, the moni-
tor outputs are connected, via electrome-
chanical relays, to the Model 58’s output
circuitry. When the bypass function is
enabled, the monitor outputs disconnect
from the Model 58’s output circuitry, con-
necting instead to the bypass inputs.
Activation of the bypass function can be
by means of a button on the Model 591
Control Console, or remotely using a
signal connected to contact input 1.
Installation
In this section you will be installing the
Model 58 Central Controller in an equip-
ment rack. Audio input, insert, and output
connections will be made. A location will
be selected for the Model 591 Control
Console, and it will be connected to the
Model 58. If required, external equipment
will be interfaced with the remote control
inputs. AC mains power will be connected
to the Model 58.
System Components
The shipping carton contains one each of
the following: Model 58 Central Controller,
Model 591 Control Console, 20-foot
(6.1m) 9-pin D-subminiature interconnect-
ing cable, User Guide, and warranty card.
Units destined for North America also
include an AC mains cord. Your dealer or
distributor will provide an AC mains cord
for non-North American destination.
Mounting the Model 58
Central Controller
The Model 58 Central Controller requires
one space in a standard 19-inch (48.3cm)
equipment rack. Select a location that is
convenient to both the analog audio sig-
nals and the Model 591 Control Console.
A 20-foot (6.1m) cable is supplied to
connect the Model 58 to the Model 591.
You can supply your own interconnecting
cable, however 50 feet (15.3m) is the
recommended maximum length. Secure
the Model 58 in the equipment rack using
two mounting screws per side.
Audio Connections
Audio signal connections are made by way
of three 25-pin D-sub connectors, located
on the Model 58’s back panel. Three cable
harnesses, each with a 25-pin D-sub plug
(male) on one end and the desired con-
nectors on the other end, are necessary.
These cable harnesses are not supplied