Studio Technologies 5132 2012 - Manual (Page 5)

Model 5132 User Guide Issue 4, September 2012
Studio Technologies, Inc. Page 5
Model 5132
Party-Line Interface Module
Introduction
The Model 5132 Party-Line Interface Mod-
ule is a compact, self-contained unit for
use in custom broadcast, live-performance,
and general party-line intercom applica-
tions. The module provides a high-quality
2-channel party-line to analog line-level
(“4-wire”) audio signal interface in an easy
to use yet technically sophisticated pack-
age. The module’s basic functions include
two channels of 2-wire-to-4-wire conversion
with auto-null capability, input and output
level metering, a +28 volt DC party-line
power source with two channels of 200 ohm
intercom audio termination, and DC out-
put control and status monitoring. With the
internal party-line power source enabled,
beltpack user devices can be directly con-
nected. Alternately, the Model 5132 can be
connected into an existing party-line system
that includes a power source and intercom
audio terminations. Two analog inputs and
two analog outputs interface the Model
5132 with a variety of external audio trans-
port, matrix intercom, and infrastructure
equipment. Module operation requires only
an externally-provided source of 12 volts
DC. Advanced features include remote con-
trol and monitoring capability when installed
with remote access modules available from
Studio Technologies.
Applications for the Model 5132 include
sports broadcasting booth packages,
remote news gathering “fly packs,” stadium
audio/video interface (I/O) locations, and
government/corporate/performance space/
aerospace test infrastructure projects. The
number of Model 5132 modules used in a
project can vary widely—from one to doz-
ens. And in each case the performance will
be completely “pro” with audio quality, reli-
ability, and installation flexibility matching
that of larger-scale products. Typical ap-
plications will find the Model 5132’s 4-wire
audio inputs and outputs being interfaced
with fiber-optical transport modules, matrix
intercom systems, and audio/video routers.
The flexibility of the Model 5132’s party-
line intercom interface allows direct con-
nection to either intercom beltpack devices
or an existing party-line intercom system.
The Model 5132 provides a full-featured
2-channel interface which includes two
2-wire-to-4-wire hybrid circuits with auto-
matic nulling capability. The analog hybrid
circuitry provides excellent audio quality
and high return-loss. Audio level meters
provide confirmation of system perfor-
mance during setup and operation. The
Model 5132’s party-line interface is acces-
sible using a 3-pin male XLR connector.
This allows industry-standard party-line
Figure 1. Model 5132S Party-Line Interface Module Front and Back Views