Manual

Model 348 User Guide Issue 1, January 2020
Studio Technologies, Inc. Page 5
MODEL 348
INTERCOM STATION
Introduction
The Model 348 Intercom Station provides
eight independent talk and listen channels
that are compatible with Dante® audio-over-
Ethernet networks. The desktop unit is de-
signed to serve as an audio control center for
production and support personnel in numer-
ous applications including on-air television
sports and news broadcasting, live events,
theater, industrial, and corporate AV. The
Model 348’s channels can be part of virtual
“party-lines” created with other compatible
devices or be used directly in point-to-point
intercom implementations. The range of
resources makes it simple to use the Model
348 locally, or as part of a REMI or “At-Home”
geographically diverse implementation. In
addition to intercom applications, the unit can
create multiple independent IFB (talent cue)
channels. Other applications may benefit from
the Model 348 user’s ability to easily cre-
ate monitor mixes from the eight input audio
channels. This makes the unit a viable choice
for listen-only scenarios.
Over a standard IP network, multiple Model
348 units can be used in party-line (PL) in-
tercom applications with help from an ex-
ternal Dante-enabled audio matrix such as
the Studio Technologies’ Model 5422 Dante
Intercom Audio Engine. Model 348 units can
also be used “point-to-point” or interfaced with
Dante-compatible matrix intercom systems.
The Model 348 includes two Neutrik ether-
CON RJ45 connectors which allow interfac-
ing with single or redundant Gigabit Ethernet
networks. The primary network connection
can provide power to the unit using a port on
a Power-over-Ethernet (PoE) network switch.
It can also be powered using a 12 Volt DC
source that is connected using a broadcast-
standard 4-pin XLR connector.
The Model 348 allows connection of broad-
cast- or intercom-style headsets that use
a dynamic or electret (DC powered) micro
-
phone. The unit provides both 5-pin female
XLR and 3.5 mm TRRS connectors which
allow both traditional “pro” and contemporary
gaming headsets to be utilized. In addition,
the Studio Technologies’ GME-3-12 electret
gooseneck microphone can be directly con-
nected using the ¼-inch jack located on the
top of the unit’s enclosure. A pushbutton
switch allows users to directly select headset
or gooseneck microphone operation. A low-
noise microphone preamplifier and associated
voltage-controlled-amplifier (VCA) dynamics
controller (compressor) ensures excellent
microphone audio quality while minimizing the
chance of signal overload.
Figure 1. Model 348 Intercom Station front and back views