Datasheet

© by Studio Technologies, Inc., 50290-0120, Issue 1
Overview
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 designed to serve
as an audio control center for production and support personnel
in numerous 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 create 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) intercom applications with help from an external
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 etherCON RJ45 connectors which allow interfacing 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 broadcast- or intercom-style headsets that use a dynamic or electret (DC powered)
microphone. 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 connected 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.
All Model 348 operating features are configured using the STcontroller software application. The extensive set of parameters
allows the unit’s functions to be tailored to meet the needs of many applications. STcontroller, compatible with version 7 and
later of the Windows® operating system, is available, free of charge, from the Studio Technologies’ website. It’s a fast and
simple means of configuring, revising, saving, and loading a unit’s operating parameters.
The Model 348’s front panel includes eight rotary controls (“encoders”) which are used to adjust the level of the eight Dante
monitor input signal sources. Using RGB (red-green-blue) LEDs, each control is illuminated and can display if signal is present
on the associated audio channel or if the channel is muted. The user can monitor the Dante audio inputs by means of either
the headset or a built-in speaker. A modern class-D amplifier integrated circuit drives the speaker efficiently while preserv
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ing audio fidelity. Two additional rotary encoders are used to control the master audio level and mute (on/off) status of the
signals being sent to the headset and speaker outputs.
Model 348 Intercom Station