Manual

Issue 2, December 2018 Model 391 User Guide
Page 8 Studio Technologies, Inc.
standard. This allows fast and efficient
interconnection with an associated data
network. To support PoE power man-
agement, the Model 391’s PoE interface
reports to the power sourcing equipment
(PSE) that it’s a class 1 (very low power)
device. If a PoE-enabled Ethernet port
can’t be provided by the associated Ether-
net switch a low-cost PoE midspan power
injector can be utilized.
Setup, Configuration, and
Operation
Setup, configuration, and operation of the
Model 391 is simple. An etherCON RJ45
jack is used to interconnect the network
interface with a standard twisted-pair
Ethernet cable associated with a port on
a PoE-enabled network switch. This con-
nection provides both network data and
power. A 3-conductor XLR connector pro-
vides access to the analog, electronically
balanced line output. The Dante Control-
ler personal computer application is used
to route (“subscribe”) one or two audio
sources to the Model 391’s inputs.
All Model 391 features are configured
using the STcontroller personal computer
software application. An extensive set of
parameters allows the unit’s operation
to be tailored to meet the needs of many
applications. STcontroller, compatible with
version 7 and later of the Windows® oper-
ating system, is a fast and simple means
of confirming and revising the unit’s oper-
ating parameters.
A pushbutton switch is used to select the
operating mode. A rotary potentiometer
(“pot”) makes it easy for the user to set
the level of the audio sounder. Three sta-
tus LEDs provide a clear indication of the
unit’s operating mode and alerting status.
The Model 391’s compact enclosure is
made from steel, whose mass that helps
to keep it stable at whatever location it is
deployed.
Future Capabilities and
Firmware Updating
The Model 391 was designed so that
its capabilities and performance can be
enhanced in the future. A USB connector,
located on the unit’s main circuit board
(underneath the unit’s cover), allows the
application firmware (embedded software)
to be updated using a USB flash drive.
To implement the Dante interface the
Model 391 uses Audinate’s Ultimo™ inte-
grated circuit. The firmware in this integrat-
ed circuit can be updated via the Ethernet
connection, helping to ensure that its
capabilities remain up to date.
Getting Started
What’s Included
Included in the shipping carton are a
Model 391 Dante Alerting Unit and a
printed copy of this guide. As a device that
is Power-over-Ethernet (PoE) powered, no
external power source is provided. In most
applications an Ethernet switch with PoE
capability will be utilized. If that’s not avail-
able a PoE midspan power injector can be
used.
Connections
Signal interconnections will be made
using the two connectors located on the
back of the Model 391’s enclosure. An
Ethernet data connection with Power-over-
Ethernet (PoE) capability will be made
using either a standard RJ45 patch cable