Datasheet

Studio Technologies, Inc. Model 45DC Intercom Interface, Issue 3, Page 3
This allows full “end-to-end” call light support between two or
more Model 45DC units. It also allows a Model 45DC to send and
receive call light status with an interconnected Model 45DR Dante
to 2-Channel Party-Line Intercom Interface. The Model 45DR is
typically used with the RTS TW-series of party-line user beltpacks
including the popular BP-325.
Ethernet Data, PoE, and DC Power
Source
The Model 45DC connects to a data network using a standard
100 Mb/s twisted-pair Ethernet interface. The physical intercon
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nection is made by way of a Neutrik® etherCON RJ45 connector.
While compatible with standard RJ45 plugs, etherCON allows
a ruggedized, locking interconnection for harsh or high-reliability
environments. The Model 45DC’s operating power can be provided
by way of the Ethernet interface using the Power-over-Ethernet
(PoE) standard. This allows fast and efficient interconnection with
the associated data network. To support PoE power management,
the Model 45DC’s PoE interface reports to the power sourcing
equipment (PSE) that it is a class 3 (medium power) device.
The unit can also be powered using an external source of
12 Vdc.
For redundancy, both power sources can be connected simulta
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neously. An internal switch-mode power supply ensures that all
Model 45DC features, including party-line intercom circuit power,
are available when the unit is powered by either source. Four LEDs
on the back panel display the status of the network connection,
Dante interface, and PoE power source.
Simple Installation
The Model 45DC uses standard connectors to allow fast and con-
venient interconnections. An Ethernet signal is connected using a
Neutrik etherCON RJ45. If Power-over-Ethernet (PoE) is available
operation will commence immediately. An external 12 Vdc power
source can also be connected by way of a 4-pin XLR. Party-line
intercom connections are made using two 3-pin male XLR con
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nectors. The Model 45DC is housed in a rugged yet lightweight
aluminum enclosure that is designed to be “field tough.” It can be
used as a standalone portable unit, supporting what’s known in
the broadcast world as “throw-down” applications. Rack-mount
options are also available allowing one or two units to be mounted
in one space (1U) of a standard 19-inch rack enclosure.
Future Capabilities and Firmware
Updating
The Model 45DC was designed so that its capabilities can be
enhanced in the future. A USB connector, located on the Model
45DC’s back panel, allows the application firmware (embedded
software) to be updated using a USB flash drive. To implement
the Dante interface the Model 45DC uses Audinate’s Ultimo™
integrated circuit. The firmware in this integrated circuit can be
updated via the Ethernet connection, helping to ensure that its
capabilities remain up to date.