Datasheet

ManualsBrandsSTUDIO TECHNOLOGIES ManualsNetwork Audio + VideoModel 45DC - Dante-enabled Intercom Interface

50017-0115, Issue 3

Key Features:

•

Dante™ Audio-over-Ethernet technology

• Integrated party-line intercom power sources

• Analog hybrids with auto null capability

• Input and output level metering

• Excellent audio quality

• PoE and 12 Vdc powering

• Standard connectors

• Table-top, portable, or optional rack-mount use

Overview

The Model 45DC Dante™ to Dual Party-Line Intercom Interface is

designed for applications that utilize single-channel analog party-

line (PL) intercom technology. The unit provides two independent

single-channel interfaces that each support one party-line audio

channel. Single-channel party-line intercom systems are commonly

used in theater, entertainment, and education applications where

a simple, reliable, low-cost, and easy to use solution is desired.

Analog party-line products from Clear-Com® and ASL are directly

compatible with the Model 45DC. The Dante Audio-over-Ethernet

media networking technology is used to transport the send and

receive audio channels associated with each of the two party-line

circuits. Two hybrid circuits with automatic nulling provide excel

lent audio quality and high return-loss. (These hybrid circuits are

sometimes referred to as 2-wire to 4-wire converters.) The Model

45DC is directly compatible with the latest broadcast and audio

equipment that uses Dante technology. An Ethernet connection is

all that’s required to make the Model 45DC part of a sophisticated,

networked audio system.

A Model 45DC can interconnect with devices such as matrix in

tercom systems, DSP processors, and audio consoles. The Model

45DC is directly compatible with the RTS ADAM® OMNEO®

matrix intercom network. Alternately, two Model 45DC units can

interconnect by way of the associated Ethernet network. The

Model 45DC can be powered by Power-over-Ethernet (PoE) or

an external source of 12 Vdc. Two party-line power

sources with impedance termination networks can

be supplied by the Model 45DC, allowing connection

of two sets of user beltpacks such as the Clear-Com

RS-501 and RS-701. A Model 45DC can also con

nect with one or two existing powered and termi

nated intercom circuits. Audio level meters provide

confirmation of system performance during setup and operation.

Support for transporting call light signals between Model 45DC

units is also provided.

Standard connectors are used for party-line intercom, Ethernet,

and DC power interconnections. The Model 45DC’s enclosure has

a “1/2-rack” 1U form factor and weighs less than two pounds,

making it well suited for use in portable applications. Alternately,

using one of the optional rack-mount front panels, one or two

Model 45DC units can be mounted in a single space (1U) of a

standard 19-inch rack enclosure.

Applications

There are two main ways that the Model 45DC can be used in ap-

plications. The first is to add party-line intercom support for matrix

intercom systems. The second is to link two stand-alone party-line

intercom systems. Ports on matrix intercom systems that support

Dante, such as the RTS ADAM with OMNEO, can be routed to

the Model 45DC’s Dante input (receiver) and output (transmitter)

channels. The Model 45DC’s circuitry will then convert these sig

nals into two single-channel party-line intercom circuits. In this way

adding party-line support to RTS + OMNEO is a simple task. The

Model 45DC can also be used with matrix intercom systems that

don’t support Dante. An external analog-to-Dante interface can

be used to convert analog intercom ports to Dante channels. Once

in the digital domain, these Dante channels can be interconnected

with the Model 45DC’s audio input and output channels.

Two separate sets of party-line intercom circuits can easily be

interconnected using two Model 45DC Interfaces. At each end a

Model 45DC is connected to one or two party-line circuits as well

as the Dante network. The Dante Controller application will then

be used to route the audio channels between the two units. That’s

it — nothing else is required to achieve excellent performance.

The Model 45DC can also be used to “bridge” two single-channel

party-line intercom circuits with one 2-channel party-line intercom

circuit. This involves using a Model 45DC for the two single-

channel circuits and one of the Studio Technologies Model 45DR

Intercom Interface units for the 2-channel circuit. The Model 45DR

is the “cousin” of the Model 45DC and supports one 2-channel

Summary of content (4 pages)

PAGE 1
an external source of 12 Vdc. Two party-line power sources with impedance termination networks can be supplied by the Model 45DC, allowing connection of two sets of user beltpacks such as the Clear-Com RS-501 and RS-701. A Model 45DC can also connect with one or two existing powered and terminated intercom circuits. Audio level meters provide Key Features: confirmation of system performance during setup and operation.
PAGE 2
party-line intercom circuit rather than two singlechannel circuits. These 2-channel circuits, typically supported by equipment from RTS, are commonly used in broadcast applications. Party-Line Interfaces The Model 45DC’s two party-line intercom interfaces are optimized for connection with two single-channel party-line circuits and user passband of 100 Hz on the low end and 8 kHz on the high end, natural-sounding voice signals can be sent to and received from a party-line circuit.
PAGE 3
This allows full “end-to-end” call light support between two or Simple Installation more Model 45DC units. It also allows a Model 45DC to send and The Model 45DC uses standard connectors to allow fast and con- receive call light status with an interconnected Model 45DR Dante venient interconnections. An Ethernet signal is connected using a to 2-Channel Party-Line Intercom Interface. The Model 45DR is Neutrik etherCON RJ45.
PAGE 4
Specifications Power Sources: Power-over-Ethernet (PoE): class 3 (medium power) per IEEE 802.3af External: 10 to 18 Vdc, 1.