Studio Technologies Model 45DC
Dante To Dual PartyLine Intercom Interface


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List Price: $1,395.00
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The Studio Technologies Model 45DC Dante to Dual Party-Line Intercom Interface is designed for applications that utilize single-channel analog party-line (PL) intercom technology. This type of intercom is 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 are 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 excellent 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 intercom 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 volts DC. A party-line power source and impedance termination network can be supplied by the Model 45DC, allowing connection of user beltpacks such as the Clear-Com RS-501 and RS-701. A Model 45DC can also connect with an existing powered and terminated intercom circuit. Audio level meters provide confirmation of system performance during setup and operation. 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.

Studio Technologies Model 45DC 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 volt DC powering
  • Standard connectors
  • Table-top, portable, or optional rack-mount use

Studio Technologies Model 45DC Specifications:

  • Power Sources:
    • Power-over-Ethernet (PoE):  Class 3 (medium power) per IEEE 802.3af
    • External:  10 to 18 volts DC, 1 amp max @ 12 volts DC
  • Network Audio Technology:
    • Type:  Dante Audio-over-Ethernet
    • Bit Depth:  Up to 24-bit
    • Sample Rates:  44.1 and 48 kHz
    • Number of Output Channels:  2
    • Number of Input Channels:  2
    • Network Interface:
    • Type:  Twisted-pair Ethernet, Power-over-Ethernet (PoE) supported
    • Data Rate:  100 Mb/s (10 Mb/s Ethernet not supported)
  • General Audio:
    • Frequency Response:  +0/–3 dB, 100 Hz to 8 kHz
    • Distortion (THD+N):  Less than TBD%, measured at 1 kHz, Dante input to party-line interface pin 3
    • Signal-to-Noise Ratio:  Greater than TBD dB, measured at 1 kHz, Dante input to party-line interface pin 3
  • Party-Line (PL) Intercom Interface:  2
    • Type:  Single-channel party-line (pin 1 common; pin 2 DC; pin 3 unbalanced analog audio) Compatibility: single-channel intercom systems such as those offered by Clear-Com®
    • Impedance, pin 3 – Local Power Not Enabled:  Greater than 10k Ohms
    • Impedance, pin 3 – Local Power Enabled:  200 Ohms
    • Analog Audio Level:  –10 dBu, nominal, +TBD dBu maximum
    • "Call Light" Signal:  DC voltage on pin 3
    • "Mic Kill" Signal:  Momentary break in DC voltage on pin 2
    • Power Source, Pin 2:  20 volts DC, 200 milliamperes maximum
  • Party-Line Hybrids:  2
    • Topology:  3-section analog circuitry compensates for resistive, inductive, and capacitive loads
    • Nulling Method:  Automatic upon user initiation, processor implements digital control of analog circuitry; settings stored in non-volatile memory
    • Nulling Line Impedance Range:  120 to 350 ohms
    • Nulling Cable Length Range:  0 to 3500 feet
    • Trans-Hybrid Loss:  Greater than 40 dB, typical at 800 Hz
  • Meters:  4
    • Function:  Displays level of Dante input and output channels
    • Type:  5-segment LED, modified VU ballistics
  • Connectors:
    • Party-Line Intercom:  Two 3-pin male XLR
    • Ethernet:  Neutrik etherCON RJ45
    • USB:  Type A receptacle
    • External DC:  4-pin male XLR
  • Dimensions (Overall):
    • 8.7 inches wide (22.1 cm)
    • 1.72 inches high (4.4 cm)
    • 8.3 inches deep (21.1 cm)
    • Mounting Option:  1U rack-mount front panels for one or two units
  • Weight:  1.7 pounds (0.77 kg); rack-mount front panels add 0.2 pounds (0.09 kg)
Front Panel Rack Mount for 1x Model 45DC UnitStudio Technologies M45DCRM-1 Front Panel Rack Mount for 1x Model 45DC Unit

The Studio Technologies M45DCRM-1 is a front panel rack mount for one of their Model 45DC interfaces.

Usually ships in 7-14 business days.
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Our Price:$94.48List Price: $95.00

Front Panel Rack Mount for 2x Model 45DC UnitsStudio Technologies M45DCRM-2 Front Panel Rack Mount for 2x Model 45DC Units

The Studio Technologies M45DCRM-2 is a front panel rack mount for two of their Model 45DC interfaces.

Usually ships in 7-14 business days.
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Our Price:$94.48List Price: $95.00

100-240V 50/60Hz Power SupplyStudio Technologies PS-DC-02 100-240V 50/60Hz Power Supply

The Studio Technologies PS-DC-02 is a universal input, 100-240 volts, 50/60 Hz; 12 volts DC, 1.5 amps (18 watts) output power supply. IEC C14 mains inlet; cable-mounted 4-pin female XLR DC output. Used for powering Models 214, 215, 216, ...

Usually ships in 7-14 business days.
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Our Price:$71.60List Price: $72.00

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