Radio Design Labs RDL-RU-NL4

Availability: Available Unavailable

Product Type: Pro Audio

Product Vendor: Radio Design Labs

Product SKU: RDL-RU-NL4

Overview The RU-NFD modules are Dante audio network interface products compatible with RDL Format-A twisted pair products. These modules are designed to be mounted in equipment racks, closets, conference tables and on shelves or backboards in commercial/industrial installations. APPLICATION: The...


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Product Details

Overview

The RU-NFD modules are Dante audio network interface products compatible with RDL Format-A twisted pair products. These modules are designed to be mounted in equipment racks, closets, conference tables and on shelves or backboards in commercial/industrial installations.

APPLICATION: The RU-NFD is an RDL Format-A sender/distributor that connects to a Dante-enabled network. It converts three Dante audio channels to RDL Format-A. Each network channel corresponds to Pair A, B or C of the Format-A outputs. The unit converts a fourth Dante audio channel to a balanced line-level AUX output.

One front-panel green signal LED corresponds to each of the four Dante input channels. Received audio level is indicated on the variable-intensity LED indicator, facilitating setup when a networked computer is not connected at the module’s location.

The Format-A output is distributed to three separate rear-panel RJ45 jacks. Each Format-A output jack provides up to 200 mA of power to connected Format-A receivers. Multiple receivers may be daisy chained from one output jack, or may be connected by home run to each of the three outputs. Higher current Format-A receivers, such as RDL D-PSP1A powered Decora-style speakers, are to be individually connected to a separate output jack.

The RU-NFD output jacks support the entire range of Format-A receivers, making each output pair available for end-user connection on various wall plates, or feeding other equipment using rack-mounted, shelf-mounted or utility Format-A receivers. The wide array of Format-A receivers provide compatibility with commercial audio equipment operating at standard professional levels. High resolution digital audio converters coupled with RDL’s renowned analog filters provide superior fidelity with a very low noise floor. Each Format-A receiver may be connected near the RU-NFD or up to several thousand feet distant.

The RU-NFD is powered from an external 24 Vdc power supply, available separately. The external supply powers the RU-NFD and Format-A receivers connected to all three Format-A outputs. The RU-NFDP is equipped for PoE which powers the RU-NFD and Format-A receivers connected to the primary Format-A output jack. Audio is also distributed to the other two output jacks. Remote Format-A receivers connected to those other two output jacks are only powered from the RU-NFDP if an external 24 Vdc power supply is connected. If PoE power and an external 24 Vdc supply are both feeding an RU-NFDP, the unit will run from the external supply and will seamlessly switch over to PoE power upon loss of the external 24 V supply. The power feeding each Format-A RJ45 connector is separately protected by an automatically resetting fuse. A power LED is associated with each connector, facilitating identification of wiring faults.

PoE relies on the use of a PoE enabled network switch. The RU-NFDP will reserve power from the switch even while being powered from an external 24 Vdc supply.

The RU-NFD is constructed in a durable, professional all-metal enclosure suitable for free-standing, surface-mounted or rack-mounted operation. This full-featured product is engineered and manufactured in the U.S.A for continuous duty in demanding installations. Built to last. Built to outperform.

Features

  • Converts Four Dante Network Audio Signals to Professional Line Level
  • Line-Level Outputs Provide +4 dBu with > 18 dB Headroom
  • Exceptional Low-Noise and Low-Distortion Performance
  • Crosstalk Below the Noise Floor
  • Signal LEDs Indicate Audio for Each of the Four Dante Audio Sources
  • High Resolution 24 Bit Digital to Analog Conversion
  • Legendary RDL Analog Filtering Enhances Superb Audio Performance
  • LED Indicators Show Network Sync Status
  • Outputs Mute when Digital Audio Inputs are Inactive
  • Normal or Hot-Standby Operation from PoE (Model RU-NL4P)
  • Equipped for Rack Mounting or Surface Mounting

Specifications

  • Network Connector: RJ45 with Link and Speed indicators
  • Digital Audio Ethernet Protocol: Dante
  • Transmission Rate: 100 Mbps
  • Sample Rates Supported: 44.1 kHz, 48 kHz (default)
  • Bit Depth Supported: 24 bits
  • Audio Operating Levels: -18 dBFS = +4 dBu
  • Outputs (4): Balanced, detachable terminal block
  • Output Level: +4 dBu (nominal)
  • Output Impedance: 150 Ω balanced; 75 Ω unbalanced
  • Frequency Response: 20 Hz to 20 kHz (± 0.5 dB)
  • THD+N: < 0.05%
  • Noise below +4 dBu: < -80 dB (output active); < -95 dB (outputs muted)
  • Crosstalk: < 85 dB (20 Hz to 20 kHz)
  • Headroom above +4 dBu: > 18 dB
  • Indicators (9): Power In (1); Audio Signal LEDs (4), Network Sys and Sync (2), Ethernet Link and Speed (2)
  • Power Connections (2): Power Jack; Detachable Terminal Block
  • Ambient Operating Environment: 0° C to 40° C
  • Power Requirement: 24 Vdc @ 110 mA, or PoE (RU-NL4P)
  • PoE (RU-NL4P): Class 0, IEEE 802.3af
  • Dimensions: 5.8" (15 cm) W; 1.7" (4.3 cm) H; 5.2" (13.2 cm) D
  • Package Type: Cardboard Box
  • Package Dimensions: 6 x 6 x 2.625 in.
  • Shipping Weight: 1.576 lbs. (RU-NL4); 1.601 lbs. (RU-NL4P)
  • WEEE weight: 1.316 lbs. (RU-NL4); 1.341 lbs. (RU-NL4P)
  • Tariff code: 8517.18.0050
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