RDL SF-NL2 | Network to Audio Interface

Brand: RDL


Two Network to Two XLR Analog Audio Interface

The SF-NL2 is a line-level interface that converts two Dante network audio channels to two balanced audio outputs on XLR connectors. Each channel provides +4 dBu balanced for a network digital audio level of -20 dBFS. Each output is equipped with a selector to set the output to line level or attenuate the output by 50 dB to mic level. Special software is not required to configure the module. The SF-NL2 is a professional grade product for studio quality fidelity and low noise performance.
The SF-NL2 is PoE powered. Valid PoE power and synchronization to the Dante network is indicated by a green LED visible from the front of the unit.
The SF-NL2 is constructed in a durable, professional all-metal enclosure suitable for free-standing, surface-mounted or rack-mounted operation. This full-featured SYSFLEX product is engineered and manufactured in the U.S.A for continuous duty in demanding installations. The versatility of SYSFLEX products adds enormous flexibility in the design and installation of professional A/V systems.

Key Features

  • Converts Two Dante Network Audio Signals to Balanced Analog
  • Selectable Dante Sample Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
  • Each Output Switch-Selectable for Mic or Line Level
  • Normal (-20 dBFS) Line-Level Output is +4 dBu with 20 dB Headroom
  • Microphone Output Level is Attenuated 50 dB
  • Each Output is Protected Against Phantom Voltage up to 48 Vdc
  • Special Software Not Required for Module Setup
  • Exceptional Low-Noise and Low-Distortion Performance
  • High Resolution 24 Bit Digital to Analog Conversion
  • Legendary RDL Analog Filtering Enhances Superb Audio Performance
  • LED Indicator for Valid Power and Network Sync
  • Operation from PoE Power (Class 0, IEEE 802.3af)
  • Equipped for SysFlex Rack Mounting or Surface Mounting

Technical 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), 88.2 kHz, 96 kHz
Bit Depth Supported: 24 bits
Audio Operating Level: -20 dBFS = +4 dBu
Reference Level: 0 dBFS = +24 dBu
Outputs (2): XLR (male)
Output Level (operating): +4 dBu nominal LINE level balanced; -45 dBu nominal MIC level (into 150 ohms)
Output Level (maximum): +24 dBu LINE level
Output Impedance: < 100 ohms balanced
Selector per output: Mic/Line
Frequency Response: 20 Hz to 20 kHz (± 0.5 dB)
THD+N: < 0.1% (20 Hz to 20 kHz, +4 dBu/-20 dBFS); 0.015% at 1 kHz (typ)
Noise: < -75 dB (below +4 dBu); < -95 (below +24 dBu)
Crosstalk: Below Noise Floor (1 kHz, output to output); < -60 d5 dB (20 kHz)
Headroom above +4 dBu/-20 dBFS: 20 dB
Indicators (3): Ethernet Link and Speed (2, rear panel); Sync (front panel)
Ambient Operating Environment: 0° C to 50° C
Power Requirement: PoE Class 0, IEEE 802.3af
Specification Conditions: Gain/Level: ± 1 dB


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