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RDL RU-LB2 2×2 Line-Level Bi-Directional Dante Interface / Balanced +4 dBu / 24-Bit 44.1-48kHz

SKU: RU-LB2
Brand: RDL
$783.09
Brand RDL
SKU RU-LB2
Weight 2.00 lbs
Warranty 3 Years
Condition New
Status Available
Expert

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Description

The RU-LB2 is a 2×2 line-level bi-directional Dante network interface designed to convert between standard analog line-level signals and Dante network audio channels. It accepts two line-level inputs and presents two balanced line-level outputs driven from Dante streams. The module is intended for professional AV installations where reliable analog-to-network and network-to-analog conversion is required.

The unit converts two Dante receive channels to balanced line-level outputs at +4 dBu nominal and converts two line-level inputs to Dante network channels using high-resolution 24-bit conversion. Front-panel controls include input gain trimmers and Dual-LED VU meters for precise input level setting, plus single signal LEDs for received Dante channels to aid setup without a networked computer. The RU-LB2 provides greater than 18 dB of headroom above nominal operating level to preserve transient peaks.

Performance specifications include 24-bit ADC/DAC, supported sample rates of 44.1 kHz and 48 kHz (default), THD+N below 0.05%, noise floor better than 80 dB below operating level, and channel crosstalk below 85 dB across the audio band. Input impedance exceeds 20 kQ and the audio frequency response is 20 Hz to 20 kHz within ±0.5 dB. These characteristics deliver low-noise networked audio and ample dynamic range for professional systems.

Connectivity is provided via an RJ45 Dante network port with link and speed indicators and balanced detachable terminal blocks for the two inputs and two outputs. Power is via an external 24 Vdc supply or, for the RU-LB2P variant, PoE Class 0 IEEE 802.3af with normal or hot-standby operation. The front panel also exposes indicators for network sync and Ethernet status to simplify commissioning and monitoring.

Typical applications include equipment rack and closet installations, conference table or podium audio integration, distributed audio systems in corporate or hospitality venues, and broadcast or house-of-worship signal transport. The RU-LB2 is suited to both sending line-level sources onto a Dante network and receiving Dante channels for local balanced outputs. Its compact enclosure and terminal-block connectivity make it easy to integrate into existing analog signal paths.

The RU-LB2 is built in an all-metal enclosure for free-standing, surface-mounted or rack-mounted installation and is engineered for continuous duty in commercial environments. Setup and routine operation are simplified by front-panel meters and LEDs and by the module’s deterministic Dante connectivity. The design emphasizes dependable audio fidelity and long-term reliability in professional AV systems.

Product Diagrams

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Specifications

Network ConnectorRJ45 with Link and Speed indicators
Digital Audio Ethernet ProtocolDante
Transmission Rate100 Mbps
Sample Rates Supported44.1 kHz, 48 kHz (default)
Bit Depth Supported24 bits
Audio Operating Levels-18 dBFS = +4 dBu
Line Inputs to Network Interface Section
Inputs (2)Balanced detachable terminal block
Input Level for +4 dBu-16 dBu to +12 dBu, +22 dBu maximum
Input Impedance> 20 kQ
Frequency Response20 Hz to 20 kHz (± 0.5 dB)
THD+N< 0.05%
Noise below +4 dBu< -80 dB
CMRR> 60 dB (50 Hz to 120 Hz)
Crosstalk< 85 dB (20 Hz to 20 kHz)
Headroom above +4 dBu> 18 dB
Network to Line Level Interface Section
Outputs (2)Balanced detachable terminal block
Output Level+4 dBu (nominal)
Output Impedance150 Q balanced; 75 Q unbalanced
Frequency Response20 Hz to 20 kHz (± 0.5 dB)
THD+N< 0.05%
Ncise 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 (11)Power In (1); Output Signal LEDs (2); Input Dual-LED VU Meters (4); Network Sys and Sync (2); Ethernet Link and Speed (2)
Power Connections (2)Power Jack; Detachable Terminal Block
Ambient Operating Environment0 C to 40 C
Power Requirement24 Vdc @ 120 mA, or PoE (RU-LB2P)
PoE (RU-LB2P)Class 0 IEEE 802.3af
Dimensions5.8 in W; 1.7 in H; 5.2 in D
Package TypeCardboard Box
Package Dimensions6 x 6 x 2.625 in
Shipping Weight1.672 lbs (RU-LB2); 1.73 lbs (RU-LB2P)
WEEE weight1.412 lbs (RU-LB2); 1.47 lbs (RU-LB2P)
Tariff code8517.18.0050

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