RDL RU-BNFP Format-A Bi-Directional Network Interface, PoE

The RU-BNF 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-BNF is an RDL Format-A sender/receiver that connects to a Dante-enabled network, providing all the features of an RDL RU-FN Format A to Network Interface and an RU-NFD Network to Format-A Interface/Distributor.

Network to Format-A Interface/Distributor Section

The RU-BNF 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-BNF 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-BNF converts the three Format-A audio pairs to Dante networked digital audio channels. Each network channel corresponds to Pair A, B or C of the Format-A input. The unit converts a fourth input, balanced or unbalanced line-level AUX, to Dante.

One front-panel green signal LED corresponds to each of the three Format-A 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. A Dual-LED VU meter facilitates adjustment of the front-panel AUX input gain control. The AUX input supports the complete range of normal unbalanced and balanced line-level sources.

Key Features

• Converts RDL Format-A and Aux Source to Four Dante Network Channels
• Easy Installation with Format-A Connections on RJ45 through CATx Cable
• Format-A Audio Sources from Pairs A, B and C Converted to Dante
• Fourth Dante Audio Channel Fed from Unbalanced or Balanced Aux Line Input
• Front-Panel Gain Adjustment with Dual-LED VU Meter for Aux Input
• Signal LEDs Indicate Audio for Each of the Three Audio Source Format-A Pairs
• Converts Four Dante Network Audio Signals to RDL Format-A and Aux
• Three Dante Audio Signals Feed Format-A Output Pairs A, B and C
• Fourth Dante Audio Signal Feeds Auxiliary Balanced +4 dBu Line Output
• Format-A Pairs are Distributed to Three Separate Format-A Output Jacks
• Signal LEDs Indicate Audio for Each of the Four Received Dante Audio Signals
• External 24 Vdc Supply Powers All Connected Format-A Modules through RJ45 Jacks
• PoE (RU-BNFP) Powers Format-A Input and Primary Format-A Output RJ45 Jacks
• High Resolution 24 Bit Analog to Digital and Digital to Analog Conversion
• Legendary RDL Analog Filtering Enhances Superb Audio Performance
• LED Indicators Show Network Sync Status
• Normal or Hot-Standby Operation from PoE (Model RU-BNFP)
• Compatible with Wide Array of RDL Format-A Active and Passive Senders and Receivers
• Equipped for 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)
Bit Depth Supported
24 bits
Audio Operating Levels
-18 dBFS = +4 dBu
Format-A to Network Interface Section
Format-A Input
RDL Format-A RJ45
Format-A Signal Pairs Used (3)
A, B, C
Frequency Response
20 Hz to 20 kHz (± 0.5 dB)
THD+N
< 0.1%
Noise below +4 dBu
< -75 dB
CMRR
> 90 dB (50 Hz to 120 Hz, any input pair)
Crosstalk
< 80 dB (20 Hz to 20 kHz)
Headroom above +4 dBu
> 18 dB
AUX Input
Input
Balanced, detachable terminal block
Input Impedance
> 20 kΩ
Input Level for +4 dBu
-16 dBu to +12 dBu, +22 dBu maximum
Frequency Response
20 Hz to 20 kHz (± 0.75 dB)
THD+N
< 0.1%
Noise below +4 dBu
< -75 dB
CMRR
> 60 dB (50 Hz to 120 Hz)
Crosstalk
< 80 dB (20 Hz to 20 kHz)
Headroom above +4 dBu
> 18 dB
Network to Format-A Interface/Distributor Section
Format-A Outputs
RDL Format-A RJ45 (3)
Format-A Signal Pairs Used (3)
A, B, C (each Format-A output)
Frequency Response
20 Hz to 20 kHz (± 0.75 dB)
THD+N
< 0.1%
Noise below +4 dBu
< -85 dB (pair active); < -100 dB (pair muted)
Crosstalk
< 80 dB (20 Hz to 20 kHz)
Headroom above +4 dBu
> 18 dB
AUX Output
Output
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
< 0.1%
Noise below +4 dBu
< -75 dB
Crosstalk
< 80 dB (20 Hz to 20 kHz)
Headroom above +4 dBu
> 18 dB
Indicators (18)
Power In (1); Power Out (4); Audio Signal LEDs (7); AUX Dual-LED VU Meter (2); Network Sys and Sync (2), Ethernet Link and Speed (2)
Power Connections (2)
Power Jack; Detachable Terminal Block
Ambient Operating Environment
0 Degrees C to 40 Degrees C
Power Requirement
24 Vdc @ 150 mA plus connected loads, or PoE (RU-BNFP)
PoE (RU-BNFP)
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
1.72 lbs. (RU-BNF); 1.745 lbs. (RU-BNFP)