RU-FN Modules: The Ideal Solution for Dante Audio Network Interfaces
RU-FN modules are Dante audio network interface devices that are compatible with RDL Format-A twisted pair products. They are designed to be mounted in various locations, such as equipment racks, closets, conference tables, and shelves or backboards in commercial and industrial installations.

Application
As an RDL Format-A receiver, the RU-FN connects to a Dante-enabled network and 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. Additionally, the unit converts a fourth input, balanced or unbalanced line-level AUX, to Dante.

Features
The front-panel green signal LED corresponds to each of the three Format-A input channels, while the received audio level is indicated on the variable-intensity LED indicator. The 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.

Compatibility
The Format-A input jack provides up to 200 mA of power to connected Format-A senders. Multiple senders may be daisy-chained from the Format-A input jack. The RU-FN Format-A input supports the entire range of Format-A senders, making each input pair available for end-user connection on various wall plates.

Power
The RU-FN is powered from an external 24 Vdc power supply, available separately. The external supply powers the RU-FN and Format-A senders connected to the Format-A input. The RU-FNP is equipped with PoE, which powers the RU-FN and the connected Format-A senders. If PoE power and an external 24 Vdc supply are both feeding an RU-FNP, the unit will run from the external supply and will seamlessly switch over to PoE power upon loss of the external 24 V supply.

Durability
The RU-FN is constructed with 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.

Key Features

• The RU-FN modules are audio network interface products that support Dante and are compatible with RDL Format-A twisted pair products.
• These modules are designed to be installed in various locations such as equipment racks, closets, conference tables, and shelves or backboards in commercial/industrial installations.
• They convert RDL Format-A and Aux Source to four Dante network channels.
• Installation is made easy with Format-A connections on RJ45 through CATx cable.
• Format-A audio sources from Pairs A, B, and C are converted to Dante.
• The fourth Dante audio channel is fed from an unbalanced or balanced Aux line input.
• There is a front-panel gain adjustment with a dual-LED VU meter for the Aux input.
• Signal LEDs indicate audio for each of the three Format-A pairs.
• The modules feature high-resolution 24-bit analog to digital conversion.
• Legendary RDL analog filtering enhances superb audio performance.
• They can power remote Format-A senders through the Format-A input jack.
• LED indicators show network sync status.
• The modules can operate normally or in hot-standby mode using PoE (Model RU-FNP).
• They are compatible with a wide array of RDL Format-A active and passive senders.
• The modules are equipped for both rack mounting and 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 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
Indicators (11)
Power In (1); Power Out (1); Audio Signal LEDs (3), 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 @ 100 mA plus connected loads, or PoE (RU-FNP)
PoE (RU-FNP)
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
1.585 lbs. (RU-FN); 1.61 lbs. (RU-FNP)