
RACK-UP® SERIES
Models RU-FN & RU-FNP
Format-A to Network Interface
y Converts RDL Format-A and Aux Source to Four Dante Network Channels
y Easy Installation with Format-A Connections on RJ45 through CATx Cable
y Format-A Audio Sources from Pairs A, B and C Converted to Dante
y Fourth Dante Audio Channel Fed from Unbalanced or Balanced Aux Line Input
y Front-Panel Gain Adjustment with Dual-LED VU Meter for Aux Input
y Signal LEDs Indicate Audio for Each of the Three Format-A Pairs
y High Resolution 24 Bit Analog to Digital Conversion
y Legendary RDL Analog Filtering Enhances Superb Audio Performance
y Powers Remote Format-A Senders through Format-A Input Jack
y LED Indicators Show Network Sync Status
y Normal or Hot-Standby Operation from PoE (Model RU-FNP)
y Compatible with Wide Array of RDL Format-A Active and Passive Senders
y Equipped for Rack Mounting or Surface Mounting
The RU-FN 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-FN is an RDL Format-A receiver that connects to a Dante-enabled network. It 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 four th 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.
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, or receiving signals
from other equipment using rack-mounted, shelf-mounted or utility Format-A senders. The wide array of Format-A senders provides 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 sender may be connected near the RU-FN or up to several thousand feet distant.
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 for 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. The power feeding the Format-A RJ45 connector is
separately protected by an automatically resetting fuse. A power LED is associated with the connector, facilitating identification of wiring faults.
PoE relies on the use of a PoE enabled network switch. The RU-FNP will reserve power from the switch even while being powered from an external 24 Vdc supply.
The RU-FN 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.
RDL • 659 6th St. • Prescott, AZ., USA 86301 • (928) 443-9391 • FAX (928) 443-9392 • www.rdlnet.com

RACK-UP® SERIES
Models RU-FN & RU-FNP
Format-A to Network Interface
Installation/Operation
Declaration of Conformity available from rdlnet.com.
Sole EMC specications provided on product package.
Specications are subject to change without notice.
TYPICAL PERFORMANCE
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: -20 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 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/-18 dBFS: < -75 dB
CMRR: > 60 dB (50 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° C to 40° 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)
WEEE weight: 1.325 lbs. (RU-FN); 1.35 lbs. (RU-FNP)
Tariff code: 8517.18.0050
891-3565A
Radio Design Labs Technical Support Centers
U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506
Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287