Network to Format A Interface/Distributor-Dante Input-3 Format A, 1 Balanced Line Aux Outputs-with PoE

The RDL RU-NFDP converts four Dante network audio signals for integration with RDL Format-A equipment and a balanced auxiliary line connection. Three Dante signals feed Format-A pairs A, B, and C, which are distributed through three RDL Format-A RJ45 output jacks. The fourth Dante signal is converted to a balanced +4 dBu auxiliary output on a detachable terminal block. High-resolution 24-bit digital-to-analog conversion, RDL analog filtering, signal monitoring, and flexible power options support dependable network-audio distribution.

Ideal Use Cases

This model is suited to systems that transport audio over a Dante network but require connections to RDL Format-A active or passive receivers. Its three Format-A outputs allow the A, B, and C signal pairs to be distributed through CATx cabling, while the fourth network channel remains available as a balanced analog line output. The combination is useful when one interface must serve Format-A endpoints and another device requiring a nominal +4 dBu balanced signal.

Why Choose This Model

The RU-NFDP combines four-channel Dante reception, Format-A distribution, auxiliary analog output, and PoE operation in one unit. Each received network channel has an audio signal LED, making it easier to confirm signal activity without separate test equipment. Network System and Sync indicators show Dante network status, while Ethernet Link and Speed indicators provide additional connection information. Outputs automatically mute when their digital audio inputs are inactive. The unit also supports normal or hot-standby operation from PoE.

Installation and Integration

The 100 Mbps network connection uses an RJ45 connector with Link and Speed indicators. Format-A connections also use RJ45 jacks, allowing installation through CATx cable. The primary Format-A output jack can power remote Format-A receivers. When an external 24 Vdc supply is used, connected Format-A receivers can be powered through all three output jacks. Power connections include a power jack and detachable terminal block, and the recommended supplies are the PS-24AS for the USA and PS-24AX for international use.

The RU-NFDP accepts 24 Vdc at 120 mA plus connected loads or Class 0 IEEE 802.3af PoE. It is equipped for either rack mounting or surface mounting. The chassis measures 5.8 inches wide, 1.7 inches high, and 5.2 inches deep. Its specified ambient operating range is 0 degrees C to 40 degrees C.

Performance Highlights

The Dante interface supports 44.1 kHz and 48 kHz sample rates, with 48 kHz identified as the default, and operates at 24-bit depth. Audio operating level is specified as 18 dBFS equaling +4 dBu. Frequency response extends from 20 Hz to 20 kHz within ±0.75 dB, while THD+N is specified at less than 0.1 percent. Headroom above +4 dBu is greater than 18 dB.

Noise below +4 dBu is specified at less than -85 dB when a pair is active and less than -100 dB when muted. Crosstalk is listed at less than 80 dB from 20 Hz to 20 kHz. The auxiliary connection provides a nominal +4 dBu balanced output with 150 ohms balanced or 75 ohms unbalanced output impedance.

What Makes It Different

Unlike an interface that provides only a single output format, the RU-NFDP separates four Dante signals into two practical connection types. Three signals become Format-A pairs A, B, and C across the three Format-A output jacks, while the fourth becomes a balanced analog auxiliary feed. This arrangement preserves access to all four received channels while supporting existing Format-A infrastructure. Its combination of receiver-powering capability, external 24 Vdc operation, IEEE 802.3af PoE, automatic output muting, and 12 status indicators provides clear integration and monitoring options.

Final Assessment

The RDL RU-NFDP is a focused Dante-to-Format-A interface and distributor for installations that need three Format-A output connections plus one balanced +4 dBu auxiliary output. Its 24-bit conversion, 44.1 and 48 kHz support, CATx connectivity, detailed status indication, receiver-powering options, and rack or surface mounting make it a comprehensive bridge between Dante network audio and RDL Format-A components.