APPLICATION SPOTLIGHT

In this week’s Application Spotlight, we describe how to design a reliable, cost-effective network paging system using RDL’s Dante and Format-A products.?

The featured product in our system example is the RU-NFD Network to Format-A Interface/Distributor. This network interface is a hybrid module that’s compatible with RDL Format-A twisted pair products; a key for designing cost-effective, easy to install Dante systems.

The RU-NFD converts three Dante audio channels to Format-A outputs (Pairs A, B or C). The unit converts a fourth Dante audio channel to a balanced line-level AUX output.

All three Format-A pairs are distributed to three separate rear-panel RJ45 jacks. Each output jack provides up to 200 mA of power to connected Format-A Receivers. Multiple Receivers can be daisy chained from one output jack or may be connected by a home run to each of the three outputs.

The RU-NFD 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, surface-mounted or utility Format-A Receivers. Each Format-A receiver can be connected near the RU-NFD or up to several thousand feet away.

The RU-NFD is powered from an external 24 Vdc power supply, available separately. The external supply will power this unit plus the Format-A Receivers connected to all three Format-A outputs.? If PoE is required, the RU-NFDP model offers the same features as the RU-NFD, plus, operation from a Poe enabled network switch.? ??

In this system example, a Dante? network is used to distribute several sources of facility-wide paging to multiple buildings. Within each building (one is shown), networked audio is converted to RDL Format-A for distribution to three floors using an RU-NFD Network to Format-A Interface/Distributor. Each paging source is routed to Format-A - Pair A, Pair B or Pair C through Dante Controller. The RU-NFD provides three Format-A output jacks that each send audio on pairs A, B & C to a twisted pair Receiver on one floor, then in turn to additional Receivers on the other two floors. By setting each TX-TPR1A Receiver to a different receiving pair (A, B or C), each floor receives its own paging source. ?An All Call initiated at the main paging station will page all floors simultaneously.

Standard CATx (CAT5 or greater) cables can be used. A TX-TPR1A Active Single-Pair Receiver on each floor delivers line-level paging audio to the local amplifier. Each Format A twisted pair Receiver bridges the UTP cable, allowing the source signal to continue to multiple Receivers. The Receivers are powered from the RU-NFD. (Note: If the total distances between the Receivers exceeds the recommended cable length for the cable type used, one or more additional power supplies may be required. If needed, an additional power supply may be connected to any of the Receiver modules. Consult the Format-A twisted pair data, or RDL technical support for more information.)

RDL offers several Dante to Format-A interfaces. Combined with Format-A Senders and Receivers as network endpoints, these hybrid interfaces provide reliable, cost-effective, easy to install Dante system designs without compromising features.?

CLICK HERE for More Details:? https://www.rdlnet.com/product_apps/AN-2226.pdf

#rdl #dante #avequipment #integrator #audiosystem #radiodesignlabs