Studio Technologies Model 5421A Dante Intercom Audio Engine

Applications

The Model 5421A is compatible with many Dante-compliant devices including the extensive range of intercom beltpacks from Studio Technologies. These include the single-channel / dual-listen Model 372A and Model 373A, the 2-channel Model 370A and Model 371A, and the 4-channel Model 374A. The Model 5421A will also function directly with other Dante-supporting devices such as the Model 348 Intercom Station and Model 391 Dante Alerting Unit. In addition, the Model 5421A can function with matrix intercom systems, audio consoles, and wireless intercom base stations.

Dante over Ethernet

Audio data associated with the Model 5421A is sent and received using the Dante audio-over-Ethernet media networking technology. Audio signals with a sample rate of 48 kHz and a bit depth of up to 16, 24, and 32 are supported. Up to 16 Dante receiver (input) and 16 transmitter (output) channels are available to implement virtual party-line (PL) intercom circuits.

AES67 and DDM

Using the Dante Controller software application, the Model 5421A's Dante interface can be configured to support AES67 digital audio signals. The unit is also compliant with the Dante Domain Manager (DDM) software application. DDM offers an enhanced set of network control and monitoring features, making it ideal for security-conscious applications. This may also allow the Model 5421A's audio channels to support ST 2110-30.

Pro Audio Quality and Auto Mix

The Model 5421A's audio circuitry was designed to meet the demands of professional audio applications, far exceeding that of typical intercom products. Audio processing is performed in the digital domain using a high-speed field-programmable-gate-array (FPGA) integrated circuit. The Model 5421A's Auto Mix function utilizes a sophisticated FPGA-based algorithm to provide enhanced audio intelligibility. This feature is unique to party-line (PL) intercom applications and offers the opportunity for users to obtain the finest audio performance.

Status LEDs and Configuration

Two LEDs, located on the Model 5421A's front panel, provide an indication of the Dante interface's status. LEDs associated with the back-panel R45 jack display the real-time status of the connected Ethernet signal. No push button or configuration switches are provided. The Studio Technologies' STcontroller software application is used to configure the unit's operating parameters.

Ethernet Data and Power Source

The Model 5421A interconnects with a local-area-network (LAN) using a standard Gigabit (1000 Mb/s) twisted-pair Ethernet signal. The physical connection is made by way of a RJ45 jack. The Model 5421A's operating power is provided by Power-over-Ethernet (PoE). For network management purposes, the unit's Ethernet interface will report to the power sourcing equipment (PSE) that it's a Class 2 (low power) powered device (PD).

Simple Installation

The Model 5421A is housed in a rugged yet lightweight aluminum enclosure that is designed to be field tough. It can be used as a standalone portable unit, supporting what's known in the broadcast world as throw-down applications. It can be directly placed upon on a rack shelf or other flat surface. Optional installation kits are available to allow one or two units to be mounted in one space (1 RU) of a standard 19-inch rack enclosure, in a panel cutout, or to a flat surface. The Model 5421A uses a standard RJ45 jack to allow fast and convenient interconnection. Initial operation will commence when a Gigabit Ethernet signal with Power-over-Ethernet (PoE) capability is connected. Normal operation will take place after the unit boots up. This process requires approximately 30 seconds.