IR plus Infrared Modulator Wi-Fi Server with Dante input supporting 2

The Williams AV IR+ Control Center with Dante provides audio over Wi-Fi or infrared for assistive listening and other communication purposes. The black, single-rack-unit control center combines Dante support with two versatile audio inputs, DSP-based processing, monitoring connections, infrared diagnostics, and embedded-web configuration. Its 19-inch-wide chassis is designed for rack installation, while four RJ-45 emitter outputs distribute power, communication, and baseband signals for infrared transmission.

Ideal Use Cases

This model is suited to assistive-listening and communication systems that need Wi-Fi or infrared audio delivery. Dante is included for integrating a Dante audio source. Two combination 3-pin XLR and 1/4-inch TRS inputs accept balanced or unbalanced line-level signals as well as balanced or unbalanced microphones. Selectable phantom power is available for microphone connections. The separate Channel A and Channel B headphone outputs provide direct front-panel monitoring of both audio inputs during operation, testing, and setup.

Why Choose This Model

The IR+ Control Center brings signal routing, processing, monitoring, testing, and configuration into one rack-mounted device. A dual infrared LED supports receiver testing, monitoring, and audio-signal testing. For setup and diagnostics without an external program source, the internal 400 Hz test tone can be selected as the audio input. Remote configuration is available through the embedded website, including adjustment of the automatic carrier shut-off timer. That timer can turn off the carrier when no audio is present, allowing its behavior to be matched to the installation.

Installation and Integration

The enclosure measures 19 inches wide by 1.75 inches high by 8.2 inches deep and occupies a single rack unit. It weighs 5.2 pounds. Four RJ-45 emitter-output ports support CAT5e cabling and provide +48 VDC power, RS-485 communication, and baseband signals for infrared transmission. Infrared carrier frequency is selectable between 2.3/2.8 MHz and 3.3/3.8 MHz.

The international desktop power supply accepts 110–240 VAC at 50–60 Hz with a 36 W input rating and provides +48 VDC at 0.75 A through a center-positive output. A rocker power switch with an LED provides local power control and status indication. Operating requirements specify an ambient temperature range of 0–50 degrees Celsius in a non-condensing, non-corrosive atmosphere.

Performance Highlights

The electrical frequency response extends from 40 to 16,000 Hz at +1 dB and -3 dB, with a typical signal-to-noise ratio of 67 dB. Total harmonic distortion is specified at less than 2 percent for the electrical response. Infrared modulation uses FM wideband operation with +50 kHz deviation and 50uS pre-emphasis.

DSP-based audio processing includes selectable compression ratios of 1:1, 1.5:1, or 2:1. High-pass and low-pass filter frequency controls provide additional adjustment of the audio path. The two front-panel 1/4-inch headphone jacks allow Channel A and Channel B to be checked independently without relying solely on the transmitted output.

What Makes It Different

This configuration combines Dante input capability with both Wi-Fi and infrared audio delivery. It also incorporates practical commissioning tools that are built into the control center: a selectable 400 Hz tone, dual infrared test LEDs, independent channel monitoring, embedded-web configuration, and an adjustable no-audio carrier shut-off timer. The four emitter ports carry power, RS-485 communication, and infrared baseband signals over CAT5e connections, reducing the number of separate connections needed between the control center and the infrared transmission system.

Listed approvals include CE, FCC, RoHS, RCM, WEEE, CB Scheme, ISED, and VCCI. The modulator is covered by a two-year warranty, while accessories carry a 90-day warranty.

Final Assessment

The Williams AV IR+ Control Center with Dante is a focused solution for systems requiring assistive-listening or communication audio over Wi-Fi or infrared. Its combination of Dante support, two flexible microphone or line inputs, DSP compression and filtering, selectable carrier frequencies, four powered emitter outputs, web-based configuration, and integrated diagnostic tools provides a clearly defined set of capabilities in a single-rack-unit format.