Overview
Telos Alliance, Mixed Signal xNode2 AC Power POE
The Telos Alliance® xNode2 is the next generation of the broadcast industry’s most trusted family of AoIP interfaces. As the successor to the venerable and proven xNode, xNode2 carries on as the ultimate “universal translator” between external analog, microphone, and AES/EBU devices and Livewire+ AES67 AoIP networks.
The Mixed-Signal xNode2 is your utility player; perfect for places that require a mix of different audio I/O types. It provides 1 mic input, 3 analog line inputs, 3 analog line outputs, 1 digital AES3 input, 1 digital AES3 output, and 2 GPIO ports – truly a “jack of all trades.”
xNode2 retains the same rugged, fanless, and space-efficient half-rack form factor of its predecessor, while its redesigned internal hardware serves as a foundation for meeting ever-evolving industry technical requirements. Among these are dual 1000MB network interfaces to provide compliance with SMPTE 2022-7 (Seamless Protection Switching of RTP Datagrams), allowing streaming to separate network branches for audio redundancy and automatic failover to the available RTP stream.
xNode2 boasts a high-resolution, multi-function LCD color front panel display, while redundant power is provided by a combination of AC and PoE+ (IEEE 8023at)
Features
- Fanless design with cast-aluminum heat-sinks is completely silent in-studio.
- Front-panel heat sinks are cooled by ambient air, not “rack air,” eliminating overheating worries.
- xNode2s are “universal translators” that support a huge installed base of Livewire+hardware as well as audio streams from other AES67-compliant devices.
- High-resolution front-panel multi-function LCD color display meters inputs and outputs or GPIO status and gives software and other status information.
- Power-efficient: xNodes use just 16 Watts each.
- Exclusive redundant power plan uses AC and Power over Ethernet plus (IEEE 802.3at) supplied by compliant Ethernet switches. Two front-panel LED glow when AC mains power is used and when PoE+ is used.
- SMPTE 2022-7, Seamless Protection Switching of RTP Datagrams: Dual NICs allow you to stream to separate network branches for RTP audio redundancy. Automatic failover to the available RTP stream.
- Built-in Syslog server with configurable event filter and external logging.
- Synchronize your AES master clock to a designated xNode AES/EBU input to keep all of your AES streams synchronized to the house clock.
- xNode2s use premium components, including rugged cast aluminum faceplates and heat sinks, high-resolution LCD displays, bulletproof power supplies designed for high availability telecom applications, and studio-quality SRCs with recording-studio specs.
- I/O connections via industry-standard RJ-45 audio connectors or high-density DB-25 connections, both available prefabricated and ready to attach in seconds.
- Versatile mounting options: Use freestanding, rack singly or side-by-side in 1 RU, or wall-mount using an optional surface-mount kit.
- Analog xNode2 inputs can be configured to supply four stereo audio channels or eight true mono channels. Outputs support the same variety of selections, easily selectable in software via the built-in web interface.
- On the Analog, AES/EBU, Mixed Signal, and Microphone xNodes, a fully configurable mixing matrix allows for mixing of both physical and network inputs, stream conversion, and a multitude of other unique solutions.
- SAP Support
In Depth
xNode2s give you an easy way to add non-networked audio devices to your studio network. They pack a lot of I/O into a very small space. And xNode2s are so simple to set up, they nearly configure themselves. All xNode2s feature a high-resolution LCD color front panel display and two “soft” buttons to provide status information and assist with initial setup, and discrete LEDs that give at-a-glance information about the xNode2’s power configuration. To ensure ultra-reliable network operations and extremely low delay, xNode2s run Linux on an embedded processor, and a built-in web server in each xNode2 gives you remote configuration and control—in an intuitive, easy-to-understand manner—using any standard web browser.
xNode2s are loaded with features designed to ensure the uptime of your network. Dual Ethernet ports can provide redundant RTP streaming to separate network segments. Redundant power capability with automatic switchover enables xNode2s to run on house mains or PoE+ (Power over Ethernet Plus), letting the network switch itself supply power, and enabling easy single-cable setup in places where AC power isn’t practical. Built-in Syslog servers with a configurable event filter are provided.
The xNode2 custom Matrix view or Wire view feature is one of the most flexible and capable virtual mixers available. It lets users mix physical inputs (like mics and playback devices) with digital network sources (like stream inputs) to a single output. With the xNode2 custom feature, broadcasters can bypass the studio console during automated dayparts and send on-air mixes straight to the transmitter thus simplifying audio workflows. This one-of-a-kind solution offers the power and flexibility of a big studio mixer switching system in a compact ½ RU device!
xNode2s are convenient, too. For example, a Microphone xNode2 placed in a studio can take audio from microphones and also provide outputs to associated studio monitors and headphones. An xNode2 in the rack room can collect audio from network feeds, codecs and other shared sources for system-wide use while providing handy outputs for audio processors and other terminal-room gear. xNode2s are versatile and cost-efficient. Since they’re half the size of other AoIP interfaces, they cost less. And you can mix-and-match I/O as needed.
Choose between analog, AES/EBU, or Mic-level inputs, without paying for ports you won’t use. High-density GPIO xNode2s let you easily provide logic and control for your audio source devices.
xNode2s are also fanless, so you can tuck one anywhere you need I/O without worrying about cooling fans or heat—they consume only 16 Watts of power! Two xNode2s fit side-by-side in a single rack space using the included rack-mount kit. Or, mount them to walls, ceilings, or under countertops, with an optional surface-mount kit.
Specifications / Documents
Microphone Preamplifiers
- Source Impedance: 150 Ohms
- Input Impedance: 4k Ohms minimum, balanced
- Input type: Line or Microphone
- Microphone PreAmp Gain: Adjustable, 14 dB to 68 dB
- Phantom power: +48VDC, switchable
Analog Line Inputs
- Input Impedance: >40k Ohms, balanced
- Nominal Input Range: +4 dBu
- Input Headroom: 20 dB above nominal input
Analog Line Outputs
- Output Source Impedance: <50 Ohms balanced
- Output Load Impedance: 600 Ohms, minimum
- Nominal Output Level: +4 dBu
- Maximum Output Level: +24 dBu
Digital Audio Inputs and Outputs
- Reference Level: +4 dBu (-20 dB FSD)
- Impedance: 110 Ohm, balanced
- Signal Format: AES3 (AES/EBU)
- AES3 Input Compliance: 24-bit with sample rate conversion
- AES3 Output Compliance: 24-bit
- Digital Reference: Internal (network timebase) or external reference 48 kHz, +/- 2 ppm
- Internal Sampling Rate: 48 kHz
- Input Sample Rate: 32 kHz to 192kHz
- Output Sample Rate: 44.1 kHz or 48kHz
- A/D Conversions: 24-bit, Delta-Sigma, 256x oversampling
- D/A Conversions: 24-bit, Delta-Sigma, 256x oversampling
Frequency Response
- Any Input to Any Output: +/- 0.5 dB, 20 Hz to 20 kHz
Latency
- Analog Input to Analog Output, 4.5ms including network, converters, and mixing process
- Digital Input to Digital Output, 3.5ms including network mixing engine (ASRC off)
Dynamic Range
- Analog Inputs to Analog Outputs 104dB referenced to 0dBFs, 111dB A-weighted
- Analog Inputs to Digital Outputs 110dB referenced to 0dBFs, 113dB A-weighted
- Digital Inputs to Analog Outputs 110dB referenced to 0dBFs, 115dB A-weighted
- Digital Inputs to Digital Outputs 126dB
Equivalent Input Noise
- Microphone Preamp: -130 dBu, 150 Ohm source, reference -50 dBu input level
Total Harmonic Distortion + Noise
- Mic Pre Input to Analog Output: < 0.005%, 1 kHz, -36dBu input, +18dBu output
- Analog Input to Analog Output: < 0.005%, 1 kHz, +18dBu input, +18dBu output
- Analog Input to Digital Output: < 0.004%, 1 kHz, +18dBu input, -6dBFs output
- Digital Input to Analog Output: < 0.004%, 1 kHz, -6dBFs input, +18dBu output
- Digital Input to Digital Output: < 0.0003%, 1 kHz, 0dBFs
Crosstalk Isolation, Stereo Separation and CMRR
- Analog Line Stereo Separation: < -90dB, 20Hz to 20kHz
- Analog Line Input CMRR: < - 85dB, 20Hz to 20kHz
- Microphone Input CMRR: < -70 dB , 20 Hz to 20 kHz
Power Supply AC Input
- Auto-Ranging Supply, 95VAC to 260 VAC, 50Hz to 60Hz, IEC Receptacle, Power
Consumption: 16 Watts
Operating Temperatures
- 0 degree C to +40 degree C, <90% humidity, no condensation
Dimensions
- 8.5” (22 cm) wide; two may be mounted side-by-side in a standard 1RU rack
space; 1.72” (4.4 cm) height, 11.75” (30 cm) depth
