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LX-IP Synchronous AoIP & MADI Multichannel Sound Card
   Key Workflow: Bridges professional audio software applications to the ultra-low latency, phase-accurate and high precision clock management of AES67 and RAVENNA AoIP networks
   LX-IP provides the perfect gateway from mission critical applications to RAVENNA and AES67 AoIP networks. Its 64 channels, 0.5 ms latency and phase accuracy match all requirements for high density, ultra-low latency on-air or production studio workflows. Hardware-based architecture maintains performance regardless of the computational load of other applications running on the host system.
   LX-IP with MADI optional interface provides a seamless migration path from legacy digital audio to AoIP and provides all MADI features described below.
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At a glance

The LX-IP sound cards provide:

· High channel count, ultra-low latency and phase-accurate audio distribution on synchronous AoIP networks

· Phase-accurate clock synchronization between digital audio and AoIP networks

· Interoperability with traditional digital audio

· Performance & stability independent of PC applications

· Mission critical reliability

· Play/record 64 audio channels between a DAW (Digital Audio Workstation) or automation application and AES67 or RAVENNA synchronous AoIP network

· Play/record 64 channels between a DAW or automation application and digital audio MADI equipment

· Provides zero-latency routing on-board between 2*64 RAVENNA/AES67 channels, 64 DAW channels and (option) 64 MADI channels

· Provides PTP Grand Master clock to synchronous AES67 or RAVENNA AoIP network. This Grand Master can be slaved to WordClock or MADI inputs

· Synchronises RAVENNA/AES67 AoIP streams on external PTP clock. The MADI output and WordClock clocks can be slaved to the external PTP clock

Key features

· 64/64 Record/Play channels on PCIe bus

· 64/64 AES67/RAVENNA I/O channels on each of the two Gigabit Ethernet interfaces

· 64/64 I/O MADI (AES10) optical channels (option)

· Ultra-low sub-millisecond round trip latency

· Fully compliant with AES67 interoperability recommendations, including Unicast SIP support

· Packet size from 128 down to 1 audio sample per RAVENNA packet

· Local clock eligible as PTP Grand Master

· Zero delay embedded routing matrix for AoIP / MADI / PC channels

· Performance maintained regardless of the computational load of applications running on the host system

· Fully configurable through Web user interface and EMBER+ protocol

Configuration

· Bus/Format: PCI Express(R) x1 (compatible x1, x4, x8, x16 slots)

· Size: 111.15 mm x 167.65 mm x 20 mm

· Power requirements (+3.3V/+12V): 0.4 A / 0.12 A

· Operating: temp / humidity (non-condensing): 0°C / +50°C • 5% / 90%

· Storage: temp / humidity (non-condensing): -5°C / +70°C • 0% / 95%

Inputs and Outputs

· Connectors
– 2 Gigabit Ethernet RJ45 ports for RAVENNA I/O (dual port or Primary / Back up mode)
– 1 optical connector for MADI I/O  (Factory option)
– 1 BNC for Word Clock In / Out

· RAVENNA I/O channels: 2 banks of 64/64 I/O (Mono) channels at 44.1 kHz or 48 kHz (64/64 I/O on each Gigabit Ethernet interface)

· RAVENNA packet size: From 128 down to 1 (ultra-low latency profile) audio samples per RAVENNA packet

· AES67 compliance: Full compliance in all respects with AES 67

· Supported audio payload formats: PCM16 / PCM24 / PCM32 / AM824 (PCM24+AES3 channel status)

· PC Record/Play channels: 64/64 simultaneous Record/Play (Mono) channels to/from PC

· MADI (Multichannels Audio Digital Interface) inputs and outputs:
– Optical I/O connector,  64/64 I/O  (Mono) at  48 kHz sampling frequency and  32/32 I/O (Mono) at  96 kHz
– (Factory option)

· Word Clock input or output
– BNC connector, Input or Output position selectable by software.
– Input : TTL , impedance selectable by jumper (75 Ohms / HighZ).
– Output : Max 5 Vpp, 75 Ohms output impedance

· Clock sources:
– PTPv2 (IEEE1588-2008) from network or internal clock or Word Clock or MADI input
– Local clock eligible as GrandMaster PTP
– Local clock precision : better than 10 ppm

· Sampling frequencies:
– From local clock: 44.1 kHz, 48 kHz and 96 kHz (MADI)
– From network or Word Clock:  44.1 kHz, 48 kHz and 96 kHz (MADI)
– From MADI: 44.1 kHz, 48 kHz, 96 kHz

Control and routing

· Control
– HTTP (web pages from embedded server)
– EMBER+

· Routing: Zero latency on-board routing matrix between RAVENNA, PC Rec/Play and optional MADI  channels

Environment

· Latency: Round trip time down to 0.8 ms (excluding IP network)

· Supported operating systems: Windows 10, 8 and 7 32/64bits, Windows server 2003/2008, Linux

· Supported drivers: ASIO, WASAPI / low latency WDM DirectSound, ALSA

Benefits

· Seamless migration to IP: High density, ultra-low latency and phase accurate AoIP / PC / MADI bridge

· Secure content delivery: HW-based permanence of service whatever the applications running on the host PC

· Same latency as Digital audio: Sub-millisecond round trip latency

· Ensure interoperability: LX-IP is fully compliant with triple standards AES67, RAVENNA and MADI (AES10)

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