Digigram LX-IP Synchronous AoIP & MADI Multichannel Sound Card

ITEM #: DGR-LX-IP MFG #: LX-IP

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LX-IP - Overview

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

Digigram 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.

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

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)

  • 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
     

  • Specifications:

    • 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
     

Required Accessories

LX-IP - Required Accessories

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