DUETE-2/DuetD-2 USER MANUAL
Visionary, Network Audio Video
INTRODUCTION
Visionary Solutions 4K UHD over IP cinema quality, ultra-low latency [~1 frame - visually lossless] encoder and decoder bypass the
constraints of traditional switch matrix distribution systems by harnessing the flexibility and scalability of converged IP networks.
With the growing demand for 4K UHD video, professional AV designers and IT directors–in an increasingly converged AV/IT
environment–can use Visionary Solutions products as an alternative to conventional distribution systems.
Visionary Solutions brings the power of Dante™ enabled connectivity to video. For Installed AV professionals, the impact of Dante™
connectivity has been a game-changer, enabling fast, easy, and economical digital networking of multi-channel audio over IP.
Wouldn’t it be great if there was a Dante™ solution for video? Introducing PacketAV Duet-2 from Visionary Solutions.
PacketAV Duet-2 is nothing short of a paradigm shift for networked AV. True convergence is finally here; a single platform to
support Dante™ and Video over IP. Integrate 4K UHD video over IP into your Dante™ enabled audio network and bypass the
constraints of traditional switch matrix systems by harnessing the flexibility and scalability of converged IP networks.
Visionary’s PackeTV® and PacketAV® products can be deployed on any industry standard IP network. They can be used on existing
enterprise IP networks or on a physically separate parallel network [private network] to offload traffic, using the same network
protocols, methods, and devices but without intermingling video traffic with data or voice, and with equal ease of installation.
An encoder is connected to an [HDMI] AV source signal [a camera, STB, media player, PC or server, BluRay player, or digital signage
player, etc.]. The signal is converted into a packetized network stream that is compatible with off-the-shelf IGMP enabled Gigabit
Ethernet (GbE) switches (Jumbo Frames enabled). Using an existing CAT 5/6 infrastructure, users can connect CAT 5/6 to any decoder
anywhere on the same GbE network. The decoder takes the IP packets received over CAT 5/6 cables, converts them back into an
HDMI signal connecting directly
to a display, delivering visually lossless video along with USB over IP (KVM) and RS-232 over IP
controls. A signal from any encoder can be sent to any decoder on the same network. The signals can easily be controlled with our
Vision Lite software to create different outputs on the display side, including video wall or matrix switching.
NETWORK AV INFRASTRUCTURE PREREQUISITES
This section is intended to provide a basic understanding of applicable networking technologies and the infrastructure requirements
needed for a successful Visionary Solutions Duet-2 system installation, and to ensure a rapid deployment and seamless integration.
Many network issues can be minimized or solved before they occur with appropriate knowledge and proper planning.
The Duet-2 will work with most non-blocking, IGMP with IGMP Snooping, 8K or better Jumbo Packet 1GbE network switches. At
least one layer-3 switch with IGMP-query capability is required. For PIM (multicast routing) of Duet-2 video streams, the network
switches would need to be capable of PIM (Sparse, Dense, or Sparse-Dense).
Do not connect any encoders or decoders to a switch until the switch is configured for multicasting and IGMP Snooping is enabled.
Check with your switch manufacturer for the default configuration settings.
NETWORK PROTOCOLS
All data on a network is encapsulated in packets, according to the TCP/IP protocols. Data packets are routed through the network to
their destination(s) by switches using information in the header of IP packets. Transmission can be unicast or multicast. Unicast
transmissions are point-to-point, from a single source to a single destination. Multicast transmissions originate from a single device
and are received by a group of devices on the network, according to the Internet Group Management Protocol (IGMP). Multicast
transmission is ideal for bandwidth-intensive application such as media distribution as it
allows for efficient use of network
bandwidth. Only a single copy of the data is distributed to multiple destinations. On the other hand, unicast distribution of media to
multiple destinations is an extremely inefficient use of network bandwidth because duplicate copies of the data are sent, point-to-
point, from the source to each destination. Duet-2 devices make use of the multicast protocol.
More information concerning IGMP may be found here at:
http://docwiki.cisco.com/wiki/Internet_Protocol_Multicast#Internet_Group_Management_Protocol
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