Technology
Computer networking technologies are used every day around the globe in some fashion. Standardized physical connections and protocols have made it possible to connect our computers, phones, printers, cameras, TV’s, and media players to local area and wide-area networks (LAN/WAN). This ability to easily connect multiple devices and move data between them is at the core of the SVSi product offering. SVSi introduced the video over LAN technology (voLANte) product line 3 years ago to the professional A/V community and has been integrated into small and large A/V projects ever since.
SVSi’s Networked AV Solution is one of the most proven and cost-effective solutions on the market today. Utilizing standard TCP/IP networking to stream video and audio sources to any other location on your network via Ethernet, installation is straightforward and takes advantage of your existing networking infrastructure and technician skills. Imagine the flexibility to transmit your video and image sources anywhere on campus or corporate headquarters leveraging those standards, components and wiring already in place.
Typical Applications
One to One Network Solution
One to Many Network Solution
In small offices or simple applications, the SVSI video over LAN can be simply deployed as a parallel network where existing switches and infrastructure might not be capable of carrying live video. A single CAT5e cable running gigabit Ethernet between an encoder and decoder will keep video separate and avoid impacting your existing small office network. The SVSi encoder has multiple LAN ports allowing multicast video traffic to be assigned to one port while the encoder and decoder can still be reached via the existing LAN for command, control and configuration.
One of the most popular applications is distribution of a single source to multiple displays throughout a conference center or campus such as overflow coverage of a live event or an in-house news and announcement system. By generating a single video stream that multiple receivers can request by subscribing, network capacity isn’t impacted even with a large number of destinations. Network segments without a display don’t receive the streaming traffic minimizing utilized bandwidth.
Many to One Network Solution
Many to Many Network Solution
In certain command and control situations such as battlefield simulations, emergency management exercises, rocket or missile range testing, or medical teaching hospitals, it is often advantageous to have multiple streams available on the network that a monitoring station or student can select. Again, with IGMP and/or vlan configurations, video streams that aren’t being watched don’t have to consume bandwidth bogging down your network performance yet they remain available to any decoder that wishes to view the stream.
The most flexible, robust and cost-effective applications can act as a virtual multi-channel video switch routing any source to any destination monitor and to multiple monitors if needed. This is ideal for training centers, hotel and conference centers, corporate campuses, educational facilities from large high schools, colleges to major universities. Live events can be routed to designated overflow rooms while simultaneously supporting multiple unrelated sources.
For the AV Professional
The SVSi encoder units utilize a standard DVI-I interface which supports Component, RGB, RGBHV, HDMI, DVI-D, DVI-I and VGA analog inputs with appropriate passive adapter cables. This flexibility allows quick and flexible installation of encoders and decoders with almost any source imaginable – PC, workstations, blu-ray player, satellite and cable receivers, live HD cameras, video switching consoles, etc. Audio can be embedded on the digital DVI-I interface or supplied through a line-in jack on the encoder and is software-selectable.
Resolutions that can be encoded include video up to Full HD (1920 x 1080p) and PC graphics up to 1600×1200.
Decoders receive the data stream from the IP network and convert the video back to one of the standard outputs for delivery to a display including flat panel monitors, VGA projectors, HD displays, CRT, etc. A variety of display technologies can be mixed displaying the same stream taking full advantage of legacy displays where possible.
Configuration and control of SVSI encoders and decoders is performed using our Conductor Lite software available for download. Using Conductor, decoders are instructed which encoded stream to subscribe and display, network and user settings can be modified and network status checks can be performed. Encoders and decoders can also be controlled via TCP/IP network commands or serial port commands allowing ease of integration into existing building and room control systems.
For the IT Professional
SVSi encoders, decoders, DVR devices and processors are like any other host on your existing gigabit Ethernet. Encoders generate a TCP/IP data stream with a bandwidth configurable between 20Mbps and 100Mbps as your display quality and network bandwidth needs dictate. Each encoder includes a built-in 3-port switch that is software-configurable to select which port(s) the video traffic will use and which ports are for command and control only. This allows easy daisy-chaining of units and the creation of a separate video network when certain applications call for it.
By utilizing multicast video streams, encoders generate a single stream that reaches the first network switch. With IGMP enabled in the switch, the stream goes no further than the first switch until it is requested by a subscribing decoder. A single stream then leaves the switch on the necessary port. Even if there are intermediate switches enroute to multiple destination displays, only a single
stream is passed along the inter-switch links, preserving your network bandwidth and performance. When no more displays are viewing the stream, the subscriptions can be dropped and the stream will no longer proceed beyond the initial switch.
IGMP Enabled Network Solution
Decoders receive the data stream from the IP network and convert the video back to one of the standard outputs for delivery to a display including flat panel monitors, VGA projectors, HD displays, CRT, etc. A variety of display technologies can be mixed displaying the same stream taking full advantage of legacy displays where possible.
Configuration and control of SVSI encoders and decoders is performed using our Conductor Lite software available for download. Using Conductor, decoders are instructed which encoded stream to subscribe and display, network and user settings can be modified and network status checks can be performed. Encoders and decoders can also be controlled via TCP/IP network commands or serial port commands allowing ease of integration into existing building and room control systems.