原创 Eight HD channels (JPEG 2000-encoded) mapped onto

The VS901-Tx-27 card

Network/VPG has created a solution to incorporate HD signals through JPEG 2000 compression over SDTI, using existing 270Mbps networks. Each card in the VS901-TE-27 encoder / VS901-TD-27 pair:

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• Occupies a single slot in the Ventura chassis. Since a fully populated Ventura chassis can house up to 10 cards and 2 power supplies, this represents a cost saving solution for limited-space applications.
  
• Delivers visually lossless compression to a 6:1 compression ratio
  
  
• Input can be HD-SDI or SDI/ASI; input that is not high definition bypasses JPEG 2000 compression
  
  
• Supports all HD video-framing formats at 1485Mbps and 1483.52Mbps.
  
  
• Supports auto-sensing, so that SDI/ASI signals delivered as encoder input will bypass JPEG 2000 compression and decompression.
  
  
• Supports multiplexing/demultiplexing of audio in an HD transport, or local AES embedding by the VS901 encoder.
  
  
• Supports a variety of SFP optics to meet varying optical requirements.

The VS811-Sx-48 card

The VS811-S is another key component of the Ventura JPEG 2000 solution set, because it can multiplex eight HD signals that have been compressed by the VS901-TE-27 and transport them over an OC-48 or STM-16 network tributary. This 8-channel SDI/ASI/ SONET/SDH multiplexer/ demultiplexer is a high quality TDM solution for existing SONET/SDH OC48c or STM16 transport infrastructures. Each card in the VS811-SM-48 multiplexer / VS811-SD-48 de-multiplexer pair:

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• Occupies a single slot in the Ventura chassis. Since a fully populated Ventura chassis can house up to 10 cards and 2 power supplies, this represents a cost saving solution for limited-space applications—up to 80 circuits can be provisioned in a single chassis.
  
• Manages SONET/SDH pointer adjustments.
  
• Can carry format-independent inputs: SDI, SDTI and DVB-ASI.
  
• Supports channel-level enable/disable control and selectable pattern generators.
  
• Removes timing and alignment jitter from the 270Mbps optical signal (at the demux output).
  
• Supports SFP optics in 1310, 1550 and any ITU CWDM or DWDM wavelengths.

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