Application

The TT4021 redundancy controller provides 1+1 redundancy switching combined with the advanced error detection and monitoring capabilities of the TT4000 series transport stream monitoring family.

The need for real-time monitoring and analysis of MPEG-2 networks has dramatically increased along with the increased complexity of these networks. Very high system availability is crucial for service providers.

Business Benefits

• Rather than monitoring the health of individual hardware units, the TT4021 redundancy controller actually monitors the incoming transport stream for health, giving a more reliable and robust redundancy switch decision mechanism
  
• The TT4021 has a wide variety of input options, making it the most versatile 1+1 redundancy controller with built-in analyzer available
  
• The extensive range negates the need for external converters making the unit even more cost-effective and compact

Key Features

• DVB ASI and other input options
•  Robust relay based switching: signal integrity independent of power supply
• Spare input source is checked before switching
• 2 x 1 real-time TS monitor switching
• User-friendly web interface
• Error detection according to ETR290 specification
• PSI/SI (DVB) and PSIP (ATSC) table analysis including MIP detection

Options

Input options:

• ASI
  
• ATM (34, 45, 155 Mbps)
  
• G.703 (34, 45 Mbps)
  
• SMPTE 310
  
• QAM
  
• QPSK