Remultiplexing and PSI/SI Editing
This Application describes how to add and remove services, components and tables in order to create or modify a Transport Stream for the purpose of regional/local adaptation. The T-VIPS CP525 cMux Remultiplexer provides a flexible and easy to operate toolbox with powerful features for service and component filtering, multiplexing and PSI/SI/PSIP table editing and playout options to generate ATSC or DVB Transport Streams.
- Especially designed for regional head-ends, CP525 provides DTT operators a cost-effective solution for local content insertion, efficient bit-rate management and SFN adaptation.
- By generating the regional multiplexes close to where local content is created and transmitted, the operator saves the extra bandwidth needed to transmit all channels from a central site.
- Flexible Transport Stream input and output interfacing with support for SMPTE 310M, ASI, IP/Ethernet and SONET/SDH networks eliminating the need for additional network adapters.
- Built in PSI/SI/PSIP editing feature provide operators with precise means for customisation of Transport Stream without requiring an external PSI/SI playout management system.
In the figure above Transport Streams from different providers are sent to the CP525 for remultiplexing. Services, components and PIDs can be added and/or removed from the outgoing TS with automatic regeneration of PSI/SI table. The PSI/SI editor can be used to replace a Network Information Table and modify the SDT. Multiple output TS copies provide redundancy throughout the distribution network. In addition, a copy of the TS may be sent over IP to a TNS546 for 24/7, continuous monitoring of the output transport stream, services and components enabling fast fault detection and diagnostics.