Adtec RD-70 User Manual page 50

TS - Transport Stream - A stream of transport packets that contain audio, video and data
belonging to one (SPTS, single program transport stream, also known as SCPC.) or several
programs (MPTS, multiple program transport stream, also known as MCPC.).
PAT - Program Association Table. This MPEG-2 table lists all the programs contained in the
transport stream and shows the PID value for the PMT associated with each program. The
PAT is always found on PID 0x0000.
PMT - Program Map Table. This MPEG-2 table specifies PID values for components of
programs.
PID - Packet Identifier. This unique integer value identifies elements in the transport stream
such as tables, data, or the audio for a specific program.
Program / Service / Channel - A combination of one or more elements (video, audio or data)
defined by a PMT.
Summary:
Service Filtering allows an MPTS from the input to be turned into an SPTS or program
reduced MPTS on a given output. This is helpful in service turn around applications where
all programs are not desired for re-transmission. An example of 5 MPTS to smaller MPTS
outputs is shown below.
5 Service to 2 ASI Service Filtering, multi-service filter
The Adtec RD-70 also has the ability to route Inputs to Outputs, such as route ASI Input to
IP Output and/or RF Input to ASI Output. The RD-70 does ​ n ot ​ support multiplexing of the
inputs. Each IP destination also has unique filtering capabilities. A block diagram of the
input routing and filtering is shown below.