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User Manual
Chapter 1. Overview
1.2.
RTM-3300 OVERVIEW
1.2.1.
RTM-3300 Architecture
The RTM-3300 internally includes a PC Host and one DVB Mux Board. It consists of the
following functional blocks (see Figure 1-6):
DVB Mux Boards
The DVB Mux Boards perform the actual Multiplexing operations. It has 10 DVB ASI inputs
and 2 DVB ASI outputs. The two outputs are identical and contain the same output transport
stream.
Figure 1-6:
RTM-3300 Functional Block Diagram
Input Block
ASI/SPI
FIFO
ASI/SPI
Output Block
FIFO
ASI/SPI
Initial Input Process
4 - 10 Inputs
ASI/SPI
FIFO
DSP
Block
FIFO
ASI/SPI
Embedded
Scrambler
PCI
PCI Block
Block
Front
Panel
Local
Terminal
RS-232
TCP-IP
Configuration
files managment
PC Host
A DVB Mux Board has four main functional blocks: A Multiplexing Block, DSP Block, Output
Block and PCI Block.
Page 1-8
1.
Multiplexing Block
The Multiplexing Block manages the input transport streams. The Multiplexing Block
performs on the transport inputs a delineation analyzing and filtering operations such as
stuffing drop and 188/204 bytes packet length recognition.
The resulting transport streams are forwarded to the FIFOs.
2.
DSP Block
The DSP Block takes the transport streams from the FIFOs according to a pre-configured
discipline (such as a weighted round robin) and builds an output transport stream. During
the process, the DSP forms many manipulations on the packets, such as a PID remapping and PCR re-stamping. The DSP Block sends the resulting data to the Output
Block.
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