Figure A-16. Reed-Solomon Encoder Section Block Diagram - Comtech EF Data SLM-3650 Installation And Operation Manual

SLM-3650 Satellite Modem
Options
A.2.1.2 Theory of Operation
The Reed-Solomon Codec works in conjunction with the interface card to provide
concatenated convolutional encoding and decoding.
The two main sections of the Codec are:
•
Reed-Solomon encoder (Section A.2.1.3)
•
Reed-Solomon decoder (Section A.2.1.4)
A.2.2 Reed-Solomon Encoder
A block diagram of the Reed-Solomon encoder section is shown in Figure A-16.
The Reed-Solomon encoder section includes the following circuits:
•
Synchronous Scrambler
•
Reed-Solomon Codec (encoder section)
•
Serial/Parallel Converter
•
RAM Interleaver
•
Parallel/Serial Converter
JP2
MUXDATA
(SERIAL)
SYNCHRONOUS
SCRAMBLER
JP2
MUXCLK
U4

Figure A-16. Reed-Solomon Encoder Section Block Diagram

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
SERIAL
RS CODEC
TO PARALLEL
(ENCODER SECTION)
CONVERTER
U3
RS TIMING CONTROLLER
A–63
UNIQUE WORD RAM
INSERTION INTERLEAVER
U4 U1
INTERLEAVER
ADDRESS
GENERATOR
U4
U4
Revision 3
MN/SLM3650.IOM
JP2
PARALLEL
TXSATDAT
TO SERIAL
CONVERTER
TXSATCLK
U4
JP2