beautypg.com

6 fec and turbo, Introduction, Coding – Comtech EF Data CIM-300L User Manual

Page 125: Chapter 6. fec and turbo, 1 introduction, 2 coding

background image

99

Chapter 6.

FEC and Turbo

FEC and Turbo

99

Coding 99

Turbo Product Codec (Hardware Option) 100

Uncoded Operation (No FEC)

103

6.1 I

NTRODUCTION

The CiM-300 is equipped with several Forward Error Correction (FEC) encoders and
decoders:

!

Viterbi

!

Sequential

!

Reed-Solomon (Concatenated per Intelsat)

!

Reed-Solomon (Concatenated per Closed Network)

!

Trellis (FAST option)

!

Turbo Codec

!

Uncoded

The CiM-300 can be fitted with a Turbo Product Codec. Turbo Product Coding is small
SIMM module that can be fitted to the unit at time of manufacturing.

6.2 C

ODING

The CiM-300L can have any of the following configurations:

!

Basic CiM-300L (Sequential or Viterbi Decoder

!

FAST options (Sequential or Viterbi Decoder)

!

FAST options with Reed-Solomon hardware (Sequential or Viterbi Decoder)

Turbo hardware.