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OFEC - what does it mean?

SA1229
Level 1
Level 1

I often see the terms oFEC and OFEC, and as far as I can tell it refers to Open FEC, typically in the context of convolution and/or turbo codes.  What exactly is OFEC and oFEC?  Is it a standard?   Note that I have been to OpenFEC.org, and I don't think it's related.   

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check the standards document : (FlexO oFEC definition)

 

http://openroadm.org/download.html

 

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balaji.bandi
Hall of Fame
Hall of Fame

where do you see the term, what context? different observation based on the context, can you refer the document which you referring, is this wireless ? any URL ?

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Hi - Yes, specifically mentioned in the Cisco 400G Digital Coherent Optics QSFP-DD Optical Modules Data Sheet as a form of forward error correction.  From what I can tell it's a convolutional code or turbo code, but I am more interested in why they call it OFEC.  Should I be looking for an Open FEC organization, or is this just a term for "any old non-proprietary FEC"? 

Cisco Transceiver Modules - Cisco 400G Digital Coherent Optics QSFP-DD Optical Modules Data Sheet - Cisco

 

 

check the standards document : (FlexO oFEC definition)

 

http://openroadm.org/download.html

 

BB

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Thank you - This is very close to answering my question.   

ITU-T G.709.3/Y.1331.3, Appendix V.1 Open FEC Codes: Specifications and basic properties

This seems to be an explanation, if not the actual spec itself, which is peculiar existing as an appendix.    

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