Table of Contents - G.709.5 (2024) Amd. 1 (08/2024) -

1	Scope
2	References
3	Definitions
	3.1	Terms defined elsewhere
	3.2	Terms defined in this Recommendation
4	Abbreviations and acronyms
5	Conventions
6	Introduction and applications
7	Structure and processes
	7.1	Basic signal structure
	7.2	Processing and information flow
8	FlexO frame
9	Overhead
	9.1	Alignment markers
	9.2	FlexO-1-RS alignment markers
	9.3	FlexO-2-RS alignment markers
	9.4	FlexO-4-RS alignment markers
	9.5	FlexO-8-RS alignment markers
10	FlexO mapping procedures
11	100G FlexO-1-RS interface
	11.1	Frame structure
	11.2	Bit rate and frame periods
	11.3	Scrambling
	11.4	Forward error correction (FEC)
	11.5	FOIC1.k-RS interface
12	200G FlexO-2-RS interface
	12.1	Frame structure
	12.2	Bit rate and frame periods
	12.3	Scrambling
	12.4	Forward error correction (FEC)
	12.5	FOIC2.k-RS interface
13	400G FlexO-4-RS interface
	13.1	Frame structure
	13.2	Bit rate and frame periods
	13.3	Scrambling
	13.4	Forward error correction (FEC)
	Page
	13.5	FOIC4.k-RS interface
14	800G FlexO-8-RS interface
	14.1	Frame structure
	14.2	Bit rate and frame periods
	14.3	Scrambling
	14.4	Forward error correction (FEC)
	14.5	FOIC8.k-RS interface
Annex A – Forward error correction for FlexO-x-RS using 10-bit RS(544,514) codecs
	A.1	Generic processing and common code structure
	A.2	FlexO-1-RS FEC codeword adaptation
	A.3	FlexO-2-RS and FlexO-4-RS FEC codeword adaptation
	A.4	FlexO-8-RS FEC codeword adaptation
Bibliography