Summary

Amendment 1 to Recommendation ITU-T G.9959 (2012) contains:

•            The relaxation of the transmitter frequency separation tolerance level from ±10% to ±20%, for all data rates.

•            The addition of a Logical Link Control (LLC) layer, in new clause 9.

•            The addition of a Segmentation and Reassembly (SAR) adaptation layer, in new clause 10.