75th IETF – Stockholm, Sweden, July 2009
Page - 6
Optical Interfaces and Signals
•Optical
Tributary Signal (G.959.1)
–"a single channel signal that is placed within an optical channel for transport across the optical network"
–Different classes of optical tributary signals are defined based on modulation (line coding) and bit rate
range.
–From G.698.2 to fully specify an optical tributary signal one must specify the exact bit rate.
•Single
channel interfaces to DWDM networks
–ITU-T
Recommendations G.698.1 & G.698.2
–Uses Optical
Tributary Signal from G.959.1.