ODU1 Definition
Original tier of the hierarchy to transport 2.5G signals
•ODU1 = 2.498775Gbit/s
•OTU1 = 2 666057Gbit/s
OTU1 can be used as a higher order ODU to
carry lower order ODU0s
•Divided into 2x1.25G tributary
slots:
•ODU0 maps into 1 tributary
slot
OPU1 can carry:
•STS-48
•STM-16
•FC-200
ODU2 Definition
Original tier of the hierarchy to transport
10G signals
•ODU2 = 10.037273Gbit/s
•OTU2 = 10 709224Gbit/s
10.709224Gbit/s
Can be used as a higher order ODU to carry lower order
ODUs
•Divided into 4´2.5G or 8´1.25G tributary slots:
•ODU0 maps into 1 tributary
slot
•ODU1 maps into 1 2.5G or 2 1.25G
tributary slot(s) OPU2 can carry:
•STS-192
•STM-64
