The ISU2 is a universal IF board that supports the Integrated IP microwave mode and SDH radio mode at the same time. The ISU2 uses the DC-I power distribution mode.
1- Receives and transmits one channel of IF signal.
2- l Provides a management channel to the ODU.
3- Supplies the required -48 V power to the ODU.
4- l Integrated IP microwave & SDH microwave.
5- Service categories in Integrated IP microwave mode l Native E1 + Ethernet l Native STM-1 + Ethernet
6- Service categories in SDH microwave model STM-1 l 2xSTM-1.
7- Supported only in Integrated IP microwave mode with native TDM services being E1 services.
8- Link-level protection 1+1 HSB/FD/SD protection Supported N+1 protection Supported LAG protection at air interfaces Supported PLA/EPLA Supported NOTE EPLA is available only when the ISU2 works with the CSHU/CSHUA boards.
9- Supported ATPC & Ethernet frame header compression & 1+1 HSB/FD/SD protection &
N+1 protection & LAG protection at air interfaces & PLA/EPLA & LAG