Huawei’s Microwave Transmission Node (OptiX RTN 980)

1.) Service Interface Unit:
– Receives/transmits TDM E1 signals
– Demultiplexes ATM services from ATM/IMA E1 signals
– Supports various signal types, including STM-1/4 and FE/GE
– Encapsulates Ethernet services into SDH or E1 signals
– Performs E1/ATM/Ethernet service emulation based on PWE3

2.) Timeslot Cross-Connect Unit:
– Provides cross-connect functionality
– Efficiently grooms TDM services

3.) Packet Switching Unit:
– Processes and forwards Ethernet services and packets
– Handles MPLS labels and packet forwarding
– Manages PW labels and packet routing

4.) IF Unit:
– Maps service signals to microwave frame signals and vice versa
– Converts microwave frame signals to IF analog signals
– Facilitates O&M channel between IDU and ODU
– Supports Forward Error Correction (FEC)

5.) Control Unit:
– Facilitates system communications and control
– Manages system configuration and monitoring
– Collects alarms and monitors performance
– Processes overheads for efficient operation

6.) Clock Unit:
– Traces clock source signal and provides system clock signals
– Supports external clock input/output
– Provides time synchronization function

7.) Auxiliary Interface Unit:
– Enables orderwire interface for communication
– Supports synchronous/asynchronous data interface
– Provides external alarm input/output interface

8.) Power Unit:
– Accesses -48 V/-60 V DC power supply
– Provides power to IDU and -48 V DC power to ODU

9.) Fan Unit:
– Ensures effective air cooling for the IDU

10.) ODU (Outdoor Unit):
– Converts IF signals to RF signals
– Amplifies RF signals
– Supports frequency up/down conversion
– Enables wireless transmission/reception of RF signals
– Facilitates antenna connection and alignment