The H802SCUN boardis a Super Control Unit Board. It is the core of the system control and
service switching and aggregation. The H802SCUN board can also function as the management
and control core of the integrated network management system (NMS). It communicates with
service boards about the key management and control information through the master/slave serial
port and inband GE/10GE channel. In this manner, the H802SCUN board configures, manages,
and controls the device, and also implements the simple route protocol functions.