CC Control and Clock (CC) Module

Control and Clock (CC) Module

Function

The CC module performs baseband unit control management and Ethernet switching, and provides the system clock. It provides the following functions:
 

• Implements the Ethernet switching function, switching service data flow and control data flow within the system.
• Implements Abis/Iub/S1/X2 interface protocol processing.
• Monitors the control and maintenance of the base station system, and provides the LMT interface.
• Performs software version management and programmable device management, and supports local and remote software upgrade.
• Monitors the operating status of each board in the system.
• Synchronizes with external reference clocks, including the IEEE1588 clock, GPS clock, and the clocks (2 Mbits and 2 MHz) provided by the BITS. The CC board can be configured as needed.
• Generates and transmits clock information as needed.
• Provides GPS signal interfaces and manages GPS receivers.
• Provides the unified reference clock for system operation and maintenance. The real-time clock can be calibrated.
• Reads hardware management information, including rack number, back-end type, slot number, board type, board version, and board function configuration information.
• Supports active/standby switchover.
• Provides maintenance functions for the MicroTCA module. The CC16B/CC17B/CCE1 provides the following functions:
• Supports Ethernet clock synchronization.
• Provides USB interfaces for software upgrade. There are four types of CC boards. For the performance specifications

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