The GSM Transmission & Timing & Management Unit for BBU
Functions
1- Controls and manages the base station
2- Supports fault management system, configuration management system, performance
management system, and security management system
3- Monitors the fans and power modules
4- Provides and manages the clock source of the base station in centralized mode
5- Provides the clock output for test
6- Provides the ETH port for maintenance on the OM system
7- Supports transmission through four E1s
8- Provides CPRI ports for communication between the BBU and the RFUs
9- The GTMUb supports interconnected BBUs.
10- Four IDX2 ports on the backplane of the GTMUb can achieve the function of baseband
resource pool backup.
Thanks
