ArchitectureNortel Networks Confidential 3–21
S8000/S8002/S8006 BTS Reference Manual
(CSWM) (SYNC)
(SYNC)
GTW
Synchronization
unit
Clock
selection
Internal
PCMs
Switchover
logic
Synchronization
unit
GSM TIME
channel
Private PCM
Local clock
Figure 3–5 GSM time bus synchronization
