Control unit for telecommunications has hot redundant sub modules can switch without service interruption

摘要

The control unit has communications modules (KM1,KM2,...) connected to a bus (BU) and with redundant communications sub modules (MTU1,MTU2) clocks (MCG,IMCG) and switch matrices (MSM,IMSM) connected by multiple overlapping interfaces (IMLA) over links (LWL1, LWL2...) to allow hot substitution without loss of service.