Redundant synchronous clock distribution system

Abstract

A redundant synchronous clock distribution system is provided comprising at least a first and a second clock module (CB-A, CB-B) and first and second clock distribution branches (O1, O2) adapted for synchronizing at least one clock slave module (CSM) connected downstream to the redundant synchronous clock distribution system. Each of the first and second clock modules (CB-A, CB-B) are adapted to act as a master clock module (CB-A) or a slave clock module (CB-B). A clock switchover module (SW) is adapted to switch each of the first and second clock modules (CB-A, CB-B) to change between the master mode and the slave mode. The clock switchover module (SW) comprises a flip-flop-circuit (1-A, 2-A; 1-B, 2-B) having a first circuit part (SW-A) and a second circuit part (SW-B), wherein the first circuit part (SW-A) is located on the first clock module (CB-A) and the second circuit part (SW-B) is located on the second clock module (CB-B). The redundant synchronous clock distribution system can provide an improved switchover behaviour in order to improve the availability performance of the clock distribution system.

Dependencies are inferred from the claim text.