DUPLICATED CHANNEL CONTROL SYSTEM

摘要

PURPOSE:To decrease amount of cables between a duplicated time division channel and a duplicated time division channel controller by providing a confounding circuit between duplicated time division channel controllers. CONSTITUTION:An order controlling a time division channel is transmitted from a call controller via an interprocessor bus 60 and fed to a common control section 30C via a selector 30B. The common control section 30C decodes the order, sets a value of flip-flops 30F, 30P and controls selectors 30H, 30Q. The next order is fed to other common control section 31C via an interprocessor bus confounding line 50 to set a vlaue of a flip-flop 31P. Since a desired channel control bus confounding pattern is designated by giving a value of the flip-flop of both the systems, even if a fault occurs in the channel control bus of one system, one or both time division channels are controlled.