| 摘要 |
A circuit arrangement for a switching system having microprocessors for decentralized execution of switch-oriented jobs is provided wherein a separate microprocessor, autonomously functional for its jobs, is provided in a network level for the connection of a respective class of connection lines with specific and identical transmission properties and in a switching level for the connection of devices respectively provided for executing specific and identical switching tasks and services. All microprocessors are connected with one another by way of a common data bus, whereby the transmission of messages in the transmitting and receiving directions between the microprocessors occurs in the form of information blocks provided with address information. A central clock pulse is provided, under whose control only one respective microprocessor is cyclically connectible for the transmission of an information block and all other microprocessors are connectible to the common data bus for the reception of an information block. Each microprocessor receives an information block only upon the presence of an address intended for the connection lines or devices connected to the microprocessor concerned.
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