Circuit arrangement for serial data transmission between a...

Details Circuit arrangement for serial data transmission between a... Circuit arrangement for serial data transmission between a...

H - Electricity

04

L

340/95

H04L 25/02 (2006.01) H04L 12/40 (2006.01)

Patent

CA 1266310

ABSTRACT OF THE DISCLOSURE A circuit arrangement is provided for serial data transmission between a plurality of subscriber stations via a loaded data bus and having transmitters that are in a high-impedance state in the passive condition and in a low- impedance state in the active condition. In such a circuit arrangement, a mutual control of the subscriber stations occurs via the data bus per se without the assistance of additional control lines. This is achieved with the assistance of a recognition circuit which emits a free signal at its output given at least approximately identical voltages at the data bus and emits a busy signal given different voltages at the data bus. The control arrangement is particularly suit- able for utilization in remote control stations.

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