Apparatus for data communication switching

Details Apparatus for data communication switching Apparatus for data communication switching

1994-01-13

1996-07-30

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

395114, 370112, H04Q 100

Patent

active

055415822

ABSTRACT:
A serial communication apparatus for directing data from a plurality of data input devices to a single data output device comprising a plurality of serial input connectors, a serial output connector, and logic and driver circuitry. The logic and driver circuitry automatically regulate the conditions under which a data input device transmits data to the data output device. In the illustrated embodiment of four data input devices, when all are idle, any of them may transmit data to the output device. If one data input device attempts to transmit data while the another data input device is transmitting data, then the logic and driver circuitry causes the second input device to pause until the first input device data transmission is complete. If both input devices attempt simultaneous data transmission, the logic and driver circuitry resolves the contest and allows only one data input device to transmit to the output device at a time.

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