Serial port switching circuit for selectively connecting two ser

Details Serial port switching circuit for selectively connecting two ser Serial port switching circuit for selectively connecting two ser

1997-04-25

2000-03-07

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral configuration

710 38, 710132, 710131, G06F 1314, H03K 1700, H03K 1794

Patent

active

060353457

ABSTRACT:
A serial port switching circuit includes an input/output controller contained in a computer system, the input/output controller including first and second serial ports for performing serial data communication with external equipment, first and second connectors connected to the external equipment, and a switching arrangement connected between the first and second serial ports of the input/output controller and the first and second connectors, for selectively connecting the first and second serial ports to the first and second connectors in response to a control signal being applied according to a user's selection to allow the input/output controller to perform the serial data communication with the external equipment. According to the present invention, the user can simply switch the connections between the first and second serial ports of the input/output controller and the first and second connectors.

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Satnam Singh Loyal, "PSI WIN and COM2--Please help me !", Jan. 27, 1996.

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