Flexible duplex dual port serial link controller

Details Flexible duplex dual port serial link controller Flexible duplex dual port serial link controller

H - Electricity

04

L

340/81

H04L 5/14 (2006.01) G06F 13/38 (2006.01) H04L 29/06 (2006.01) G06F 11/20 (2006.01) H04L 29/08 (2006.01)

Patent

CA 1273076

A FLEXIBLE DUPLEX DUAL PORT SERIAL LINK CONTROLLER ABSTRACT OF THE INVENTION A multiple port serial link controller printed wiring card is shown. This printed wiring card provides at least two independent ports. These ports may be of different types such as RS-232 interface, RS-449 interface or other serial protocols such as HDLC, SDLC or BISYNC. These printed wiring cards may be combined in a duplex fashion to form two duplex (highly reliable) port transmission circuits. The duplex configuration requires a minimum amount of backplane wiring. This backplane wiring is permanent and requires no manual intervention for switching between transmission and mode types. Switching between transmission mode type and reconfiguring for the occurrence of faults may be accomplished by an automatic processor manipulation of a number of control points.

524953

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