Electrical transmission or interconnection systems – Conductor arrangements or structure
Patent
1989-06-20
1991-01-29
Pellinen, A. D.
Electrical transmission or interconnection systems
Conductor arrangements or structure
333100, 361398, 361428, 439492, 439505, H01R 907
Patent
active
049888900
ABSTRACT:
A signal transmission and receiving system includes a controller or central processor unit and one or more peripheral units interconnected by a transmission line or bus having a plurality of conductors. Instead of providing terminator devices for the opposite ends of the bus in the controller and in the last peripheral unit connected to the bus, respectively, both terminator devices are located in the controller and the bus is looped back on itself so that both ends of the bus can be connected to a connector having two sets of contacts, one set being connected electrically to the conductors at one end of the bus and the other set of contacts being connected electrically to the conductos at the other end of the bus. That connector is arranged to be coupled to a mating connector on the controller, that mating connector also having two sets of contacts, one set being connected electrically to one terminator device in the controller and the other set being connected electrically to a second terminator device in the controller so that when the two connectors are coupled together, both ends of the bus have the proper terminating impedances. Additional connectors spaced along the bus are arranged to be coupled to the peripheral units.
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Narhi Larry
Pitman Thomas
Digital Equipment Corp.
Ganjoo Peter
Pellinen A. D.
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