Extended-length parallel cable

Details Extended-length parallel cable Extended-length parallel cable

1990-04-03

1992-01-14

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 36, 375121, H04L 2564

Patent

active

050816462

ABSTRACT:
An extended-length parallel data communications cable allowing reliable data transmission over extended distances. Each DATA line is low-pass filtered. The STROBE signal is intercepted, delayed to compensate for the DATA lines' decreased slew rate, and shaped for consistent handshaking. The STROBE line is also buffered and filtered. Current limiting resistors are placed in series with the BUSY and ACKNOWLEDGE lines to limit crosstalk between these lines and any other lines. The INITIALIZE line is filtered to further minimize interference and crosstalk. Only those lines necessary for proper communication are supported. The STROBE buffer may be powered by signals available on the ports to which the parallel cable attaches.

REFERENCES:
patent: 3543160 (1970-11-01), Guanella
patent: 4349870 (1982-09-01), Shaw et al.
patent: 4360913 (1985-11-01), Struger et al.
patent: 4450555 (1984-05-01), Pays
patent: 4543450 (1985-09-01), Brandt
patent: 4583193 (1986-04-01), Kraft et al.

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