Communications: electrical – Continuously variable indicating – With meter reading
Patent
1990-12-18
1992-09-01
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
34082505, 34082580, 340826, 370 60, 370 161, H04Q 300
Patent
active
051442930
ABSTRACT:
A serial link communications system is provided including a first and second switch where each switch is connected to a plurality of devices providing a serial communications link channel between any of the devices connected to that switch. Also, each switch includes an interswitch connection providing a serial link communications channel between any device connected to the first switch and any device connected to the second switch.
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IBM: Technical Disclosure Bulletin vol. 18 No. 9 Feb. 1976.
"Understanding Data Communications", Friend et al, 1984 pp. 2-18 and 2-19.
International Business Machines - Corporation
Stephens Keith
Yusko Donald J.
Zimmerman Brian
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