Hot extraction and insertion of logic boards in an on-line commu

Details Hot extraction and insertion of logic boards in an on-line commu Hot extraction and insertion of logic boards in an on-line commu

1988-07-15

1991-03-12

Lall, P. S.

Boots, shoes, and leggings

364900, 361397, 34082516, G06K 1500

Patent

active

049997874

ABSTRACT:
A real-time, high uptime transaction processing system includes many user terminals communicating with service providers via a communications network. A defective logic board is replaced or a board providing system expansion is installed without powering down the system by providing external auxiliary voltages and a reset signal to the board to put it in a passive state while it is being plugged into or unplugged from its backplane connector. Also under computer control the system is made inactive for a short period of time.

REFERENCES:
patent: 3993935 (1976-11-01), Phillips et al.
patent: 4700348 (1987-10-01), Ise et al.
patent: 4750136 (1988-06-01), Arpin et al.
patent: 4835737 (1989-05-01), Herrig et al.

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