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Remote Computer Power-On via Switched Telephone Network. November 1982

IP.com Disclosure Number: IPCOM000050617D
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

MacBride, GJ: AUTHOR [+2]

Abstract

Remote computer power-on via a switched telephone network is provided by power-on logic that resides between an auto-answering coupler (such as the type CBS coupling device of Bell Telephone Laboratories, Inc.) and a modem attached to a switched telephone network. This device provides the ability for the system to which it is attached to be powered on from a remote source. The telephone connection is not opened (billing begun) until all system components are ready. Subsequent power-off is controlled by software or, under abnormal conditions, by the device itself.

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Remote Computer Power-On via Switched Telephone Network. November 1982

Remote computer power-on via a switched telephone network is provided by power-on logic that resides between an auto-answering coupler (such as the type CBS coupling device of Bell Telephone Laboratories, Inc.) and a modem attached to a switched telephone network. This device provides the ability for the system to which it is attached to be powered on from a remote source. The telephone connection is not opened (billing begun) until all system components are ready. Subsequent power-off is controlled by software or, under abnormal conditions, by the device itself.

Activation of this device is controlled by a switch. When the switch is off so as to deactivate the device, all telecommunications functions are normal.

Referring to the drawing, when a telephone call is received, the CBS coupler 1 passes the ring indicate signal to the power-on logic 4 by way of line 5. Logic 4 activates the power supply 9 with a remote power-on signal on line 8 and triggers timers 1 and 2. Time-out of these timers is recognized by time-out detection circuit 10. When timer 1 times out, the ring indicate signal is then passed on to modem 2 by way of line 6 and the normal auto-answer cycle involving data terminal equipment 3 can take place. Timer 1 is set up to take no longer than 15 seconds. When timer 2 times out, the telephone connection can then be broken. This is done with a data terminal ready signal on line 7 fr...