Browse Prior Art Database

Lock Box Access Multiplexer

IP.com Disclosure Number: IPCOM000051293D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Dillon, BC: AUTHOR

Abstract

A lock box access multiplexer may be included in a control access syste where designated people gain access to a unique lock box or boxes that security has assigned to them.

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Lock Box Access Multiplexer

A lock box access multiplexer may be included in a control access syste where designated people gain access to a unique lock box or boxes that security has assigned to them.

The intent here is to use a badge reader in conjunction with three push- button (P.B.) switches to gain access to one or more boxes. The designated person will use his other badge in the reader and then push one of the switches. Switch "A" is for one box only, while switch "B" is for one or more boxes, and switch "C" indicates that you want multiple boxes opened in sequence following closure of each box, until all boxes that person is cleared for have been accessed.

Each lock box door will be fitted with a door-sensing switch. The switches will be all wired in series. Thus, any one open will be sensed as a lock box door being open, and no further access can be gained until that door is secured.

Fig. 1 shows the electrical schematic of the lock box strike control. One X coordinate control circuit 10 is shown as well as one Y coordinate control circuit
12. These circuits are securely safe when the computer is down, and the power to the boxes and control circuits fails. Fig. 2 shows the reader to the system, the push-button switches and the door monitoring sense switches. A 64-door lock box would require 16-D/O points on the system and 5-D/I points.

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