TWO-WAY IR SCI THROUGH PAGER HOUSING OR LCD
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2002-Jan-08
Currently Motorola Pagers use the SC1 (Serial Com- munications Interface) to provide a means of changing Code Plug options, end of line testing, and printer inter- faces. This is usually accomplished by a hard contact method. Typically a metal contact is provided by a printed circuit board, internal to the pager, for which an electri- cal contact can be made from outside the pager. In order to achieve SC1 communications multiple contacts are required. The current method of providing contacts has associated with it multiple problems: 1. Not able to achieve a water resistant pager. 2. Holes in the housing of the pager through which electrical contact is made. 3. Extra precaution must be taken to provide ESD protection to SC1 port. 4. Gold contact pins must be used to minimize oxi- dation and poor contacts. 5. Large contact surfaces, which require enormous room inside the pager, must be used in order to guarantee electrical contact.