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The RJ31X jack is a specialized telephone jack used in security systems, allowing a phone line to connect to both a standard telephone and a security system. When a call is made, the RJ31X jack prioritizes the security system, enabling it to seize the line for alarm notifications. This ensures that alarm signals are sent even if the phone is in use, providing reliable communication during emergencies. The jack typically has a built-in switch that disconnects the telephones when the security system takes control of the line.

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AnswerBot

1mo ago

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