发明名称 Security and communications module
摘要 The invention provides a module for use in a central service provider interface having access to security system and voice and data communications. The module is configured to allow the security system to seize the telephone line when necessary to indicate a security breached to the service provider by incorporating RJ31 functionality to allow the security panel to seize the primary line if activated. The module is also configured to connect a modem to an Internet service provider over PSTN twisted pair cable. Primary and secondary telephone lines are passed through the modem before the telephones to allow filtering of the data signals.
申请公布号 US2002083338(A1) 申请公布日期 2002.06.27
申请号 US20000747671 申请日期 2000.12.22
申请人 CALLOWAY JAMEY O. 发明人 CALLOWAY JAMEY O.
分类号 H04L29/06;H04M1/02;H04M11/04;H04M11/06;(IPC1-7):H04L9/00 主分类号 H04L29/06
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