Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1991-11-13
1993-12-21
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340531, 3403111, 34082544, 340534, 379 40, 379 49, 379 51, 379 57, G08B 108, H04M 1104
Patent
active
052724654
ABSTRACT:
An automatic alarm code converter wherein a plurality of alarm dialers report alarm conditions using security industry standard pulsed tone, FSK, or DTMF formats and call through the PSTN to the converter. The converter comprises a telephone line interface/decoder, a microprocessor which correlates the received alarm ID and code with addresses in a page data memory. The page data memory contains a pager number and an associated alphanumeric ASCII message The code converter further comprises a software program embodied in an EPROM which instructs on the automatic formatting of the page data into the PET/TAP protocol. The code converter communicates the page data to the paging system through a full duplex serial port either by direct RS232 connection or remotely through a dial-out modem using the PET/TAP protocol.
REFERENCES:
patent: 4692742 (1987-09-01), Raizen et al.
patent: 4766434 (1988-08-01), Matai et al.
patent: 4856047 (1989-08-01), Saunders
patent: 4926460 (1990-05-01), Gutman et al.
patent: 4959644 (1990-09-01), Sato
patent: 5010317 (1991-04-01), Schwendeman et al.
Crosland Donnie L.
Telemessaging Devices, Inc.
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