At 10:18 PM -0400 10/22/2005, Wm. Arnold wrote:
I need info on how to use remote sensors and remote video by modem on a Mac
9500 and OS 9.2.2.
At home: Mac <-> Modem <-> Phone line.
At Church: Phone line <-> Modem <-> UART <-> Sensor.
The UART is an electronic device, a chip or two, that converts the
data coming in to RS-232 that the Modem can read.
The above would work for simple sensors - thermocouples, etc. But
not for complex things like video.
This will be very intermittent, like 1 minute, twice a day.
This will be used to monitor a furnace room in a church.
Look into home and business security type systems.
They often have wired and wireless sensors, video, etc. Each sensor
includes a small microprocessor and the necessary logic and telecom
device. Some of the more expensive ones will let you relay the data
out of the central control box, via modem.
- Dan.
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