Hour meter to monitor the actual hours on line.
When I was on dial up the meter started automatically via an opto bridge (4N35) in series with the phone line.
To increase the speed from 28 kB to 52-54 kB / sec. the other phones were switched off via a relay.
Now I'm on broadband, I switch the hour meter ON manually. At the same time It switches the modem on, and closes a contact to activate the phone line to the computer.
When I was on dial up the meter started automatically via an opto bridge (4N35) in series with the phone line.
To increase the speed from 28 kB to 52-54 kB / sec. the other phones were switched off via a relay.
Now I'm on broadband, I switch the hour meter ON manually. At the same time It switches the modem on, and closes a contact to activate the phone line to the computer.
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Tech