(Continued from Part 5. This concludes the article.)
Field Phone Line Circuits: The Platoon Hot Loop
This method can to be used if the layout of LP/OPs is favorable. This method of connecting phones is referred to as the Platoon Hot Loop, yet the connection can be made to string the phones together, not in a circle but all along a singe line be it straight or in a circular shape that resembles a perimeter.
The ‘loop’ is actually the electrical path created the connections made in a series in the same way Christmas tree lights were once supplied with power. And we know what happens when one of the bulbs burns out: The whole string goes out. The technique uses a single wire pair that can connect many phones in series. The limit of phones is actually determined by the ringing power that can be supplied by any one of the phones that are on the line. Too many phones will require more power than is available from the weakest magneto that generates up to 90 VAC with sufficient amperage to ring a few other phones without assistance from a switchboard.Continue reading“Communications Options for the Common Man – Part 6, by Tunnel Rabbit”
