J
Jonny Quest
Guest
Phone Circuit.
a 3-way switch turns phone service on/off from 2 locations
an LED indicates when the phone is on/off at the 2 locations
a switch toggles phone service between the land line (local) and internet
phone (long distance)
N.C. contacts permit use of the phone when power outages disable the relay
coil.
http://www.stonetabernacle.com/PHONE_CIRCUIT.html
a 3-way switch turns phone service on/off from 2 locations
an LED indicates when the phone is on/off at the 2 locations
a switch toggles phone service between the land line (local) and internet
phone (long distance)
N.C. contacts permit use of the phone when power outages disable the relay
coil.
http://www.stonetabernacle.com/PHONE_CIRCUIT.html