voltage of telephone lines

• in Canada the voltage of your telephone line is up to 48V DC. It usually lingers around 5V and when you get connected or it "rings", the voltage spikes to 40V- 48V
  
  There is a good paper on the subject here:
  http://www.tkk.fi/Misc/Electronics/circuits/teleinterface.html

  Anonymous 05 Nov 2005, 03:33 - Verstoß melden

Volatage/Frequency in Canada