H - Electricity – 04 – M
Patent
H - Electricity
04
M
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H04M 3/30 (2006.01) H04B 3/46 (2006.01)
Patent
CA 1217286
- 12 - AN IMPROVED MAINTENANCE TERMINATION UNIT Abstract A method and apparatus for locating faults in a transmission line as being on a customer side or a network side of the apparatus is disclosed. A maintenance termination unit is described that includes a pair of normally open voltage sensitive switches respectively connected in series with conductors of a transmission loop and a distinctive termination connected between the conductors on the customer side of the switches. The distinctive termination includes a resistor and oppositedly disposed diode zener diode pair.
468401
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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