Abstract: A network interface module for providing connection between a customer's equipment and the telephone company owned portion of the customer loop is provided with a miniaturized easily removable module which includes the overvoltage protection device and the circuitry necessary to provide a prescribed line test termination impedance having a particular characteristic signature to the telephone central office when a continuity test is made on a subscriber line.
Type:
Grant
Filed:
April 15, 1991
Date of Patent:
November 22, 1994
Assignee:
Tll Industries, Inc.
Inventors:
James A. Roach, James D. Chermak, Emanuel J. Pagliuca, Thomas J. Smith
Abstract: A weatherproof network interface module for providing connection between a customer's equipment and the telephone company owned portion of the customer loop includes an overvoltage protection device disposed therein in addition to the circuitry which provides a prescribed line test termination impedance having particular characteristic signature to the telephone central office when a continuity test is made on a subscriber line and may include an illumination device and test switch for indicating when the telephone company owned portion of the customer loop is in operating order, or may include a device for connecting or disconnecting the telephone company owned portion of the customer loop from the customer loop portion wherein all of terminals are weatherproof (protected from the environment).