US 5,706,160 AGranted

Transmission bandwidth extender/category 5 protector

AssigneeIllinois Tool Works Inc.

InventorsWalter Latuszkin, Mohammad Masghati, Dorothy E. Kruglick

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Abstract

A surge protector module for protecting telecommunications equipment from power and transient surges includes a two-piece interfitting housing, a printed circuit board, a plurality of circuit surge protector devices mounted on the printed circuit board, an input connector connected to a first side of the printed circuit board, and an output connector connected to a second side of the printed circuit board. The printed circuit board includes a unique pattern of conductive traces for use in association with the electrical components of the protector devices so as to meet the TIA's Category 5 specification for connectors. As a result, the bandwidth of the protector module has been extended.

Claims16

Dependent claims

A surge protector module for protecting telephone communications equipment and the like from power and transient surges, comprising:

housing means for receiving and enclosing a printed circuit board;
circuit surge protector means;
said printed circuit board being disposed within said housing for mounting said circuit surge protector means;
said printed circuit board including a first tip conductive trace formed on a top side thereof and a first ring conductive trace formed on a bottom side thereof defining a first pair of tip and ring conductive traces;
said circuit surge protector means including voltage suppressor means coupled to said first tip and ring conductive traces;
said circuit surge protector means further including diode means interconnected between said first tip conductive trace and said first ring conductive trace and in series with said voltage suppressor means for reducing the capacitance with respect to ground caused by said voltage suppressor means;
said printed circuit board further including a second tip conductive trace formed on the top side thereof and a second ring conductive trace formed on the bottom side thereof defining a second pair of tip and ring conductive traces;
said first tip conductive trace being positioned close to said corresponding first ring conductive trace, but not so that they overlap each other;
said first and second pairs of tip and ring conductive traces being formed of a relatively wide width, a relatively short length, and made relatively straight so as to reduce the series resistance and inductive reactance so as to extend the bandwidth of said protector module;
and
a ground shield disposed between said first and second pairs of tip and ring conductive traces so as to improve crosstalk therebetween.

8 more elements

A surge protector module for protecting telephone communications equipment and the like from power and transient surges, comprising:

a first conductor lead defining a tip conductive trace formed on a top side of a printed circuit board;
a second conductor lead defining a ring conductive trace formed on a bottom side of the printed circuit board;
a third conductor lead formed also on the top side of the printed circuit board;
a fourth conductor lead formed also on the top side of the printed circuit board;
voltage suppressor means coupled between said third and fourth conductor leads for conducting in response to an excessive voltage applied across said tip and ring conductive traces;
first bank of diode means having its cathode leads connected to said tip conductive trace and having its anode leads connected to said third conductor leads for reducing the capacitance therebetween caused by said voltage suppressor means;
second bank of diode means having its cathode leads connected to said ring conductive trace and having its anode leads connected to said third conductor leads for reducing the capacitance therebetween caused by said voltage suppressor means;
third bank of diode means having its anode leads connected to said tip conductive trace and having its cathode leads connected to said fourth conductor leads for reducing the capacitance therebetween caused by said voltage suppressor means;
and
fourth bank of diode means having its anode leads connected to said ring conductive trace and having its cathode leads connected to said fourth conductor leads for reducing the capacitance therebetween caused by said voltage suppressor means.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/577,548Filed 22 Dec 1995
Granted: 6 Jan 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H02H 9/044
Responsive to excess voltage: physical layout, materials not provided for elsewhere
H04M 3/18
Automatic or semi-automatic exchanges: with means for reducing interference or noise; with means for reducing effects due to line faults with…
H05K 1/0257
High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating…
H05K 1/0254
Electrical arrangements not otherwise provided for: high voltage adaptations; Electrical insulation details; Overvoltage or electrostatic…

Family

No related US applications are recorded in the indexed filing history.

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