Isolation module for RJ-45 modular jack

Details Isolation module for RJ-45 modular jack Isolation module for RJ-45 modular jack

1998-02-06

2001-01-09

Donovan, Lincoln (Department: 2839)

Electrical connectors

With circuit component or comprising connector which fully...

Termination circuit

Reexamination Certificate

active

06171151

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to an isolation module for an RJ-45 type electrical connector. RJ-45 electrical connectors are modular jacks and are well known in the art. Such modular jacks are utilized in telecommunication, data communication and networking applications. Modular jacks and the corresponding modular plugs are durable, reliable, and generally inexpensive, with electrical conductors or contacts held inside a molded plastic body. The modular jacks generally have a rectangular opening into which the plug is inserted in order to make electrical connections.
In telecommunication and networking applications, it is important to provide isolation and noise level reduction. Typically, RJ-45 modular jacks are connected to a printed circuit board (PCB). It is known in the art to locate a magnetic device as close as possible to the RJ-45 modular jack in order to achieve improved isolation and reduce and control the noise level.
It would be desirable to provide an RJ-45 modular jack type electrical connector which allows for improved isolation and reduced and controlled noise level.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an isolation module for an RJ-45 type modular jack.
In one embodiment, the present invention provides an isolation module for an RJ-45 modular jack which has improved isolation and noise control and reduction for the RJ-45 modular jack. The RJ-45 modular jack includes a front surface having an opening for receiving a corresponding modular plug. The RJ-45 modular jack further includes a plurality of electrical fingers arranged in a spring bias fashion within the opening in the front surface for making electrical contact with a modular plug. The RJ-45 modular jack includes a series of sockets or slots along the back surface of said modular jack and the electrical fingers extend to the back side of the modular socket and terminate in a reverse bent fashion to form a socket or clip portion within a respective socket or slot.
The isolation module interconnects with the back surface of the RJ-45 modular jack, the isolation module including a top portion, side walls and end walls [and an open bottom]. A plurality of electrical module contacts extend from the bottom portion of said side walls and extend below the bottom of the side walls of the isolation module. In one embodiment, the isolation module includes at least one toroid transformer and/or common mode choke or other electronic components contained within the isolation module, the toroid transformers having wires electrically connected to the module contacts. The extended module contacts are inserted within the socket or clip portion of the modular jack to form an interconnection between the isolation module and the modular jack.
Other objects, features and advantages of the present invention will become apparent from the following detailed description when taken in conjunction with the accompanying drawings.


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