Shielded jack assemblies and methods for forming a cable termination
View Patent ↗A jack assembly for use with a modular electrical plug includes a jack housing. The jack housing includes an electrically non-conductive substrate metalized with a metal shield layer. The jack housing defines a socket adapted to receive the plug. At least one electrical contact is positioned in the socket to engage the plug when the plug is inserted in the socket. An electrically conductive jumper member including a drain wire connector may be mounted on the jack housing. The drain wire connector includes a pair of connector tabs defining a slot therebetween to receive and hold the drain wire.
1. A jack assembly for use with a modular electrical plug, the jack assembly comprising:
a) a jack housing including an electrically non-conductive substrate metalized with a metal metallization shield layer, the jack housing defining a socket adapted to receive the plug;
b) at least one electrical contact positioned in the socket to engage the plug when the plug is inserted in the socket; and
c) an electrically conductive jumper member mounted on the jack housing, wherein the jumper member is adapted to couple with a drain wire of a cable, and wherein the jumper member is separately formed from the metallization shield layer.
2. The jack assembly of claim 1 wherein the metallization shield layer forms a tubular, electrically conductive EMI/RFI jack shield.
3. The jack assembly of claim 1 wherein the socket is adapted to receive an RJ-type plug.
4. The jack assembly of claim 1 wherein the jumper member includes a jack wrap having a body surrounding at least a portion of the jack housing.
5. The jack assembly of claim 1 wherein the jumper member includes a drain wire connector, the drain wire connector including a pair of connector tabs defining a slot therebetween to receive and hold the drain wire.
6. The jack assembly of claim 1 wherein the jumper member is unitary.
7. The jack assembly of claim 1 wherein the jumper member is formed of metal.
8. The jack assembly of claim 1 wherein the metallization shield layer has a thickness of no more than about 240 micro inches.
9. The jack assembly of claim 8 wherein the metallization shield layer has a thickness of between about 40 and 120 micro inches.
10. The jack assembly of claim 1 wherein the jack housing is adapted to receive a cable such that a shield sleeve of the cable engages the metallization shield layer to form a continuous EMI/RFI shield including the shield sleeve and the metallization shield layer.
11. The jack assembly of claim 10 wherein:
the jack housing includes a tubular, electrically conductive EMI/RFI jack shield extending at least from the shield sleeve to a front opening of the socket when the cable is installed in the jack assembly; and
the EMI/RFI jack shield includes the metal shield layer.
12. A method for making a jack assembly for use with a modular electrical plug, the method comprising:
a) metalizing an electrically non-conductive substrate to form a metalized jack housing with a metal metalizing shield layer, the jack housing defining a socket adapted to receive the plug;
b) positioning at least one electrical contact in the socket to engage the plug when the plug is inserted in the socket; and
c) mounting an electrically conductive jumper member on the jack housing, wherein the jumper member is adapted to couple with a drain wire of a cable, and wherein the jumper member is separately formed from the metal shield layer.
13. A method for making a jack assembly for use with a modular electrical plug, the method comprising:
a) forming a jack housing including a metal-filled polymer, the jack housing defining a socket adapted to receive the plug;
b) positioning at least one electrical contact in the socket to engage the plug when the plug is inserted in the socket; and
c) mounting an electrically conductive jumper member on the jack housing, wherein the jumper member is adapted to couple with a drain wire of a cable, and wherein the jumper member is separately formed from the metal-filled polymer.
14. A jack assembly for use with a modular electrical plug, the jack assembly comprising:
a) a jack housing including a metal-filled polymer, the jack housing defining a socket adapted to receive the plug; and
b) at least one electrical contact positioned in the socket to engage the plug when the plug is inserted in the socket;
wherein the jack housing includes a jack frame body defining the socket and a can member separately formed from the jack frame body, and the can member is formed of the metal-filled polymer.
15. A jack assembly for use with a modular electrical plug, the jack assembly comprising:
a) a jack housing including a metal-filled polymer, the jack housing defining a socket adapted to receive the plug;
b) at least one electrical contact positioned in the socket to engage the plug when the plug is inserted in the socket; and
c) an electrically conductive jumper member mounted on the jack housing, wherein the jumper member is adapted to couple with wire of a cable, and wherein the jumper member is separately formed from the metal-filled polymer.
16. The jack assembly of claim 15 wherein the metal-filled polymer includes a metal filler selected from the group consisting of stainless steel, nickel and/or copper.
17. The jack assembly of claim 15 wherein the metal-filled polymer surrounds the socket.