Twenty eight pair cabling system

Details Twenty eight pair cabling system Twenty eight pair cabling system

1999-06-10

2001-10-16

Sircus, Brian (Department: 2839)

Electrical connectors

With selectable circuit, e.g., plug board

Including three or more contacts adapted to be selectively...

C439S719000

Reexamination Certificate

active

06302699

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to the field of telecommunications, and more particularly to connectors for use in telecommunication system cabling.
BACKGROUND OF THE INVENTION
The telecommunications and data management industries utilize connective hardware for general building wiring, premises distribution systems, local area networks, and other network applications. The connective hardware known as the
110
Connector Systems has become a standard of the industry because of the reliable gas-tight connection provided by the
110
Insulation Displacement Connector. This miniature quick-connect terminating system is listed or approved by Underwriters Laboratories, the Canadian Standards Association, and the Australian Standards Association. The
110
Connector Systems have gained type approval from such countries as the United Kingdom, Japan, Korea, and others.
The
110
Connector Systems are used to manage the horizontal and main cross-connect administration fields. The main cross-connect is typically located in the equipment room and provides termination and cross-connection of network interface equipment, switching equipment, processor equipment, and backbone (riser or campus) wiring. The horizontal cross-connect is typically located in the telecommunications closet and provides termination and cross-connection of horizontal (to the work area) and backbone wiring. Cross-connects allow for easy administration of routing and rerouting common equipment circuits to various parts of a building or campus. This equipment supports both analog and digital voice transmission, as well as high speed data applications that currently run over unshielded twisted pair cables.
Referring now to
FIGS. 1
,
2
, and
3
, the prior art
110
Connector System
10
was designed to have its connector ports
15
arranged in horizontal rows in uniformly spaced conductor termination arrays (index strips).
FIG. 1
shows four rows of index strips
14
mounted in a typical wiring block
12
. The spaces between these index strips become troughs, and are alternately dedicated as either cable routing troughs
16
or cross-connect wire routing troughs
18
.
Unsheathed cable conductors from cables
20
are routed through the cable troughs
16
to their appropriate termination ports in the index strips
14
. All cable sheaths stop at the entrance to the cable troughs
16
. Each cable trough
16
feeds conductors to the two index strips that form its sides.
Connecting blocks
22
, each containing several contact elements
24
in pairs, are placed over the index strips
14
and make electrical connections to the conductors in cables
20
. These connecting blocks
22
also form the side walls of the troughs
16
and
18
. A designation strip
26
is placed within the cable trough
16
, near the top of the connecting blocks
22
. This strip
26
extends the full length of the cable trough
16
, covering the conductors in cables
20
, and allows the cable connector ports
15
to be visibly labeled as an indication of where the other end of the cables are attached. A pair of row marking surfaces
27
are provided to label each row.
Cross-connect wire (not shown) or patchcords
28
are terminated in the ports
25
on the top of the connecting blocks
22
. Cross-connect wires, when used, are routed to their appropriate ports
25
through the cross-connect troughs
18
between the cable troughs
16
. The connecting blocks
22
form the separator between conductors in cables
20
and cross-connect conductors. When patchcords
28
are used, the cross-connect troughs
18
remain empty.
The
110
patchcords
28
are available now in two versions. The old version is a forward-engaging patchcord
28
that uses a forward-engaging plug
30
as shown in FIG.
1
. The patchcord
28
projects outward from the connecting block
22
, is routed through ducts
32
, backboards
34
, and troughs
36
to another connecting block
22
, as shown in FIG.
3
. The new version patchcord uses a reverse-engaging plug. The reverse-engaging patchcord is further described in U.S. Pat. No. 5,718,604 entitled Patch Cord Connection System issued on Feb. 17, 1998 and is incorporated herein by reference.
The prior art
110
connector system has a conductor termination array
14
with twenty-five pair array termination ports
15
, each termination port handling one pair of wires. This would terminate one 25-pair cable using all termination ports, or six 4-pair cables with one termination port left unused.
FIG. 1
shows six 4-pair connecting blocks
22
engaging the array
14
, leaving one termination port unused, as indicated at
15
. The row marking surfaces
27
are located at each end of each row.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided a twenty eight pair cabling system, for use in connection with a cable organizer, cable cover, cable conductors, a connecting block, and a patchcord plug. The cabling system comprises a conductor termination array having twenty-eight pairs of termination ports. Each port pair is able to engage one pair of conductors. The termination array is able to engage seven four-pair cable conductors and seven four-pair connecting blocks.


REFERENCES:
patent: 4865565 (1989-09-01), Heidorn
patent: 5312270 (1994-05-01), Siemon et al.
patent: 5575665 (1996-11-01), Shramawick et al.
patent: 5649829 (1997-07-01), Miller et al.
patent: 5718604 (1998-02-01), Conorich et al.
patent: 5741157 (1998-04-01), O'Connor et al.
patent: 6159020 (2000-12-01), Baker et al.

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