Optical waveguides – With disengagable mechanical connector
Reexamination Certificate
2001-04-05
2003-04-08
Nguyen, Khiem (Department: 2839)
Optical waveguides
With disengagable mechanical connector
C439S535000
Reexamination Certificate
active
06543940
ABSTRACT:
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates to a fiber converter faceplate outlet and, more particularly, to such a fiber converter faceplate outlet adapted for use to connect the network interface card of a personal computer to a sever through a switch-hub and a router.
The network interface card of a personal computer is connected to a RJ45 plug at one end of a unshielded twisted pair cable, which has a second RJ45 plug at the other end connected to a RJ45 jack in the wall. The RJ45 jack in the wall is connected to a switch-hub through a unshielded twisted pair cable to a router, which router is connected to a sever through another unshielded twisted pair cable. This personal-computer-to-sever connection cannot effectively eliminate noises, and its data transmission speed is low. In order to eliminate these problems, fiber optic cables are used for the connection between a personal computer and a sever. Therefore, “Fiber to the desk” and “Fiber to the home” are well developed. Fiber cable transmission between a personal computer and a sever can be achieved by either of the following two ways shown in
FIGS. 1 and 2
. In the method shown in
FIG. 1
, the sever
911
is linked to a router
900
through a fiber optic cable
912
, the router
900
is then linked to a switch-hub
914
by a fiber optic cable
913
, the switch-hub
914
is in turn connected to a fiber converter
916
by a fiber optic cable
915
, which fiber converter
916
is connected to a fiber connector outlet
917
in the wall
92
by a fiber optic cable
902
and then to a fiber converter
919
through a fiber jumper patch cord
918
, and the fiber converter
919
is connected to the network interface card
931
of the personal computer
93
by a unshielded twisted pair cable
910
. In the method shown in
FIG. 2
, the sever
941
is connected in series through a router
901
and then a switch-hub
944
to a fiber converter
846
by unshielded twisted pair cables
942
,
943
and
945
, and the fiber converter
946
is in turn connected to a fiber connector outlet
947
in the wall
96
through a fiber optic cable
904
and then to a fiber converter
949
through a fiber jumper patch cord
948
, and the fiber converter
949
is connected to the network interface card
951
of the personal computer
95
by a unshielded twisted pair cable
940
. The advantages of the aforesaid two methods include interference and noise free, high capacity, and long connection distance. However, these methods still have drawbacks as outlined hereinafter.
1. Because a big number of many parts (including fiber converters
916
,
919
;
946
,
949
, fiber jumper patch cord
918
;
948
, and fiber connector outlet
917
;
947
) are used, the installation cost is high.
2. Because a big number of parts are used, the installation and operation procedures are complicated, and the line fails in case the connection between one part (fiber converter
916
,
919
;
946
,
949
, fiber jumper patch cord
918
;
948
, or fiber connector outlet
917
;
947
) and the respective cable (fiber optic cable or UTP cable
912
,
915
,
902
;
942
,
945
,
904
) is disconnected accidentally.
The present invention has been accomplished to provide a fiber converter faceplate outlet, which eliminates the aforesaid drawbacks. It is one object of the present invention to provide a fiber converter faceplate outlet, which is easy to assemble and convenient to install. It is another object of the present invention to provide a fiber converter faceplate outlet, which requires less installation space. It is still another object of the present invention to provide a fiber converter faceplate outlet, which is inexpensive to manufacture and can be used to substitute for conventional fiber connector outlet, fiber converter, and jumper cable. It is still another object of the present invention to provide a fiber converter faceplate outlet, which has a direct current power jack and a termination block for connecting external power source to an indoor power cord. According to one aspect of the present invention, the fiber converter faceplate outlet comprises a rack holding a circuit board unit, and a metal shield covering the rack and the circuit board unit to protect against electromagnetic interference. The circuit board unit comprises a fiber optical transceiver having two jacks adapted to receive the fiber connector of a respective optic cable, and a telecommunication connector having a RJ45 jack adapted to receive the RJ45 plug of a unshielded twisted pair cable being connected to a network interface card of a personal computer. According to another aspect of the present invention, the rack further comprises a plurality of keyway-like mounting holes for fastening to respective posts of a wall junction box by screws. According to still another aspect of the present invention, the direct current power jack has a receiving side adapted to receive external power cable from external power supply, and the terminal block has a receiving side adapted to receive a house internal power cable.
REFERENCES:
patent: 4874904 (1989-10-01), DeSanti et al.
patent: 5362254 (1994-11-01), Siemon et al.
patent: 5599206 (1997-02-01), Slack et al.
patent: 6350151 (2002-02-01), Elliot et al.
patent: 6435727 (2002-08-01), Fingler et al.
Nguyen Khiem
Varndell & Varndell, PLC
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