Aerial enclosure for coupling data signals to a customer site

• US 5,696,864 A
• Filed: 09/18/1996
• Issued: 12/09/1997
• Est. Priority Date: 09/18/1996
• Status: Expired due to Fees

• Current Assignee: Thomas & Betts International Incorporated (ABB Limited)
• Original Assignee: Communications Technology Corporation
• Inventors: Hicks, George, Smith, William D.
• Primary Examiner(s): Lee, John D.
• Assistant Examiner(s): KIM, ELLEN E
• Application Number:
  US08/718,156
• Time in Patent Office: 447 Days
• Field of Search: 385/134, 385/135
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4446 Cable boxes, e.g. splicing boxes with two or more multi fibre cables
• CPC Class Codes: G02B 6/4448 Electro-optic

Abstract

An aerial enclosure for use in distributing above ground fiber optic communications signals from a signal source such as a central office to a customer site. The enclosure has first and second enclosure segments that can be separated to expose an enclosure interior where a termination panel is mounted that includes a row of terminal contact pairs to which copper cables are connected for routing conventional telecommunications signals away from the enclosure interior to a customer site. The enclosure includes a communications subsystem mounted within the enclosure having a first fiber optic portion for routing outgoing light signals to an optical network unit outside the enclosure for conversion to electrical signals. A copper portion of the communications subsystem incoming telecommunications signals back into the enclosure where they are redistributed from one or more of the plurality of terminal contact pairs by copper cables to one or more customer sites. A splice connection between a fiber optic strand from an overhead cable is spliced to the first fiber optic portion of the communications subsystem and then positioned within a splice enclosure for environmentally sealing the splice within the aerial enclosure.

Claims

1. An aerial enclosure for use in distributing above ground communications signals from a signal source to a customer site comprising:

a) a housing having first and second housing segments that can be opened to expose a housing interior;

b) a separation panel mounted to the housing within a housing interior and including a plurality of terminal contact pairs to which communications cables are connected for routing signals away from the housing interior to a customer site;

c) a support for positioning the housing for receipt of communications signals originating at the signal source;

d) a communications subsystem having a first transmission segment for routing communications signals of a first type originating from the signal source away from the enclosure to a location outside the housing for conversion to a second type of signal, said subsystem having a second transmission segment for routing communications signals of the second type back into the housing to the separation panel for distribution to a customer site through one or more of the plurality of terminal contact pairs by means of the communications cables leading to one or more customer sites; and

e) structure for coupling signals from the signal source of the first type to the first transmission segment of the communications subsystem for conversion to signals of the second type.

2. The apparatus of claim 1 wherein the signal source is coupled to a plurality of fiber optic strands and wherein the structure for coupling signals comprises means for splicing or joining one or more fiber optic strands to a second set of one or more fiber optic strands that forms a part of the first transmission segment of the communications subsystem.

3. The apparatus of claim 2 wherein the means for splicing comprises a splice housing mounted to the separation panel that encloses a splice connection between the one or more fiber optic strands and the second set of one or more fiber optic strands.

4. The apparatus of claim 3 wherein the splice housing has a removable lid and sidewalls that define at least two gaps to allow the one or more fiber optic strands to be routed into the splice housing and to allow the one or more fiber optic strands of the second set of fiber optic strands to be routed away from the splice housing.

5. The apparatus of claim 4 wherein an inner portion of each of the at least two gaps is bounded by elastomeric grommet.

6. The apparatus of claim 5 wherein each elastomeric grommet has a hole through which one or more fiber optic strands are inserted prior to splicing together the fiber optic strands.

7. The apparatus of claim 1 wherein the communications subsystem comprises co-axial cable for delivering video signals.

8. The apparatus of claim 1 wherein the communications subsystem comprises means for transmitting radio frequency signals.

9. A method for use in tapping into an above ground communications transmission cable having multiple fiber optic strands comprising the steps of:

a) providing an enclosure having first and second enclosure portions that open to expose an enclosure interior;

b) supporting a termination panel within the enclosure interior that includes a plurality of terminal contact pairs to which communications cables are connected for routing communications signals away from the enclosure interior to a customer site;

c) supporting the enclosure by connecting the enclosure to the above ground communications transmission cable;

d) tapping a portion of the communications signals transmitted through the communications transmission cable by cutting into one fiber optic strand carried by the cable and routing the one strand into the enclosure;

e) splicing the one strand to a second fiber optic strand for routing communications signals transmitted by the one strand away from the enclosure;

f) converting communications signals transmitted by the one strand into a second type of communications signal and routing the second type of communications signal back into the enclosure; and

g) coupling said second signals to one or more sets of the terminal contact pairs within the enclosure for transmission to one or more subscriber locations outside the enclosure.

10. The method of claim 9 wherein subsequent to the splicing step a splice connection between the one strand and the second fiber optic strand is positioned within a second enclosure for environmentally shielding the splice connection.

11. The method of claim 9 wherein prior to splicing the fiber optic cables each cable is inserted through an elastomeric grommet and after splicing the grommet is inserted into walls of a splice enclosure to seal the splice connection within said splice enclosure.

12. An aerial enclosure for use in distributing above ground fiber optic communications signals transmitted on an overhead fiber optic cable that extend from a central office to a telecommunications customer site comprising:

a) housing structure including;

i) first and second housing panels that can be opened to expose a housing interior and including end walls that define access openings for routing communication cables into said housing interior;

ii) a support panel having closure latches that engage the first and second housing panels to allow the first and second housing panels to be opened and closed to access a housing interior; and

iii) a hanger coupled to the support panel for positioning the housing for receipt of fiber optic signals originating at the central office;

b) a separation panel mounted to the housing structure within a housing interior and including a plurality of terminal contact pairs to which communications cables are connected for routing signals away from the housing interior to a customer site;

c) a communications subsystem including;

i) a first fiber optic transmission segment for routing fiber optic light signals from the central office that enter the housing interior through the overhead fiber optic cable through the access openings away from the enclosure to a converter located outside the housing for conversion to electrical signals, and ii) a second electrical conductor transmission segment for routing electrical signals from the converter back into the housing to the separation panel for distribution to a customer site through one or more of the plurality of terminal contact pairs; and

d) splice structure for coupling signals from the central office to the first fiber optic transmission segment of the communications subsystem including a splice housing coupled to the separation panel for enclosing a splice connection and including elastomeric entry defining grommet means for sealing the one or more fiber optic strands extracted from the overhead fiber optic cable at an entry location of the splice housing and for sealing the first fiber optic transmission segment at an exit location from the splice housing.