xDSL splitter interconnect module for network interface device

• US 6,026,160 A
• Filed: 12/31/1997
• Issued: 02/15/2000
• Est. Priority Date: 12/31/1997
• Status: Expired due to Term

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Siecor Operations, LLC (Corning Incorporated)
• Inventors: Lanquist, Todd C., Staber, Harley J., Keenum, John A.
• Primary Examiner(s): Chiang, Jack
• Application Number:
  US09/001,678
• Time in Patent Office: 776 Days
• Field of Search: 379/399, 379/326, 379/327, 379/328, 361/56, 361/119, 361/91, 361/356
• US Class Current: 379/413.03
• CPC Class Codes: H04Q 1/028 Subscriber network interface devices
• CPC Class Codes: H04Q 2201/802 in data transmission systems

Abstract

The present invention provides a splitter module with an xDSL splitter circuit that is removably installable in a network interface device (NID) and interconnectable with a POTS module in the NID to split the POTS and xDSL signal onto separate inside wire pairs terminated in the NID. The splitter module has a jack and a plug. The plug from the POTS module is inserted in the jack on the splitter module and the plug on the splitter module is then inserted into the jack on the POTS module. This exchange of plugs and jacks place a splitter circuit between the outside plant wiring and the pairs of inside wiring.

Claims

1. A network interface device (NID) for providing a point of demarcation for xDSL and POTS signals between an outside plant pair of wires and a first and a second pair of inside wires, comprising:

(a) a housing having an interior and at least one door that closes over the interior, the interior having a first compartment that is accessible by at least the subscriber and a second compartment to which access by the subscriber is not intended;

the first compartment having a plurality of mounting locations;

(b) a POTS module removably mounted in the housing at a first mounting location of the plurality of mounting locations, the POTS module comprising;

(i) a first pair of terminals for connection with the outside plant pair of wires;

(ii) a second pair of terminals for connection with the first pair of inside wires;

(iii) a first jack electrically connected to the first pair of terminals, and

(iv) a first plug electrically connected to the second pair of terminals;

(c) a splitter module removably mounted in the housing at a second mounting location of the plurality of mounting locations, the splitter module comprising;

(i) a second plug that is removably insertable into the first jack;

(ii) a second jack having the first plug removably insertable therein; and

(iii) a first splitter circuit located in series between the second plug and second jack that is designed to pass only the POTS signal from the second plug to the second jack.

2. The device of claim 1 wherein the splitter module further comprises a third pair of terminals electrically connected to a point between the first splitter circuit and the second plug and configured for having the second pair of inside wires connected thereto.

3. The device of claim 2 wherein the splitter module further comprises a second splitter circuit located in series between the third pair of terminals and the second plug, the second splitter circuit designed to pass only the xDSL signal from the second plug to the third pair of terminals.

4. The device of claim 3 wherein the splitter module further comprises a third jack and a third plug inserted therein located in series between the second splitter circuit and the third pair of terminals so as to provide a demarcation point for the xDSL signal.

5. The device of claim 1 wherein the second jack is located on the module such that it opens in a direction toward the POTS module.

6. The device of claim 5 wherein the second jack is located above the top of the POTS module.

7. The device of claim 1 wherein the second plug is connected to the splitter module by a flexible wire pair.

8. The device of claim 1 wherein the housing has a shield that closes over the second compartment and that engages the POTS module to prevent its removal from the housing when the shield is in place and such that the shield must be open to allow mounting of the POTS module in one of the mounting locations.

9. The device of claim 8 wherein the splitter module is configured to be mountable to and removable from one of the mounting locations when the shield is either closed or open.

10. The device of claim 8 wherein the splitter module is configured to be mountable to and removable from one of the mounting locations only when the shield is open such that the splitter module is not removable from the housing when the shield is closed.

11. A method of providing a point of demarcation for xDSL signals and POTS signals between and outside plant pair of wires and first and second pairs of inside subscriber wires in a network interface device (NID) that has at least one POTS module in a first mounting location of a plurality of mounting locations, the POTS module having a first pair of terminals connected to the outside plant pair of wires, a second pair of terminals connected to the first pair of inside wires, and a demarcation point of a first jack with a first plug inserted therein located in series between the first pair of terminals and the second pair of terminals, the method comprising the steps of:

(a) removably mounting a splitter module at a second of the plurality of mounting locations, the splitter module having a second plug, a second jack and a first splitter circuit located in series between the second plug and the second jack that is designed to pass only the POTS signal from the second plug to the second jack;

(b) removing the first plug from the first jack; and

(c) inserting the first plug in the second jack, and inserting the second plug in the first jack.

12. The method of claim 11 further comprising the step of connecting the second pair of inside subscriber wires to the first pair of terminals.

13. The method of claim 11 wherein the splitter module has a third pair of terminals that are electrically connected to a point between the first splitter circuit and the second plug, and further comprising the step of connecting the second pair of inside subscriber wires to the third pair of terminals.

14. A splitter module for installation in a network interface device (NID) that has at least one POTS module in a first mounting location of a plurality of mounting locations, the POTS module having a first pair of terminals, a second pair of terminals, and a demarcation point of a first jack with a first plug inserted therein located in series between the first pair of terminals and the second pair of terminals, the splitter module comprising:

(a) a housing with an outer configuration for being removably mountable at one of the plurality of mounting locations;

(b) a second plug flexibly extending from the housing such that when the housing is mounted in a mounting location adjacent the first mounting location, the second plug can be inserted into the first jack after the first plug is removed;

(c) a second jack located on the housing such that when the housing is mounted in a mounting location adjacent the first mounting location, the first plug can be removed from the first jack and inserted into the second jack; and

(d) a first splitter circuit located in series between the second plug and the second jack, the first splitter circuit designed to pass only the POTS signal from the second plug to the second jack.

15. The module of claim 14 further comprising a third pair of terminals electrically connected to a point between the first splitter circuit and the second plug, the third pair of terminals configured for having the second pair of inside wires connected thereto.

16. A splitter module for installation in a network interface device (NID) that has at least one POTS module in a first mounting location of a plurality of mounting locations, the POTS module having a first pair of terminals, a second pair of terminals, and a demarcation point located in series between the first pair and second pair of terminals, the NID having a shield which is movable between a closed position that engages the POTS module and prevents its removal and an open position where the POTS module can be removed and installed in place, the splitter module comprising:

(a) a housing with an outer configuration that allows it to be installed and removed from one of the plurality of mounting locations while the shield is in the closed position;

(b) a first splitter circuit located in the housing that is designed to pass only POTS signals from a first pair of contacts to a second pair of contacts.

17. The splitter module of claim 16 wherein the outer configuration defines a flexible tang that engages the mounting location and that can be flexed to release the splitter module from the mounting location.

18. A splitter module for selectively passing a first signal from a combined signal having the first signal together with a second signal, the splitter module comprising:

(a) a housing;

(b) a floating RJ-11 plug having a line cord extending therefrom that is connected to the housing;

(c) an RJ-11 jack mounted on the housing; and

(d) a first splitter circuit located in the housing and electrically in series between the jack and the plug, the first splitter circuit designed to pass only the first signal to the jack when the combined signal is transmitted through the plug to the first splitter circuit.

19. The splitter module of claim 18 further comprising a pair of terminals mounted on the housing and electrically connected to a point between the plug and the first splitter circuit.

20. The splitter module of claim 19 further comprising a second splitter circuit located in the housing and electrically in series between the point and the pair of terminals, the second splitter circuit designed to pass only the second signal to the pair of terminals when the combined signal is transmitted through the plug to the second splitter circuit.