Electric filtering device

Patent metadata

Field	Value
Publication number	US-11664847-B2
Application number	US-202017782384-A
Country	US
Kind code	B2
Filing date	Nov 23, 2020
Priority date	Dec 5, 2019
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

An electric filtering device ( 200 ) for filtering Repetitive Electrical Impulse Noise (REIN) in a fixed-access telecommunications network ( 100 ), the electric filtering device comprising: a REIN filter ( 210 ), said REIN filter comprising a first electrical contact ( 220 - 1 ) and a second electrical contact ( 220 - 2 ) for connecting to a telecommunications cable ( 140 ) of the fixed-access telecommunications network; an enclosure ( 230 ) for enclosing the REIN filter; an input ( 250 - 1 ) and an output ( 250 - 2 ), formed as part of the enclosure, each for receiving a telecommunications cable ( 140 ) so as to be connected to the first and the second electrical contacts, thereby to connect the REIN filter to the fixed-access telecommunications network; a coupling formation ( 260 ) for coupling the electric filtering device to an external distribution point ( 130 ) for a telecommunications cable of the fixed-access telecommunications network.

First claim

The invention claimed is:

1. An electric filtering device for filtering Repetitive Electrical Impulse Noise (REIN) in a fixed-access telecommunications network, the electric filtering device comprising:
a REIN filter, said REIN filter comprising a first electrical contact and a second electrical contact for connecting to a telecommunications cable of the fixed-access telecommunications network;
an enclosure for enclosing the REIN filter;
an input and an output, formed as part of the enclosure, each for receiving a telecommunications cable so as to be connected to the first and the second electrical contacts, thereby to connect the REIN filter to the fixed-access telecommunications network; and
a coupling formation for coupling the electric filtering device to an external distribution point for a telecommunications cable of the fixed-access telecommunications network.

2. An electric filtering device according to claim 1 , wherein the external distribution point is a telecommunications pole.

3. An electric filtering device according to claim 1 , wherein the first and/or the second electrical contact/s is/are configured to couple with a twisted metal pair wire.

4. An electric filtering device according to claim 1 , wherein the telecommunications cable is in the form of a dropwire.

5. An electric filtering device according to claim 1 , wherein the input and the output are in the form of apertures, and wherein the input and the output each further comprise a seal for sealing the apertures when having received a telecommunications cable.

6. An electric filtering device according to claim 1 , wherein the REIN filter is operable at a DC voltage of up to 60 Volts and a current of up to 350 milliAmps.

7. An electric filtering device according to claim 1 , wherein the input and/or the output further comprise/s an electrical connector, and wherein each electrical connector is electrically connected to the first or second electrical contact.

8. An electric filtering device according to claim 1 , further comprising an anchor point for tethering a strength member of a telecommunications cable.

9. An electric filtering device according to claim 1 , wherein the input and the output are arranged on distal sides of the enclosure.

10. An electric filtering device according to claim 1 , wherein the first electrical contact is arranged to receive a telecommunications cable from a customer premises; and wherein the second electrical contact is arranged to receive a telecommunications cable from a distribution-side cable of the fixed-access telecommunications network.

11. An electric filtering device according to claim 1 , wherein the first electrical contact and the second electrical contact are arranged on distal sides of the REIN filter.

12. An electric filtering device according to claim 1 , wherein the enclosure is in the form of a waterproof enclosure.

13. An electric filtering device according to claim 1 , wherein the enclosure comprises two separable parts, and wherein said parts comprise complementary engagements for engaging said two separable parts together.

14. An electric filtering device according to claim 1 , wherein the enclosure further comprises a mechanical shock-absorbing member for protecting the REIN filter from mechanical shock.

15. An electric filtering device according to claim 1 , wherein the enclosure is rigid.

16. An electric filtering device according to claim 1 , wherein the enclosure is formed of a UV-resistant material.

17. An electric filtering device according to claim 1 , wherein the enclosure is formed of an electrically-insulating material, thereby to prevent electromagnetic induction.

18. An external distribution point for a fixed-access telecommunications network, the external distribution point comprising:
a customer-side telecommunications cable;
a distribution-side telecommunications cable; and
an electric filtering device according to claim 1 , wherein the customer-side telecommunications cables is electrically connected to the distribution-side telecommunications cable via said electric filtering device.

Assignees

• British Telecomm

Inventors

• Vince James

Classifications

• H04B15/005 Primary

  Reducing noise, e.g. humm, from the supply · CPC title

• H04L2012/6478

  Digital subscriber line, e.g. DSL, ADSL, HDSL, XDSL, VDSL · CPC title

• H04B3/46 Primary

  Monitoring; Testing · CPC title