# US 5,703,944 A · Network interface device

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- Number: US 5,703,944 A
- Document ID: US5703944A
- Status: Granted
- Kind: A
- Application number: 08/534,145
- Filed: 1995-09-27
- Granted: 1997-12-30
- Earliest claimed: 1995-09-27
- Assignees: Lucent Technologies Inc.
- Inventors: George Andrew DeBalko
- Web page: https://patentgrep.com/patent/US5703944A

## CPC

- H04N 7/166: {Passage/non-passage of the television signal, e.g. jamming, band suppression (scrambling and descrambling H04N7/167)}
- H04M 1/0293: {Terminal boxes for telephone sets}
- H04N 7/163: {by receiver means only}
- H04Q 1/028: {Subscriber network interface devices}
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
- H04Q: SELECTING (switches, relays, selectors H01H; wireless communication networks H04W)

## Abstract

Disclosed is a device for providing an interface between a customer and a combined telecommunications and cable TV network. The device includes a bottom portion including cable TV interdiction equipment which is connected through the top portion by a coaxial jumper cable. The top and bottom portions are mounted so as to prevent access to the interdiction equipment by the customer.

## Claims

### Claim 1

A device for providing an interface between a customer and combination telecommunications and cable TV network comprising:
a bottom portion forming a first enclosed housing for cable TV interdiction equipment and means for receiving a coaxial cable carrying cable TV signals thereon;
a separate top portion forming a second enclosed housing for telecommunication equipment, the second enclosed housing being removably mounted on top of the first enclosed housing, the second enclosed housing and telecommunication equipment being removable without requiring access to the first housing; and
a coaxial jumper cable connected between the equipment in the top and bottom portions.

### Claim 2 (depends on 1)

The device according to claim 1 wherein the bottom portion includes an inner housing made of a metal and an outer housing made of a corrosion resistant material.

### Claim 3 (depends on 1)

The device according to claim 1 wherein the means for receiving the coaxial cable comprises an aperture in the first enclosed housing enclosing the interdiction equipment.

### Claim 4 (depends on 1)

The device according to claim 1 wherein the bottom portion further includes means for connecting a wire pair carrying power to the interdiction equipment.

### Claim 5 (depends on 1)

The device according to claim 1 further comprising a ground wire connected between the top and bottom portions.

### Claim 6 (depends on 1)

The device according to claim 1 wherein the top and bottom portions are mounted by means of aligned tabs on the first and second housings of the top and bottom portions.

### Claim 7 (depends on 6)

The device according to claim 6 wherein the tabs are attached to each other by a fastener which requires a special tool to remove.

### Claim 8 (depends on 1)

The device according to claim 1 wherein the top portion includes a ground bar, a second coaxial jumper cable coupled to the first coaxial jumper cable, and a third coaxial cable coupled to the second jumper cable and extending through the top portion to a customer's premises equipment.

### Claim 9 (depends on 1)

The device according to claim 1 wherein the top portion includes means for receiving a twisted wire pair carrying telecommunications signals to and from the network, and means for receiving another twisted wire pair carrying telecommunications to and from a customer.

### Claim 10 (depends on 1)

The device according to claim 1, wherein the first enclosed housing and the second enclosed housing are stacked and have substantially the same length and width dimensions.

### Claim 11 (depends on 10)

The device according to claim 10, wherein the second enclosed housing takes up no more surface area than the first enclosed housing.

### Claim 12 (depends on 1)

The device according to claim 1, wherein the first enclosed housing includes a locking member that requires a special tool for access to the first enclosed housing and the second enclosed housing is accessible without the special tool.