Cable pair tester

• US 4,943,993 A
• Filed: 09/05/1989
• Issued: 07/24/1990
• Est. Priority Date: 02/17/1988
• Status: Expired due to Term

• Current Assignee: Communications Technology Corporation
• Original Assignee: Don C. Fore
• Inventors: Fore, Don C.
• Primary Examiner(s): SCHREYER, STAFFORD
• Application Number:
  US07/403,294
• Time in Patent Office: 322 Days
• Field of Search: 379/6, 379/27, 379/29, 379/21, 379/22, 324/539, 324/540
• US Class Current: 379/25
• CPC Class Codes: H04M 3/30 for subscriber's lines , for the local loop

Abstract

An apparatus adapted for use with a plurality of cable pairs for placing a test condition on a selected cable pair including a cable pair tester and means remote from the cable pair tester for supplying a cable pair command code and a test condition command code. The cable pair tester includes a portion connected to each of the cable pairs with electrical continuity being interrupted between the cable pairs and the cable pair tester. The cable pair tester is adapted to establish electrical continuity between a selected one of the cable pairs and the cable pair tester in response to receiving a cable pair command code uniquely identifying the selected cable pair. The cable pair tester places the test condition on the selected cable pair in response to receiving the test condition command code.

Claims

1. An apparatus adapted for use with a plurality of cable pairs for placing a test condition of connecting an existing telephone number to a selected cable pair, comprising:

a cable pair tester having a portion connected to each of the plurality of cable pairs with electrical continuity being interrupted between the cable pairs and the cable pair tester, the cable pair tester establishing electrical continuity between a selected one of the cable pairs and the cable pair tester in response to receiving a cable pair command code uniquely identifying the selected cable pair, and the cable pair tester placing the test condition on the selected cable pair in response to receiving the test condition command code comprising;

an auxiliary telephone network adapted to connect an existing telephone number to the selected cable pair in response to receiving the test condition command code uniquely identifying the test condition of connecting the existing telephone number to the selected cable pair, the existing telephone number being connected to the selected cable pair in response to receiving the test condition command code uniquely identifying the test condition of connecting the existing telephone number to the selected cable pair; and

means remote from the cable pair tester for supplying the cable pair command code and the test condition command code.

2. The apparatus of claim 1 wherein the cable pair tester is defined further to include:

a select cable pair network connected to each of the cable pairs, a portion of the select cable pair network interrupting the electrical continuity between each of the cable pairs and the cable pair tester in one condition of the select cable pair network, the select cable pair network being adapted to establish electrical continuity between the selected cable pair and the cable pair tester in response to receiving a signal indicating the selected cable pair; and

a processor receiving the cable pair command code and outputting the signal identifying the selected cable pair uniquely identified in the received cable pair command code, the signal outputted by the processor indicating the selected cable pair in the received cable pair command code being connected to the select cable pair network and the select cable pair network establishing electrical continuity between the selected cable pair identified by the signal received from the processor, the processor receiving the test condition command code uniquely identifying the test condition of connecting the existing telephone number to the selected cable pair, and the auxiliary telephone network being connected to the selected cable pair after electrical continuity has been established between the selected cable pair and the cable pair tester by way of the select cable pair network.

3. An apparatus for use with a plurality of cable pairs adapted to connect an existing telephone number to a selected cable pair comprising:

a cable pair tester having a portion connected to each of the plurality of cable pairs with electrical continuity being interrupted between the cable pairs and the cable pair tester, the cable pair tester establishing electrical continuity between a selected one of the cable pairs and the cable pair tester in response to receiving a cable pair command code uniquely identifying the selected cable pair, comprising;

an auxiliary telephone network adapted to connect the existing telephone number to the selected cable pair in response to receiving a test condition command code uniquely identifying the test condition of connecting the existing telephone number to the selected cable pair, the existing telephone number being connected to the selected cable pair in response to receiving the test condition command code uniquely identifying the test condition of connecting the existing telephone number to the selected cable pair.

4. The apparatus of claim 3 wherein the cable pair tester is defined further to include:

a select cable pair network connected to each of the cable pairs, a portion of the select cable pair network interrupting the electrical continuity between each of the cable pairs and the cable pair tester in one condition of the select cable pair network, the select cable pair network being adapted to establish electrical continuity between the selected cable pair and the cable pair tester in response to receiving a signal indicating the selected cable pair; and

a processor receiving the cable pair command code and outputting the signal identifying the selected cable pair uniquely identified in the received cable pair command code, the signal outputted by the processor indicating the selected cable pair in the received cable pair command code being connected to the select cable pair network and the select cable pair network establishing electrical continuity between the selected cable pair identified by the signal received from the processor, the processor receiving the test condition command code uniquely identifying the test condition of connecting the existing telephone number to the selected cable pair, and the auxiliary telephone network being connected to the selected cable pair after electrical continuity has been established between the selected cable pair and the cable pair tester by way of the select cable pair network.

5. An apparatus adapted for use with the a plurality of cable pairs for placing on a selected cable pair a test condition indicating the placing of a tone signal on the selected cable pair, comprising:

a cable pair tester having a portion connected to each of a plurality of the cable pairs with electrical continuity being interrupted between the cable pairs and the cable pair tester, the cable pair tester establishing electrical continuity between the selected one of the cable pairs and the cable pair tester in response to receiving a cable pair command code uniquely identifying the selected cable pair, comprising;

means for generating a tone signal;

a tone network adapted to place the tone signal on the selected cable pair in response to receiving the test condition command code uniquely identifying the test condition of placing the tone signal on the selected cable pair, the tone signal being placed on the selected cable pair after electrical continuity has been established between the selected cable pair and the cable pair tester; and

means remote from the cable pair tester for supplying the cable pair command code and the test condition command code.

6. The apparatus of claim 5 wherein the cable pair tester is defined further to include:

a select cable pair network connected to each of the cable pairs, a portion of the select cable pair network interrupting the electrical continuity between each of the cable pairs and the cable pair tester in one condition of the select cable pair network, the select cable pair network being adapted to establish electrical continuity between the selected cable pair and the cable pair tester in response to receiving a signal indicating the selected cable pair; and

a processor receiving the cable pair command code and outputting a signal identifying the selected cable pair uniquely identified in the received cable pair command code, the signal outputted by the processor indicating the selected cable pair in the received cable pair command code being connected to the selected cable pair network and the select cable pair network establishing electrical continuity between the selected cable pair identified by the signal received from the processor, the processor receiving the test condition command code uniquely identifying the test condition of placing the tone signal on the selected cable pair and the tone signal being placed on the select cable pair after electrical continuity has been established between the selected cable pair and the cable pair tester by way of the select cable pair network.

7. An apparatus adapted for use with the a plurality of cable pairs for placing on a selected cable pair a test condition indicating the placing of a tone signal on the selected cable pair, comprising:

a cable pair tester having a portion connected to each of a plurality of the cable pairs with electrical continuity being interrupted between the cable pairs and the cable pair tester, the cable pair tester establishing electrical continuity between the selected one of the cable pairs and the cable pair tester in response to receiving a cable pair command code uniquely identifying the selected cable pair, comprising;

means for generating a tone signal; and

a tone network adapted to place the tone signal on the selected cable pair in response to receiving the test condition command code uniquely identifying the test condition of placing the tone signal on the selected cable pair, the tone signal being placed on the selected cable pair after electrical continuity has been establishing between the selected cable pair and the cable pair tester.

8. The apparatus of claim 7 wherein the cable pair tester is defined further to include:

a select cable pair network connected to each of the cable pairs, a portion of the select cable pair network interrupting the electrical continuity between each of the cable pairs and the cable pair tester in one condition of the select cable pair network, the select cable pair network being adapted to establish electrical continuity between the selected cable pair and the cable pair tester in response to receiving a signal indicating the selected cable pair; and

a processor receiving the cable pair command code and outputting a signal identifying the selected cable pair uniquely identified in the received cable pair command code, the signal outputted by the processor indicating the selected cable pair in the received cable pair command code being connected to the selected cable pair network and the select cable pair network establishing electrical continuity between the selected cable pair identified by the signal received from the processor, the processor receiving the test condition command code uniquely identifying the test condition of placing the tone signal on the selected cable pair and the tone signal being placed on the select cable pair after electrical continuity has been established between the selected cable pair and the cable pair tester by way of the select cable pair network.