Repeater apparatus having isolation circuit
First Claim
1. A repeater apparatus including a circuit for electrically isolating a link of a communication network, comprising:
- a first trunk circuit for receiving data input from and driving data to a first section of the link via at least one first communication line;
a second trunk circuit for receiving data input from and driving data to a second section of the link via at least one second communication line;
isolation means, operatively connected to said first trunk circuit for electrically isolating said first trunk circuit from said second trunk circuit;
protection means, operatively connected to said first and said second trunk circuits for protecting against an overvoltage condition from said communication network; and
controlling means, operatively connected between said first and second trunk circuits, for transferring data from said first trunk circuit to said second trunk circuit, and from said second trunk circuit to said first trunk circuit.
3 Assignments
0 Petitions
Accused Products
Abstract
A repeater apparatus includes a first trunk circuit for receiving and sending data input from and to a first section of the communication link and a second trunk circuit for receiving and sending data input from and to a second section of the communication link. An Isolating circuit is connected to the first trunk circuit for electrically isolating the first section from the second section. For protecting against an overvoltage condition from the communication network, a protection circuit is operatively connected to the first and second trunk circuits. A controller has a first receiver/transmitter circuit for transmitting data from the first trunk circuit to the second trunk circuit, and a second receiver/transmitter circuit for transmitting data from the second trunk circuit to the first trunk circuit. The controller also produces a signal for indicating the completion of data transmission by the first and second receiver/transmitter.
25 Citations
31 Claims
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1. A repeater apparatus including a circuit for electrically isolating a link of a communication network, comprising:
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a first trunk circuit for receiving data input from and driving data to a first section of the link via at least one first communication line; a second trunk circuit for receiving data input from and driving data to a second section of the link via at least one second communication line; isolation means, operatively connected to said first trunk circuit for electrically isolating said first trunk circuit from said second trunk circuit; protection means, operatively connected to said first and said second trunk circuits for protecting against an overvoltage condition from said communication network; and controlling means, operatively connected between said first and second trunk circuits, for transferring data from said first trunk circuit to said second trunk circuit, and from said second trunk circuit to said first trunk circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A repeater apparatus including a circuit for electrically isolating a link of a communication network, comprising:
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first trunk means for receiving and sending data input from and to a first section of the communication link; second trunk means for receiving and sending data input from and to a second section of the communication link; isolation means operatively connected to said first trunk means for electrically isolating said first section from said second section; protection means operatively connected to said first and second trunk means for protecting against an overvoltage condition from said communication network; controlling means, operatively connected between said first and second trunk means and having first and second receiver/transmitter means, for receiving first data from said first trunk means, detecting communication errors in said first data, transmitting said first data to said second trunk means when communication errors are not detected and dropping said first data if communication errors are detected, and for receiving second data from said second trunk means, detecting communication errors in said second data, transmitting said second data to said first trunk means when communication errors are not detected and dropping said second data if communication errors are detected, said controlling means also outputting operational status signals, and producing a transmission completion signal for indicating end of said first and second data transmitted by said first and second receiver/transmitter means, respectively; and switching means for selecting a transmitting speed of said controlling means for transmitting said first and second data from a plurality of speeds. - View Dependent Claims (17, 18, 19, 20)
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21. A repeater apparatus including a circuit for electrically isolating a link of a communication network, comprising:
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first trunk means for receiving and sending data input from and to a first section of the communication link; second trunk means for receiving and sending data input from and to a second section of the communication link; isolation means operatively connected to said first trunk means for electrically isolating said first section from said second section; switching means for switching the repeater apparatus between a normal mode and a test mode; and controlling means, operatively connected between said first and second trunk means and having first and second receiver/transmitter means, for transferring first data from said first trunk means to said second trunk means and for transferring second data from said second trunk means to said first trunk means when the repeater apparatus is set in said normal mode by said switching means, and for conducting a switch position status test, a self-test in which test data is generated and transmitted from a selected one of said first and second receiver/transmitter means to the other one of said first and second data receiver/transmitter means and retransmitted from said other one of said second data receiver/transmitter means to said selected one of said first and second data receiver/transmitter means and is checked for communication errors, and a communication link test in which test data is generated and transmitted from a first repeater apparatus to a second repeater apparatus and retransmitted from said second repeater apparatus to said first repeater apparatus and is checked for communication errors, when the repeater apparatus is set in said test mode. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification