Optical and electrical channel feedback in optical transceiver module
First Claim
1. A transceiver for use in connecting a host with an optical network, the transceiver comprising:
- an input port that receives electrical signals from a host, the input port being in communication with an optical transmitter for generating an optical signal for transmission to the optical network;
an output port that sends electrical signals to the host, the output port being in communication with an optical receiver that receives optical signals from the optical network and converts the optical signals into electrical signals; and
a loopback path for selectively coupling an incoming electrical signal from the input port to the output port.
5 Assignments
0 Petitions
Accused Products
Abstract
Optical transceivers have loopback and pass-through paths for diagnosing transceiver components and optical networks connected to the optical transceiver or for routing data out of the transceiver in a pass-through mode. The loopback paths are selectively configured so that a selected number of the components in the transceiver are included in the loopback path. Where more than one loopback path is present, a network administrator can select which components will be included in a particular test so that, depending on whether a signal is returned on the loopback path as intended, the network administrator can determine which components are operating correctly and which are faulty. The loopbacks can be configured to run on the electrical side of the transceiver from input port to output port or on the optical side from receiver to transmitter. The pass-through paths can be used to connect the transceiver to other devices.
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Citations
36 Claims
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1. A transceiver for use in connecting a host with an optical network, the transceiver comprising:
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an input port that receives electrical signals from a host, the input port being in communication with an optical transmitter for generating an optical signal for transmission to the optical network;
an output port that sends electrical signals to the host, the output port being in communication with an optical receiver that receives optical signals from the optical network and converts the optical signals into electrical signals; and
a loopback path for selectively coupling an incoming electrical signal from the input port to the output port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A transceiver for use in connecting an optical network to a host, the transceiver comprising:
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an optical transmitter generating an optical output in response to an electrical input signal applied to an input of the optical transmitter;
an optical receiver generating an electrical output signal at a receiver output in response to an optical input; and
a loopback path for selectively coupling the electrical output signal from the optical receiver to the input of the optical transmitter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A transceiver for use in connecting a host with an optical network, comprising:
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an input port for receiving an electrical input signal from a host;
an optical transmitter generating an optical output in response to the electrical input signal applied to a transmitter input;
an optical receiver generating an electrical output signal at a receiver output in response to an optical input;
an output port for relaying the electrical output signal to the host;
a first loopback path for selectively coupling the electrical input signal from the input port to the output port; and
a second loopback path for selectively coupling the electrical output signal from the optical receiver to the optical transmitter. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A transceiver, comprising:
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an optical transmitter capable of generating an optical output in response to an electrical input signal applied to a transmitter input;
an optical receiver capable of generating an electrical output signal at a receiver output in response to an optical input;
a transceiver input port for receiving an electrical input signal;
a transceiver output port for receiving the electrical output signal and communicating the electrical output signal to a host system;
a pass-through port; and
a pass-through path for selectively coupling the electrical input signal from the input port to the pass-through port in a pass-through mode. - View Dependent Claims (30)
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31. A transceiver, comprising:
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an optical transmitter generating an optical output in response to an electrical input signal applied to a transmitter input;
an optical receiver generating an electrical output signal at a receiver output in response to an optical input;
an input port;
an output port for receiving the electrical output signal and communicating the electrical output signal to a host system;
a pass-through port; and
a pass-through path for selectively coupling the electrical output signal from the optical receiver to the pass-through port in a pass-through mode. - View Dependent Claims (32)
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33. A method for remotely diagnosing the operation of devices in an optical network, the method comprising:
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in an optical device that, in normal operation, communicates a data signal from an input to a first output, receiving a control signal at the optical device;
placing the optical device in a signal rerouting mode in response to the control signal; and
selecting a signal path on the optical device whereby the data signal is routed from the input to a second output. - View Dependent Claims (34, 35, 36)
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Specification