Reconfigurable ADD/DROP, multiplexer/demultiplexer using a transceiver with loop-back function
First Claim
1. A reconfigurable ADD/DROP demultiplexer/multiplexer apparatus comprisinga demultiplexer/multiplexer includinga demultiplexer (101A) for receiving a first multiplexed signal (101A) which is demultiplexed into a first demultiplexed signal (103A) anda multiplexer for receiving a second demultiplexed signal (203) which is multiplexed into a second multiplexed signal (101B) anda serializer/deserializer apparatus includingfirst converter means for receiving the first demultiplexed signal which is converted to an output signal,second converter means for receiving an input signal which is converted to the second demultiplexed signal, andreconfiguration means responsive to one or more control signals selected from a group including (1) a PASS control signal for selecting one or more signal components of the first demultiplexed signal to be looped-back to become selected one or more signal components of the second demultiplexed signal, (2) a DROP control signal for selecting one or more signal components of the first demultiplexed signal to be dropped and outputted as corresponding one or more signal components of the third multiplexed signal, and (3) an ADD control signal for selecting one or more signal components of the fourth multiplexed signal to be added as corresponding one or more signal components of the second demultiplexed signal.
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Accused Products
Abstract
A reconfigurable ADD/DROP multiplexer/demultiplexer apparatus is implemented by connecting a multiplexer/demultiplexer apparatus to a serializer/deserializer (SERDES) apparatus having a loop-back capability. By selectively activating the loop-back functionality of the SERDES apparatus the combination can be made to function as a reconfigurable ADD/DROP multiplexer/demultiplexer apparatus.
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Citations
13 Claims
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1. A reconfigurable ADD/DROP demultiplexer/multiplexer apparatus comprising
a demultiplexer/multiplexer including a demultiplexer (101A) for receiving a first multiplexed signal (101A) which is demultiplexed into a first demultiplexed signal (103A) and a multiplexer for receiving a second demultiplexed signal (203) which is multiplexed into a second multiplexed signal (101B) and a serializer/deserializer apparatus including first converter means for receiving the first demultiplexed signal which is converted to an output signal, second converter means for receiving an input signal which is converted to the second demultiplexed signal, and reconfiguration means responsive to one or more control signals selected from a group including (1) a PASS control signal for selecting one or more signal components of the first demultiplexed signal to be looped-back to become selected one or more signal components of the second demultiplexed signal, (2) a DROP control signal for selecting one or more signal components of the first demultiplexed signal to be dropped and outputted as corresponding one or more signal components of the third multiplexed signal, and (3) an ADD control signal for selecting one or more signal components of the fourth multiplexed signal to be added as corresponding one or more signal components of the second demultiplexed signal.
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4. A reconfigurable ADD/DROP demultiplexer/multiplexer apparatus comprising
a demultiplexer/multiplexer including a demultiplexer for receiving a first multiplexed signal which is demultiplexed into a first demultiplexed signal and a multiplexer for receiving a second demultiplexed signal which is multiplexed into a second multiplexed signal and a serializer/deserializer apparatus including a serializer for receiving the first demultiplexed signal which is serialized into a third multiplexed signal and a deserializer for receiving a fourth multiplexed signal which is deserialized into the second demultiplexed signal, and reconfiguration means responsive to one or more control signals selected from a group including (1) a PASS control signal for selecting one or more signal components of the first demultiplexed signal which are looped-back to become selected one or more signal components of the second demultiplexed signal, (2) a DROP control signal for selecting one or more signal components of the first demultiplexed signal to be dropped and outputted as corresponding one or more signal components of the third multiplexed signal, and (3) an ADD control signal for selecting one or more signal components of the fourth multiplexed signal to be added as corresponding one or more signal components of the second demultiplexed signal.
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8. A reconfigurable ADD/DROP demultiplexer/multiplexer apparatus comprising
a demultiplexer/multiplexer including a demultiplexer for receiving a first multiplexed signal which is demultiplexed into a first demultiplexed signal and a multiplexer for receiving a second demultiplexed signal which is multiplexed into a second multiplexed signal and a serializer/deserializer apparatus including a deserializer for receiving the first demultiplexed signal which is deserialized into a third demultiplexed signal and a serializer for receiving a fourth demultiplexed signal which is serialized into the second demultiplexed signal, and reconfiguration means responsive to one or more control signals selected from a group including (1) a PASS control signal for selecting one or more signal components of the first demultiplexed signal to be looped-back to become selected one or more signal components of the second demultiplexed signal, (2) a DROP control signal for selecting one or more signal components of the first demultiplexed signal to be dropped and outputted as corresponding one or more signal components of the third multiplexed signal, and (3) an ADD control signal for selecting one or more signal components of the fourth multiplexed signal to be added as corresponding one or more signal components of the second demultiplexed signal.
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11. A method of operating a reconfigurable ADD/DROP demultiplexer/multiplexer apparatus comprising the steps of:
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at a demultiplexer/multiplexer demultiplexing a first multiplexed signal into a first demultiplexed signal and multiplexing a second demultiplexed signal into a second multiplexed signal and at a serializer/deserializer apparatus converting the first demultiplexed signal into an output signal, converting an input signal into the second demultiplexed signal, and wherein the serializer/deserializer apparatus is responsive to one or more control signals selected from a group including (1) a PASS control signal selecting one or more signal components of the first demultiplexed signal which are looped-back as one or more components of the second demultiplexed signal, (2) a DROP control signal selecting one or more signal components of the first demultiplexed signal to be dropped and outputted as corresponding one or more signal components of the third multiplexed signal, and (3) an ADD control signal selecting one or more signal components of the fourth multiplexed signal to be added as corresponding one or more signal components of the second demultiplexed signal. - View Dependent Claims (12, 13)
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Specification