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US 6,285,480 B1Granted
Method and an amplifier unit for the transmission of data signals via an optical fiber
AssigneeDSC Communications A/S
InventorHenrik Hørlyck
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AssigneeDSC Communications A/S
InventorHenrik Hørlyck
Estimating the term…
A method of transmitting data signals via an optical fiber between two network elements (14, 36; 43, 56) in a digital data transmission network comprises using a transmission protocol, wherein, in addition to said data signals, first control and/or monitor signals in the form of overhead signals are transmitted. An optical fiber amplifier (23) is inserted in the optical fiber between the is two network elements. Additionally, second control and/or monitor signals in a format corresponding to said overhead signals are transferred between the optical fiber amplifier and at least one of the two network elements. An amplifier unit (22; 48) comprising an optical fiber amplifier (23) is adapted to be inserted in an optical fiber for the transmission of data signals between two network elements (14, 36; 43, 56) in such a data transmission network. The unit moreover comprises means to transfer second control and/or monitor signals in a format corresponding to said overhead signals between the unit and at least one of the two network elements.
A method of transmitting data signals via an optical-fibre between two network elements in a digital data transmission network according to a transmission protocol, wherein, in addition to said data signals, first control and/or monitor signals in the form of overhead signals are transmitted between the two network elements in a format determined by the transmission protocol, and wherein an optical fibre amplifier is inserted in the optical fibre between the two network elements, and second control and/or monitor signals are additionally transferred between the optical fibre amplifier and at least one of the two network elements, characterized in that said second control and/or monitor signals are transferred to or from the optical fibre amplifier as one or more bytes, whose information content has the same format as said overhead signals.
An amplifier unit comprising an optical fibre amplifier and adapted to be inserted in an optical fibre for the transmission of data signals between two network elements in a digital data transmission network according to a transmission protocol, wherein, in addition to said data signals, first control and/or monitor signals in the form of overhead signals are transmitted, between the two network elements in a format determined by the transmission protocol and wherein the unit moreover comprises means to transmit and/or receive second control and/or monitor signals between the unit and at least one of the two network elements, characterized in that the unit is adapted to transmit and/or receive said second control and/or monitor signals as one or more bytes, whose information content has the same format as said overhead signals.
Dependencies are inferred from the claim text.