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US 9,042,728 B2Granted
Optical line termination node and passive optical network
AssigneeADVA Optical Networking SE
InventorKlaus Grobe
Life of this patent
Estimating the term…
Abstract
An optical line termination node has a first connection arrangement for connecting a working fiber, a second connection arrangement for connecting a protection fiber, a transceiver arrangement having first primary link and a first secondary link, and protection switching means configured for being switched either in a working operating state or in a protection operating state.
Claims15
Optical line termination node for a passive optical network, said node comprising
- a first connection arrangement for connecting a working fibre to the node;
- a second connection arrangement for connecting a protection fibre to the node;
- a transceiver arrangement having first primary link and a first secondary link;
- and
- protection switching means configured for being switched either in a working operating state or in a protection operating state, in said working state the first connection arrangement being coupled with the first primary link for data communication over the working fibre and in said protection state the second connection arrangement being coupled with the first secondary link for data communication over the protection fibre;
- wherein said node comprises
- first coupling means being arranged for forwarding seeding light to the transceiver arrangement via the protection switching means and the first primary link and
- second coupling means being arranged for forwarding the seeding light to the transceiver arrangement via the protection switching means and the first secondary link, wherein said second coupling means are separate from said first coupling means.
5 more elements
Passive optical network, comprising an optical line termination node, said node comprising
- a first connection arrangement for connecting a working fibre to the node;
- a second connection arrangement for connecting a protection fibre to the node;
- a transceiver arrangement having a first primary link and a first secondary link;
- and
- protection switching means configured for being switched either in a working operating state or in a protection operating state, in said working state the first connection arrangement being coupled with the first primary link for data communication over the working fibre and in said protection state the second connection arrangement being coupled with the first secondary link for data communication over the protection fibre;
- wherein said node comprises
- first coupling means being arranged for forwarding seeding light to the transceiver arrangement via the protection switching means and the first primary link and
- second coupling means being arranged for forwarding the seeding light to the transceiver arrangement via the protection switching means and the first secondary link, wherein said second coupling means are separate from said first coupling means.
5 more elements
Dependencies are inferred from the claim text.