Link system for photonic cross connect and transmission apparatus
AssigneeKddi Corporation
InventorsTakehiro Tsuritani, Tomohiro Otani
Life of this patent
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Abstract
Between photonic cross connects (PXCs) 3 and 4, an in-use system path passing through transmission apparatus (WDMs) 5 and 7 are set, and a backup system passing through transmission apparatus (WDMs) 6 and 8 is set. The WDMs 3 and 4 link to the PXCs 5 and 7 and release masking therebetween when the in-use system path is set, and set masking therebetween when the in-use system path is deleted. The WDMs 5 and 7 included in the in-use system path transmit an alarm to a monitoring system when an input light is turned off, and the WDMs 6 and 8 included in the backup system path do not transmit an unintended alarm to the monitoring system even when the input light is turned off.
Claims4
A link system for photonic cross connect and transmission apparatus in an optical network in which an in-use system path and a backup system path are set, wherein
- when an in-use system path is set based on an in-use system path setting request signal containing an in-use system path switching set signal, a photonic cross connect included in the in-use system path transmits a masking release control signal to an adjacent transmission apparatus included in the in-use system path based on an in-use system path setting completion signal, the photonic cross connect and the transmission apparatus links to each other and releases masking there between, and
- when an in-use system path is deleted based on an in-use system path delete request signal, a photonic cross connect included in the deleted in-use system path transmits a masking set control signal to an adjacent transmission apparatus included in the deleted in-use system path based on an in-use system path delete completion signal, the photonic cross connect and the transmission apparatus links to each other and sets masking therebetween.
Dependencies are inferred from the claim text.