Canada Light Path Protection Switch

Specifications: The dedicated resource restoration scheme in a survivable optical network supports faster restoration time and guarantees on the restoration ability. The 1+1 protection method is an elementary way of the dedicated restoration scheme. In this method, a dedicated link-disjoint backup route is set up in advance at the time of connection setup. Upon a link failure on the primary path, the end-nodes of the connection start utilizing the backup route. The primary path is the default path to be protected by the light path protection switch. The secondary path is used to restore the light path connection in the event that path failure happened at the primary path such that the primary path light power is lower than a preset thresahold value, or vice versa. The status of both primary and secondary paths is always monitored by a microprocessor. Features: 1. Automatic optical switching within 25 ms 2. Independent of transmission rate and format 3. Monitoring on both primary/secondary paths 4. Exceeds 40 db monitoring dynamic range 5. Alarm/status notification via fax/on-screen alert, email, sms message 6. Accessible via the internet and dial-up 7. Pc and pda(pocket pc) gui available 8. Data-logging on optical power level and alarm history