Optical Networking in Electric Power Distribution

Protected Optical Rings in Electric Power Distribution

Problem description 

Monitoring and remote control of power production and distribution systems includes a certain number of critical elements, requiring a network infrastructure with extremely reliable features.
Currently, telecommunication transmission systems for power are still mainly based on TDM technology, which largely exploits the opportunities offered by ring traffic protection services, media diversity, HW duplication, etc. However, IP solutions are becoming more and more interesting even in power production and distribution. The TDM and IP worlds are merging.
 
SmartGrids are on their way. Remote IP based power metering is not the final stage. Power Distributions will soon be remotely switching the machines on during the night when excess power is available. Standards like IEC 61850 will make underlying telecommunication networks an absolute necessity.
Production and distribution of power is often performed in extremely unfriendly environments, hot or cold. Nevertheless, telecommunication equipment must also be fully functional in such hostile environments.

Proposed solution

SparkLight ADM-16 and ADM-1/4 are ideal building blocks for a reliable networking infrastructure, delivering both synchronous and packet communications. Legacy interfaces such as E1 provide for interconnection of TDM telephone switches. Additional MUX devices also enable connecting low speed equipment such as measurement probes for process control or directly attached emergency telephone sets. On the other side, STM-16 trunk cards deliver synchronous speeds of 2,5 Gb/s. Aggregating four STM-16 ports into a WDM module will deliver speeds of up to 10 Gb/s over a single optical fiber. Packet interfaces, Gigabit Ethernet or 10/100 Ethernet will enable smooth transition into IP world. Adding a remote IP power meter, an IP video camera or an IP phone to the network will be reduced to plugging-in an Ethernet patch cable. Exceeding bandwidth could easily be turned into money by selling the bandwidth for Internet access to operators or end-customers.

Iskra has equipped standard optical and radio telecommunication systems with many additional features to suit best into rugged, industrial environments. Along with synchronous communications, the devices provide a smooth transition from TDM to IP technology. Iskra optical transmission family SparkLight and microwave transmission family SparkWave are adapted for operation at extreme temperatures. The mechanical design allows effective maintenance interventions even under the most hostile weather conditions.
 

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