This paper seeks to review the diversity requirements in modern submarine cable systems and discusses how increased diversity can be built into new telecoms networks. It assesses the specific requirements related to submarine and terrestrial routes, civil works and infrastructure.
The paper also reviews customer requirements for diversity, the likelihood of outages and the trade-off between risk and cost. The drivers for new diverse routes are considered and the EllaLink system is presented as a case study for designing diversity into future networks.
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