![]() ![]() Hence no one entity is likely to have access to all of the capacity of a cable, which could be up to 2.1 Tbps (Terabits per second), in the case of the GCN system in the eastern Caribbean. Finally, most submarine cable systems are owned by a consortia of telecoms companies, with the bandwidth being shared by the members. Speeds improved rapidly in the last few years, with 40 Gbit/s having been offered on that route only three years earlier in August 2009… (Source: Twisted Sifter)ĥ. Transmission speeds on submarine cables are dependent on, among other things, the condition of the cable, the distance being covered and the equipment connected to the cable.Īs of 2012, operators had “successfully demonstrated long-term, error-free transmission at 100 Gbps across Atlantic Ocean” routes of up to 6000 km, meaning a typical cable can move tens of Terabits per second overseas. The United Nations Convention on Law of the Sea (1982)Ĥ.The Geneva Conventions of the Continental Shelf and High Seas (1958).The International Convention for the Protection of Submarine Cables (1884).According to the International Cable Protection Committee, the following international treaties protect submarine cables: In the aftermath of the disaster, one of the first order of business was to re-establish connectivity, which in the first instance, was achieved via satellite and other wireless solutions.ģ. You may recall that the 2010 earthquake in Haiti had damaged the submarine cable systems to that country. Fishing trawlers, anchors, earthquakes, turbidity currents among other things, are typical culprits. On the other hand, once submarine cables are deployed, they tend to be more cost-effective and reliable on major routes.Ģ. ![]() ![]() ![]() However, wireless services can be expensive for consumers, have speed limitations, and for voice and Internet services in particular, the time delay in reception, due to distance, can result in poor service quality. Similar to fibre optic cables on land, submarine cables are expensive to deploy hence many developing countries tend to rely on wireless, especially satellite, solutions to provide international connectivity. Table 2: Details on select submarine cables in the Caribbean (Source TeleGeography) A few additional things to know…ġ. The cables shown have a maximum upgradeable capacity of at least 5 Gbps (or 5,000 Mbps). Figure 1 is an excerpt of the global map and shows submarine cables and their landing points around the Caribbean basin. The data used is from Global Bandwidth Research Service, a TeleGeography property, and is updated regularly – the most recent was 31 January 2013. TeleGeography maintains a free interactive map of active and planned submarine communications cable installations worldwide. Although most of us in the Caribbean might know that submarine communications cables are used in the region to provide international (or extra-territorial) connectivity – to the Internet and other international gateways – we might not truly appreciate how connected we are. Although there is generally much to rejoice whenever a new cable is commissioned, it was more so the case with Cuba, since the ALBA-1 is its first. In the past few weeks, Cuba commenced transmissions to the Internet on the ALBA-1 submarine cable, which runs between Cuba and Venezuela, and has a landing point Jamaica. A quick overview of submarine communications cable systems in the Caribbean. ![]()
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