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Telkom to build on WACS

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The introduction of the West African Cable System into Telkom’s portfolio of undersea cables, combined with the EASSy and EIG cables completes a high-capacity ring between SA and Europe. This will allow Telkom to offer more diverse and redundant global services to its customers.

Today’s launch of the ultra-high capacity West African Cable System (WACS) linking Southern Africa and Europe is a significant addition to Telkom’s vast international submarine cable portfolio.

The introduction of WACS into Telkom’s undersea cable portfolio will complete the company’s second ring of capacity around the African continent. The S3WS, EASSy and SMW3 cables already form a ring around Africa. With the introduction of WACS together with EASSy and EIG a high capacity ring between SA and Europe has now been formed.

Equipped with extensive undersea cable development and maintenance experience as well as the availability of the necessary facilities Telkom was given the responsibility of landing WACS in South Africa.

Since the landing of the cable in April 2011, a new Cable Landing Station has been established in Yzerfontein, north of Cape Town. The Cable Landing Station is owned, operated and maintained by Telkom however the costs of the facilities will be shared by the WACS Consortium parties using the station.

Telkom now operates submarine cable gateways at Mtunzini, Melkbosstrand and Yzerfontein providing South Africa with three international fibre gateways to minimise the risk of complete isolation in the event of a natural disaster or cable outage.

The commercial availability of WACS provides Telkom with significant capacity at each of the three cable gateways into and out of the country making it possible to offer more diverse, redundant, high capacity global service solutions.

‚The demand for greater capacity and faster speeds is ever-present. The introduction of WACS will deliver connectivity to the continent like never before and Telkom is ready to deliver,‚ says Mr Casper Kondo Chihaka, Telkom’s Managing Executive of Wholesale Services.

Designed to support present and future Internet, e-commerce, data, video and voice services, the capacity of the entire system is 5.12 terabits per second (Tbps). The system makes use of dense wavelength division multiplexing (DWDM) technology, which enables the transport of multiple wavelengths over a single fibre pair, as well as multiplication of capacity.

The initial capacity of WACS is over 500 Gbps and is upgradable at any stage of the project life span. The robustness of the design will also enable the system to accommodate the latest developments in submarine fibre-optic technology.

‚Capacity and speed is important and Telkom certainly has this, but depth of experience and the ability to innovate and utilise all the capabilities in the network to extract the value is crucial,‚ says Mr Chihaka.

Telkom with its more than 143,000km terrestrial fibre network comprising amongst others of a DWDM (dense wavelength division multiplexing) / ASTN(Automatically Switched Transport Network) is the only operator that can bring the capacity afforded by WACS closer to business, industry and consumer markets in South Africa.

‚Not only do we have extensive national layers of fibre network but also regional, metro and access layers. Telkom has begun a network transformation program where one of the themes is to roll out 3,700 remote multi-service access nodes (MSANs) that will replace 2,700 older generation cabinets and add another 1,000 to their number and we also plan to replace the central office site that has digital subscriber line access multiplexer’s (DSLAMs) with multi-service access nodes (MSANs) over a five year period. South Africans desire more bandwidth, more content and higher speed and Telkom is hard at work to deliver the international content and applications transported on our high capacity submarine cable projects to our customers‚ he says.

MSANs can be used to offer higher speed ADSL (ADSL 2+), very-high-bit-rate digital subscriber line (VDSL), and fibre-to-the-home (FTTH) services. These new cabinets offer speeds of up to 1Gbps using fibre as the last mile, or up to 40Mbps using Telkom’s existing last-mile copper infrastructure, thus taking the huge capacity of WACS to the end user.

‚This backed by world class and world best practice Network Operations Centre and our resources make us a preferred ICT services provider,‚ he concluded.

Additional Information

The core Telkom submarine cable portfolio comprises the following systems:

· SAT3/WASC/SAFE (S3WS). The equipage on SAT3/WASC and SAFE comprise 340Gb/s and 440Gb/s respectively, the total capacity of the two cables are currently larger than any other cable landed in SA, including WACS. The S3WS cable system is currently undergoing tests to determine the number of 40Gb/s wavelengths that can be deployed on the cable. Telkom is the single largest owner of S3WS Capacity.

¬∑ Eastern African Submarine Cable System (EASSY). The EASSy was physically landed on the South African waters in early February 2010 and commenced commercial operation on 31 August 2010. The EASSy cable’s first upgrade increased the system equipage by more than 600% or by 160Gb/s per fibre pair. The first upgrade was completed on 11 January 2012 taking the total equipped capacity to 380Gb/s. EASSy has a design capacity of 1.4Tb/s measured in 10Gb/s wave technology but could be three to four times as much if 40Gb/s wave technology ois used.

· Europe India Gateway (EIG). EIG commenced partial service on 23 February 2011 whilst awaiting the Egypt crossing. One of two land based routes across Egypt was completed at the end of 2011 allowing the bulk of the EIG system to be taken into service on 14 January 2012. The cable system has a design capacity of 2.56Tb/s measured in 10Gb/s wave technology. The design capacity could be much higher if 40Gb/s or 100Gb/s wave technology is used.

· Columbus 3. The Columbus 3 system is routed between Portugal and the USA, providing in conjunction with SAT3/WACS, the shortest latency route between South Africa and USA.

¬∑ South East Asia ‚ Middle East ‚ Western Europe SEA-ME-WE3 (SMW3). Telkom actively use the SMW3 cable as an alternative to EIG for extending EASSy capacity beyond East Africa to Europe.

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