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All-optical backbone network for railways enables Transnet’s digitisation

Home Engineering Electronic - Instrumentation & Control All-optical backbone network for railways enables Transnet’s digitisation

TRANSNET has been working with Huawei to build an upgradable and easy-to-maintain transmission backbone network featuring high bandwidth and reliability, according to a statement issued by Huawei in mid-November. The network enables the real-time and efficient transmission of a high volume of business data.

Transnet has 114 backbone nodes and numerous optical cable lines across the country, giving it an advantage regarding bandwidth operations.

The existing synchronous digital hierarchy (SDH) network had many limitations. The SDH 2.5 G/10 G backbone network had reached the end of its lifecycle and was unable to support Transnet’s production and operations. Operating the obsolete SDH network was not efficient and integration with newer technologies was troublesome, hampering digitalisation initiatives and expansion.

In response, Huawei deployed the all-optical backbone network solution for railways, building an independent large-capacity wavelength division multiplexing (WDM) transmission network that meets Transnet’s business and production security requirements.
The project used next-generation intelligent and simplified OptiX OSN 9800 series products.

These intelligent, large-capacity MS-OTN products integrate optical and packet functions, providing a transmission capacity of 100 G and higher. They feature high reliability, low latency, and deterministic quality. The products support end-to-end native hard pipe (NHP) networks from the access layer to the transport layer. The upgraded system can centrally accommodate Transnet’s different businesses in multiple layers and interfaces, ensuring independent and secure operations.

To enhance the stability and scalability of the operation network, Transnet adopted Huawei’s dense WDM (DWDM) technology that supports a single wavelength capacity of at least 100 Gbit/s. This enabled Transnet to upgrade its 100 G network to provide customers with expanded capacity, faster speed, and more redundant bandwidth connections.

Huawei’s all-optical backbone network solution for railways delivers much-needed network capacity to support Transnet’s digital transformation and cloudification. Transnet uses the upgraded network to ensure reliable and high-bandwidth network connections for its rail operations and can offer customers bandwidth services, such as leasing.

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