In a field test carried out on the service provider’s network, the equipment showed excellent performance, reaching a transmission rate of 800 Gb/s per optical channel.
In order to expand the traffic capacity of its optical backbone, which currently covers more than 150 cities in the Brazilian Northeast, Brisanet is investing in the new LightPad Max transponder platform recently launched by Padtec. Developed to meet market demands for ever-increasing transmission capacity, the new transponder underwent field testing in a real environment on Brisanet’s network, where it demonstrated excellent performance.
This is a standalone dual transponder with two line interfaces of up to 1.2 Tb/s and a total capacity of 2.4 Tb/s per module, for use over medium, long and ultra-long distances. In a field test conducted on Brisanet’s DWDM network – which already uses 400 Gb/s transponders from Padtec – the new equipment achieved a transmission rate of 800 Gb/s per optical channel over a stretch of approximately 350 kilometers, between the cities of Juazeiro do Norte and Pereiro, both in Ceará state.
“With this transponder, we will double the traffic capacity per optical channel, from 400 Gb/s to 800 Gb/s, using the same network infrastructure,” says Daniel Estevam, Network and Optical Transmission Manager at Brisanet. “In addition to expanding the network capacity, we also intend to reduce the cost per bit transmitted and the cost of electricity,” he adds.
According to the executive, the new modules will be installed at the main traffic junction points of Brisanet’s network, which connects the entire Ceará state and extends to several cities in states of Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe, Bahia and Piauí. At the main backbone junction points – which connect Fortaleza, Juazeiro do Norte and Sobral, in Ceará state; Natal and Pau dos Ferros, in Rio Grande do Norte state; Recife and Caruaru, in Pernambuco state; Campina Grande and João Pessoa, in Paraíba state; Paulo Afonso, in Bahia state, and Teresina, in Piauí state – the current traffic capacity is 2.4 Tb/s and, with the new transponder, it will be increased to 3 Tb/s. “With this, in addition to meeting the current demand of our customers, we are preparing the network for future demands and services, which will come with 5G and FWA (Fixed Wireless Access)”, concludes Estevam.
Argemiro Sousa, Padtec’s Chief Operations Officer for Equipment, emphasizes that the innovative technology developed by the company for the new LightPad Max platform allows it to offer a higher transmission capacity than competing products – as was the case in the field test conducted on Brisanet’s network. “One of the technical innovations of the new generation of transponders is the transmitted symbol rate, which is up to double that available in current equipment,” he says. “This higher rate allows for greater transmission capacities in DWDM networks using a smaller number of channels, which represents cost savings per bit and a significant reduction in energy consumption,” concludes the executive.
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