Knowledgebase
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800G vs 1.6T: DC Integrator Recommendation for Poland and CEE
800G or 1.6T? The TCO calculator shows a difference of over €215,000 per 100 ports over 5 years. A 10-question checklist before signing and 3 mistakes that cost money.

800G or 1.6T? How to Choose When Your Data Centre Grows with AI
An 800G module costs $700–900, 1.6T costs $2,600–3,100 and requires new switches. For 99% of data centres in Poland the choice is simple. See why.

QKD in Optical Networks: Protocols, Deployment, and Real Range Limitations
How QKD works at the physical level, which protocols make sense for which application, how to deploy QKD on existing infrastructure, and where the hard limits of this technology lie.

QKD: When to Deploy, What It Costs, and 12 Questions Before Signing a Contract
You already know why the quantum threat is real. Now one question: what to do in practice? Whether your organization needs QKD, when to start, and what to check before signing a contract with a vendor.

Your Encryption Has an Expiry Date. QKD Is the Only Mathematically Certain Answer.
The data you protect today must remain secure for its entire sensitivity period. A quantum computer could break RSA-2048 by 2036. Here is what you need to know and when to start acting.

400ZR vs 800ZR: ROI Calculator, Purchase Checklist and 2026 Recommendation
You have a DCI network or you are planning one. TCO calculator, purchase checklist, and a clear recommendation — no theory, just numbers and specifics. Saving of €6,670 per link over 5 years.

400ZR vs 800ZR vs OpenZR+: Full Technical Analysis for DCI Network Engineers 2026
400ZR is the most widely deployed coherent standard in history. 800ZR is growing at 145% CAGR to 2029. Complete technical analysis — DSP fundamentals, operating modes, OSNR, economics per Gbps, and roadmap to 1600ZR.

400ZR, 800ZR, OpenZR+: What Are They and Which DCI Network Needs Them?
ZR standards are the technology that allowed companies to cut out external transponders and connect coherent optics directly to a router port. Less equipment, a lower energy bill, and more freedom when choosing partners.

GBC Photonics S100 - nowa platforma do budowy systemów DWDM
GBC Photonics S100 to aktywna platforma DWDM. Umożliwia pełny monitoring warstwy optycznej, automatyczne przełączanie tras, intuicyjne zarządzanie przez WEB GUI i SNMP oraz elastyczną rozbudowę bez wymiany infrastruktury.

Trendy z OFC 2025 : nowe oblicze sieci: fotonika, automatyzacja i światłowody powietrzne
Podczas OFC 2025 w San Francisco mogliśmy zobaczyć, w jakim kierunku zmierza świat komunikacji optycznej. Nowe systemy koherentne, optyka współpakowana, fotonika zintegrowana, automatyzacja sieci z wykorzystaniem sztucznej inteligencji oraz światłowody z pustym rdzeniem to tylko niektóre z przełomowych trendów, które już dziś kształtują przyszłość sieci nowej generacji.

Nowa aktualizacja dla SRD
Aby zapewnić dalsze wsparcie SRD Go i starszych wersji programatorów, konieczna jest aktualizacja oprogramowania.

The open optical network approach
Open optical networks are based on interoperability, enabling components from various suppliers to work together in a single infrastructure. Unlike traditional models that restrict operators to a single vendor, open networks ‘unlock’ each layer of the infrastructure.

Układ sił na rynku optycznym. Kiedy otwarte sieci i 800G?
Marcin Bała w obszernej rozmowie z Łukaszem Decem z Telko.in ujawnia kulisy dynamicznie rozwijającego się rynku technologii optycznych.

Building a Sustainable Digital Infrastructure: A Comprehensive Guide to Green Data Centres
Read our white paper on green data centres. Find out how you can significantly reduce energy consumption and environmental impact.

How to reduce e-waste in telecommunications?
May 17 was designated by the United Nations as World Telecommunication and Information Society Day. This is a good time to reflect on how the telecommunications sector can have an impact on halting the growth of e-waste.

SRD 5 — new optical module programmer
Salumanus announces the launch of Smart Recode Device 5 GBC Photonics (SRD 5). It is an optical module programmer that allows you to save thousands of dollars on the management of optical networks.
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Networking Trends 2024
Open networks, 800G or quantum encryption - what has the chance to change telecommunications and data center infrastructure in 2024? Check out the predictions of Salumanus experts.

How to ensure the security of transmission in urban fiber networks? Part 2.
From eavesdropping to encryption. Learn about fiber network monitoring methods and new encryption technologies.

How to ensure the security of transmission in urban fiber networks? Part 1.
Fiber network protection requires various redundancy mechanisms for stable data transmission.






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