TEMPEST · RÖS · Data diodes · Stockholm, Sweden
Security that can't be misconfigured, because it's physical.
Software can be patched, bypassed and misconfigured. A photon cannot travel backwards. Fibersystem builds the hardware that makes security a physical property – TEMPEST/RÖS certified equipment, data diodes and fiber optic communication, designed and built in Stockholm for over 40 years. NATO-certified TEMPEST supplier and main supplier to the Swedish Total Defence.
Browse the certified catalogueDownload documents
121 products · TEMPEST Level A & B · Swedish Armed Forces M-numbers
- Years in secure communications
- 40+
- TEMPEST/RÖS-certified products
- 49
- TEMPEST levels certified
- A & B
- Design & development in Stockholm
- 100%
Verified credentials
All certifications- NATOCertified TEMPEST supplierSDIP-27 · Level A & B
- Swedish Armed ForcesM-numbered equipmentMain supplier, Total Defence
- Government of SwedenSupplier to Swedish authoritiesPolice · FMV · FOI
- ISO 9001 14001ISO certifiedQuality & environmentDownload certificate (JPG)
- SOFFDefence industry memberExport control frameworks
- Made in SwedenDesigned & built in StockholmSecure supply chain
Application areas
What do you need to secure?
Showing all six application areas.
- TEMPEST Equipment
Interception-proof workplaceEvery monitor, keyboard and printer radiates — and can be reconstructed at a distance.
See the solution → - Data Diodes
One-way data transferAny connection that can carry data in can carry an attack in.
See the solution → - Secure Video Conferencing (VTC)
Secure meetings & VTCA video conference is only as secure as the leakiest device in the room.
See the solution → - Fiber Optic Communication
Secure & isolated linksCopper carries more than your signal. Fiber does not.
See the solution → - KVM & HDBaseT Solutions
Multi-domain controlSeveral networks at different classification levels, without them ever touching.
See the solution → - Data DiodesFiber Optic Communication
Protect industrial & OT networksAttacks on critical infrastructure are daily operations, often state-sponsored.
See the solution →
Reference customers
Who already relies on this equipment
7 references
Defence and government
Where the requirement is certification, not preference
- Swedish Armed ForcesFörsvarsmakten
- FOIDefence research
Why Fibersystem
Three things our competitors cannot say at the same time
Sweden's reference supplier
Main supplier to the Swedish Total Defence and a NATO-certified TEMPEST supplier. Our equipment is installed in command centres, hospitals and power grids – and carries Swedish Armed Forces M-numbers, not just a datasheet claim.
Solutions by sectorFrom idea to certified end product
Most of this catalogue began as one customer's requirement. Design, development, certification and series production happen in one building in Stockholm – no outsourced engineering, no third-party supply chain. Missing an interface, a protocol or a form factor? That is a project, not a problem.
How we workCertified, not claimed
TEMPEST Level A & B, RÖS U1/U2, SDIP-27, ISO 9001 and 14001 – certified per product by accredited laboratories. Every claim on this site has a document behind it. Ask for it.
See every certification
Understand the threat
Electromagnetic eavesdropping is real – and growing
Every monitor, keyboard and printer radiates signals that can be reconstructed at a distance – no malware, no trace. Our knowledge section explains today's threat level and how certified hardware meets it, for the public and private sector alike.
Today's threat level
Attacks on power grids, hospitals and public authorities are daily operations, often state-sponsored. Why software defences are necessary but insufficient – and what to protect physically.
TEMPEST and RÖS explained
All electronics leak electromagnetic signals that can be intercepted at a distance. TEMPEST (RÖS in Sweden) certification levels A, B and C define how well equipment is protected.
What is a data diode?
A data diode is hardware that physically enforces one-way data transfer between networks. How it works, why it beats a firewall for critical systems, and where it is used.
How it fits together
Two classified zones, one direction each
The catalogue is the parts list. This is the sentence the parts form — and the reason it cannot be misconfigured: the direction sits in the optics, not in a rule someone can change.
- Approval document per article numberThe two diodes are requested separately — a supplier statement says nothing about the unit.
- The direction sits in the opticsNo rule, no configuration, no setting that can be changed afterwards.
- One-way path
- Data path
- Path that does not exist
From the catalogue
Four products that carry the claim
TEMPEST Level A · RÖS U1
Tower Workstation 27"
- CPU
- Intel CPU i7-9700E
- Hard drive
- Removable 512 GB SSD
- Optimal (recommended) resolution
- 3840 x 2160 (4K UHD)
Product no 60-00-7884
TEMPEST Level A · RÖS U1
VTC Desk 24"
- Optimal (recommended) resolution
- 1080p @ 60 Hz
- Display area
- 528 x 298 (BxW) mm
- Brightness, typical
- 300 cd/m²
Product no 60-00-9047
Latest news
News & press
Fibersystem Is Now A Certified Supplier Of TEMPEST Equipment To NATO!
We are proud to announce that Fibersystem is now a certified supplier of TEMPEST equipment to NATO.
FIBERSYSTEM LAUNCHES VTC 24”, A TEMPEST LEVEL A ALL-IN-ONE VIDEO CONFERENCE SOLUTION FOR SECURE MEETINGS
We are excited to announce the launch of our new product, VTC DESK 24" – a secure video conference solution certified to both TEMPEST Level A and RÖS U1.
Fibersystem Unveils Enhanced Website And Premieres Advanced TEMPEST Level A And RÖS U1 Certified Products
We are excited to announce the launch of our new website, coupled with the introduction of a groundbreaking range of products certified to meet TEMPEST Level A and RÖS U1 standards.
Next step
Tell us what you need to secure
Describe the environment and our engineers in Stockholm respond with a concrete proposal – standard products, a complete workplace, or a development project. Certification documents on request.