
- Environments
- Nuclear facility
Public and private sector
Nuclear facility
The regulator, not the operator, sets what has to be provable — and provability shapes the architecture.
- Area
- Data diodes
- Architecture patterns
- 1
- Products used
- 1
The problem
What makes it hard
Safety systems and operational monitoring need to report outward, while digital routes inward towards protection systems must not exist.
Here the sealing and the inspectability of the construction matter more than performance. That the one-way property can be inspected physically — a riveted enclosure, several barriers in series — is the argument itself. Exactly what the Swedish regulatory framework requires is not something we can document from the catalogue; ask the regulator, not the supplier.
How it is built
Log export and evidence retention
Syslog passes natively without middleware, and the chain of custody gets stronger as a side effect.
See the full pattern- One-way path
- Data path
- Path that does not exist
In the catalogue
Equipment from the catalogue
Built from: Rack 19" 3 HU 16 Slots SNMP 60-00-6918.

Reading and references
Explained in
Named customer references are not published. What we can show is the solution area this environment belongs to, and the reasoning behind the design.
Environments
Environments with the same problem
The technology is the same; the buying process usually is not.
- Log export to a SOCThe one flow where the diode is cheaper and simpler than the alternative — which is why it is almost always the right first installation.
- Financial market dataMulticast passes natively, which is exactly the distribution model market data uses.
- Evidence and forensic chainTransaction logs and per-transfer hash verification are what make the chain documentable.
- Backup of a protected networkBackup is the only flow where the volume is large, completeness is absolute and the time window is set by someone else.

Next step
Describe your environment
If yours is close to this one but not the same, that difference is usually where the design decisions are. Tell us what it looks like.
Verified credentials
All certifications- Swedish Armed ForcesM-numbered equipmentMain supplier, Total Defence

- Government of SwedenSupplier to Swedish authoritiesPolice · FMV · FOI

- NATOCertified TEMPEST supplierSDIP-27 · Level A & B

- ISO 9001 14001ISO certifiedQuality & environmentDownload certificate (JPG)
- SOFFDefence industry memberExport control frameworks

- Made in SwedenDesigned & built in StockholmSecure supply chain
