Hardware
CS-50 optical data diode
Our first product — a rugged, DIN-rail-mounted optical diode with 50 Mbps sustained throughput, made in the USA, and bundled with ContinuitySec cloud fleet monitoring.
Pricing
CS-50 + cloud monitoring
$199/month
Starting price per diode · annual terms available
- CS-50 optical hardware (DIN-rail, 50 Mbps)
- ContinuitySec fleet dashboard & alerts
- Outbound telemetry agent (link, throughput, RX rejected)
- 30-day telemetry retention
- U.S.-based engineering support
What drives final pricing
$199/month is our entry point for a single CS-50 at one site. Volume, multi-site fleets, and extended retention are quoted individually.
| Diodes per site | 1 included at starting price; fleet discounts for 3+ |
|---|---|
| Additional sites | Per-site monitoring tier — contact sales |
| Pilot / eval | Demo dashboard available now; hardware pilots on request |
Form factor
Snap onto standard 35mm DIN rail beside PLCs and RTUs. No rack chassis required — built for control panels, substation cabinets, and remote edge enclosures.
How optical isolation works
OT / SCADA
IT / SOC
Data crosses an internal optical link. There is no electrical return path and no shared bus between zones — reverse traffic is physically impossible, not merely blocked by rules.
CS-50 vs. firewall
| Firewall | CS-50 optical diode | |
|---|---|---|
| One-way guarantee | Policy-based | Physics-based (optical gap) |
| Human error | Rules can be changed | Cannot enable reverse path |
| Evidence for audits | Configuration exports | Hardware conduit + cloud event history |
| Monthly visibility | Separate SIEM licensing | Included from $199/mo |
CS-50 specifications
| Model | CS-50 — first-generation ContinuitySec optical diode |
|---|---|
| Isolation | Internal optical data path — hardware-enforced unidirectional transfer |
| Max throughput | 50 Mbps sustained |
| Mounting | DIN 35mm rail (IEC 60715), vertical panel mount |
| Enclosure | Rugged metal housing, IP30 panel-mount |
| Interfaces | 1× Fast/Gigabit Ethernet per side (high / low), auto-negotiation |
| Latency | < 2 ms typical store-and-forward |
| Operating temp | −20 °C to +60 °C |
| Power | 24 V DC (18–32 V DC), < 12 W typical |
| Dimensions | 45 × 99 × 114 mm (W×H×D) |
| Indicators | Power, link, TX activity, fault |
| Origin | Designed, manufactured, and assembled in the USA |
| Cloud monitoring | ContinuitySec platform — from $199/month per diode |
Higher-throughput models are on the roadmap. Contact us for historian-scale or multi-gigabit requirements.
Ideal for
Syslog & event export
50 Mbps covers typical OT syslog, SNMP trap forwarding, and security event streams to IT or SOC zones.
Edge control panels
Compact DIN-rail module for remote sites, RTU cabinets, and substation panels where space and 24 V DC matter.
Pilot deployments
Prove one-way flow and fleet monitoring at a single perimeter before rolling CS-50 across a multi-site program.
Why customers choose CS-50
Defensible separation
Auditors and CISOs want proof the boundary is physical. An optical diode documents a true one-way path — not a firewall rule that can be misconfigured overnight.
Predictable cost
Hardware plus cloud monitoring from $199/month per diode — no separate SIEM bolt-on required to know your link is up.
Made in the USA
Domestic design and manufacturing for federal, utility, and defense-adjacent programs.
Monitored from day one
Every CS-50 reports link status and throughput to ContinuitySec. Know a diode is down before your compliance review does.