GPD Cube a FTTH Validation System

The GPD Cube offers a new approach to FTTH validation that surpasses traditional portable testing methods. Rather than relying on sporadic field measurements, the Cube deploys autonomous units across the network to continuously analyze real operation

SARAGOSSA, MAY.5.2026

A Distributed FTTH Validation System

We are proud to introduce the GPD Cube, which takes FTTH validation beyond traditional portable testing. Rather than relying on sporadic field measurements, the GPD Cube deploys autonomous units across the network to continuously analyze real operating conditions. This distributed architecture provides permanent visibility of network behavior, enabling faster fault detection, deeper diagnostics, and more efficient troubleshooting.

From Field Testing to Distributed Intelligence

Traditional FTTH testing relies on handheld instruments used during installation or troubleshooting. While effective, this approach only provides a snapshot of the network. The GPD Cube complements these tools by providing continuous, distributed visibility across the network, transforming testing into a permanent capability rather than a one-time action. By placing compact Cube units at key locations, near OLTs, along the distribution network, and close to ONTs, it becomes possible to continuously monitor signaling, traffic, and services under real conditions.

Fig 1. Distributed deployment: Cubes positioned between OLT and ONTs capturing real traffic and control signaling (PLOAM / OMCI / Ethernet).

Key Capabilities

The GPD Cube integrates analysis, monitoring, and remote access into one compact, deployable system:

  • Autonomous Operation: Once installed, Cube units operate independently and continuously analyze network conditions without the need for field intervention.
  • Distributed Architecture: Multiple Cube units provide a correlated, end-to-end view of network behavior across different segments.
  • Remote Access & Control: Engineers can access all deployed units remotely, reducing the need for on-site visits.
  • Protocol Awareness: Provides visibility into control planes and user traffic, enabling a precise understanding of FTTH operation.
  • Real Network Conditions: Captures transient issues and intermittent faults that are impossible to reproduce in a lab setting.
  • Scalable Deployment: Provides everything from single-node diagnostics to large-scale network observability.
Use Case – Intermittent FTTH Fault Detection

One challenging issue in FTTH networks is the presence of intermittent faults, temporary degradations that disappear before a technician can arrive onsite. These issues are often difficult to reproduce with traditional tools.

With the GPD Cube, however, this process is simplified:

  • Continuously monitor downstream signaling
  • Capture upstream behavior when placed closer to the subscriber
  • Record events such as ONU re-registration, bandwidth fluctuations, and OMCI inconsistencies over time
  • Allow engineers to access the data remotely and correlate events across nodes

Result:

  • Faster root cause identification
  • No need for repeated onsite interventions
  • Improved service continuity

Fig 2. Correlation of events between distributed Cube nodes enabling detection of transient faults

Understanding the Network in Real Time

The GPD Cube transforms network operations from reactive to proactive. Rather than waiting for failures and dispatching field engineers, operators can now detect anomalies early on, analyze behavior remotely, and take action before service degradation becomes critical. This reduces operational costs while improving reliability and the customer experience.

Who can benefit?
  1. Telcos:  Continuous visibility of FTTH networks and faster fault resolution
  2. Service providers: Improved QoS/QoE through early detection of anomalies.
  3. System integrators: Validation of deployments under real operating conditions.
  4. OLT/ONT vendors: Interoperability and behavioral validation in live networks, not just lab environments.

A New Approach to FTTH Validation

With the GPD Cube, testing becomes a continuous, distributed process embedded within the network. It becomes a continuous, distributed process embedded within the network. This shift enables better engineering decisions, faster troubleshooting, and a deeper understanding of real-world FTTH behavior.

Fig 3. GPD Cube operating as a permanent validation node within the network.

Ready to transform your network visibility?

The GPD Cube introduces a new paradigm of distributed, autonomous, and always-on validation through autonomous nodes, providing continuous network insight beyond traditional testing.

Part of the ALBEDO Ecosystem

The GPD Cube is part of our ecosystem and extends ALBEDO’s FTTH portfolio.

  • Portable analyzers (GPD 10k7) for field troubleshooting and certification
  • Multi-purpose testers (xGenius) for installation and protocol validation
  • GPD Cube for continuous, distributed monitoring in live networks

These products together provide a complete workflow, from deployment to long-term operation.

+ info… GPD Cube

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