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Browse the departmentHome » Products » Meters & Fusion Splicers » GPON / XGS-PON Analyzers » ALBEDO GPON Doctor 9k7 – XGS-PON Protocol Analyzer (10G)
The ALBEDO GPON Doctor 9k7 is a portable, battery-powered protocol analyzer for XGS-PON networks (10G PON). It processes OAM, PLOAM and OMCI information, captures data bit by bit in both directions, reconstructs the network topology and lets you assess service QoS/QoE – for deploying, maintaining and validating the interoperability of 10-gigabit networks.


Most popular FTTH testers (PON power meters, OTDR reflectometers, fiber identifiers) work at the optical layer — measuring power and attenuation and locating fiber faults. The GPON Doctor works one layer higher — at the protocol layer: it decodes and interprets the PLOAM, OMCI, GEM/XGEM control frames and bandwidth allocation (DBA). It is a different class of tool, answering the question “why the service is not working”, not just “whether there is a signal”.
It is precisely this capability — the analysis and decryption of control and user traffic — that sets the GPON Doctor apart from the offerings of VIAVI, EXFO or VeEX (PON power meters / OTDRs). The passive, chipset-independent acquisition hardware delivers a neutral result, independent of the implementation of any OLT or ONT manufacturer — which is why it is the reference tool in interoperability tests and compliance certification.

| Technology | XGS-PON (symmetrical 10G), ITU-T G.987.2 / G.989.3 / G.988 compliance |
|---|---|
| Analyzer type | passive, bit-level, standalone |
| Capture directions | downstream + upstream simultaneously |
| Control layers | OAM, PLOAM, OMCI, XGTC/GTC, DBA |
| Analysis | topology inference, ONT/OLT state machines, OMCI E/R diagrams, per-ONT/T-CONT bandwidth allocation |
| Services / QoS | service regeneration, multicast video extraction and reassembly, QoS/QoE assessment |
| Assessment rules | detection of deviations from ITU-T G.987.2 / G.989.3 / G.988 / G.984.x |
| Integration | works with the xGenius traffic generator (certification of IP/IPTV/VoD/VoIP services) |
| Construction | portable, battery-powered, ruggedized housing |

What is XGS-PON and how does it differ from GPON?
XGS-PON is a symmetrical 10-gigabit PON standard (ITU-T G.9807.1), offering about 10 Gb/s in both directions, whereas classic GPON (G.984.x) delivers 2.5 Gb/s down / 1.25 Gb/s up. XGS-PON is the successor to GPON and coexists with it on the same fiber. The GPON Doctor 9k7 analyzes the XGS-PON protocol; for both technologies at once, use the 10k7 model.
Why is a protocol analyzer needed when migrating to XGS-PON?
Migrating and mixing ONT/OLT vendors generates interoperability problems at the protocol layer (different OMCI interpretations, negotiation errors). The 9k7 lets you see the actual exchange of PLOAM/OMCI frames in a live network and unambiguously pinpoint the device and the cause of the deviation from the standard.
Does the 9k7 assess service quality (IPTV, VoIP)?
Yes. The device can extract and reassemble multicast video streams in real time, and combined with the xGenius traffic generator it enables certification of IP service transmission (IPTV, VoD, VoIP) and QoS/QoE assessment.
Interlab Sp. z o.o. is an authorized distributor of Albedo Telecom in Poland. We provide technical consulting, configuration selection, presentations and deployment support. Contact us to request a quote or arrange a demonstration of the GPON Doctor.
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Product: ALBEDO GPON Doctor 9k7 – XGS-PON Protocol Analyzer (10G)