I'm working on a project, as one does. I'm having an excruciating time trying to get a straight answer out of which variety of OLT serves a couple of postcodes.
WF2 8ZA and 8ZB.
I suspect they have mixed technology PONs with some ECI and some Huawei. Openreach assure that it's all Huawei - they are wrong - BT Wholesale if there's Huawei kit there have no 10G Cablelinks to any of it.
A property on the postcodes most definitely had an ECI ONT. These don't cross technology. However a more newly built one has Huawei ONT so either there are multiple PONs with different technologies or they've taken the hit on telemetry and provisioned Huawei ONTs onto ECI OLTs as a temporary measure.
There are maps showing cabinet mappings to OLTs. Must be something regarding PONs to OLTs somewhere?
Building better networks, not just faster ones.