I've seen this a couple of times locally - there can be two PCPs next door to one another, with two associated fibre cabs.
The ECI was probably done as part of the commercial rollout, the Huawei was BDUK infill.
I spotted two in Sheringham yesterday (cabs 2 and 9 are next to each other), and their evil twins also stand next to each other just in front of them. Alas Streetview doesn't have the fibre cabs showing, and I didn't take a picture...
rob | PlusNet