Assuming that it is the related FTTC Cabinet, normally there is likely to be signs of trenching from it to the (old) PCP Cabinet, to accommodate the essential Link Cabling; and also possibly other trenching for the essential Mains Supply, probably from the street lighting circuit.
The LH side of the FTTC has the DSLAMs and the Power Supply plus Battery Back-up.
The RH side has the Filter-Links to make the connections from the DSLAMS to the PCP Link Cables.
As said, it looks like a Huawei 288, so (eventually) it can accommodate up to 288 Upgrades to FTTC.
There is a Back-Plane at the back of the RH side, to take (eventually) 288 F-Ls; organised in small groups of 25, 5 rows by 5 columns.
Those small groups are organised in to two columns of groups, 6 rows deep.
In each small group, the 25th position, bottom row - RH end, is not used, giving -
2 big columns x 6 small group rows x 24 F-Ls = 288.
With my local FTTC, only the first two LH small groups had the actual F-Ls fitted, March 2014, ie potential for only 48 Upgrades initially.
About 15 months later, a second batch of 48 F-Ls were added below the existing ones, taking up to 96 F-Ls fitted, of which at August 2016, only 64 Upgrades had actually been ordered and installed.
Those progressive, stepped batch additions, explain why there can be confusion as to when exactly an individual Upgrade is carried out.
There have been more actual ordered Upgrades since then; but I suspect only up to around 80, by the infrequent visits to the PCP.
Normally, only the PCP has to be accessed for an Upgrade, intercepting the existing wiring, splitting it and connecting those split ends to the required Link wiring. I watched my own Upgrade being done in June 2014.
The F-Ls are white, about a one-inch cube; and are plugged in rather like old thermionic valves. I was talking with the technician adding the second 48 as he did it, taking about 5 minutes.
He had another 20 or so FTTC cabinets to do similar additions, scattered over a wide area, probably covering about 40 miles in the process.
The associated PCP has apparently 287 phone lines.
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The FTTCs are remotely monitored and last Autumn, a technician had opened up the LH side of the FTTC, to check the Back-up Battery module, expecting to have to replace a segment, resulting from a remote check.



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