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It is a Very rural exchange though is ADSL2+, having been on the July 2015 ADSL2+ Exchange update list, see here
It is microwave fed.
A close up of Burgh on Bain's Microwave Link. it is an NEC Pasolink, which are high capacity, typically 1gbps symmetric.
The 'Fibre broadband' (FTTC) DSLAM Cabinet, with PCP cabinet behind
Belmont transmitter behind.