This panel box was located on the north side of Portobello Junction and opened in 1973. There was considerable rationalisation for the opening, particularly at Portobello East Junction (which was renamed Portobello Junction with the closure of Portobello West Junction).
1973
Brunstane Park Junction
Portobello East Junction
1976
Niddrie West Junction
Replaced by the Edinburgh Signalling Centre in 1977.