CEP 1620 was modified to try out centralised door locking. The pictures below show it at Blackfriars Station on the 3rd November 1994. The modification was carried out by B.R.M.L. at Eastleigh.

( Note: If I can find a web page with the history of this modification I will add it here)

Picture showing the driving cab. Note how clean it is and how the windows shine.

Picture showing a description on the side of the driving cab.

A "door locked" indicator using a standard industrial indicator lamp fitting. Note rust bubble to the side. 1620 had quite a few of these. Overall the paintwork was rather poor. In later years these defects became invisible under a thick layer of grime.

This is one of the control panels for the door locking as viewed through the cab window.

Just to remind us where 1620 usually ventured.