PHOENIX, Ariz. November 28, 2018 — ASSA ABLOY Electronic Security Hardware and ASSA ABLOY Group brand Adams Rite today announced the release of the HES ® 9800 and Adams Rite ® 7800 Electric Strike.

So what is this electric interlocking system that may have been responsible for one of the biggest train tragedies since the 1990s? Interlocking is a system meant to ensure that conflicting signals ...

The Railway Minister has said that the cause behind the Odisha rail tragedy seems to be a change in the electric interlocking system that ensures smooth railway movement. But what is the electric ...

Electric interlocking handbook by the Engineering staff of the General railway signal company, with an introduction by Wilmer W. Salmon. Henry M. Sperry, editor; Paul E. Carter, assistant editor; ...