IEC 62343-5-1:2014(E) contains the measurement method of gain tilt settling time for a dynamic gain tilt equalizer (DGTE) to change its gain tilt from an arbitrary initial value to a desired target value. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: change in the title and changes in performance parameter names. Keywords: dynamic gain tilt equalizer (DGTE)