IEC-61811-1 Complete Document History
Electromechanical telecom elementary relays of assessed quality - Part 1: Generic specification and blank detail specification

Complete Current Edition:
   EDITION 2.0 - specification and blank detail specification - Jan. 28, 2015

Obsolete Revision Information:
   1ST EDITION - PART 1: GENERIC SPECIFICATION, - March 1, 1999