Jul 3, 2013 #1 P pcwortex Junior Member level 3 Joined Jun 23, 2009 Messages 27 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location Vilnius Activity points 1,428 What does means this symbol on the Siemens modules? This symbol I am attaching in bmp file Attachments symbol.bmp 6.7 KB · Views: 58