DS EN 4604-006:2009 Aerospace Series - Cable, Electrical, For Signal Transmission - Part 006: Cable, Coaxial, 50 Ohm, 200 Degrees C, Type Wm - Product Standard Describes the required characteristics of a coaxial cable, 50 Omega, type WM, for use in aircraft electrical systems at operating temperature between -55 degrees C and 200 degrees C and specially for