PDF Standards IEC 61169-38 Ed. 1.0 en:2008
Radio-frequency connectors – Part 38: Sectional specification – Radio frequency coaxial connectors model, slide-in (rack and panel applications) – Characteristic impedance 50 ¿¿ (type TMA) – 50 ¿¿ applications
standard by International Electrotechnical Commission, 11/13/2008