UNE-EN 61076-4-105
Connectors with assessed quality, for use in d.c., low frequency analogue and in digital high-speed data applications - Part 4: Printed board connectors - Section 105: Detail specification for 9 mm circular connector with 3 to 8 contacts for use in a wide range of applications including the telecommunication and audio industry. (Endorsed by AENOR in November of 2001.)