Connectors for frequencies below 3 MHz for use with printed boards - Part 11: Detail specification for concentric connectors (dimensions for free connectors and fixed connectors)
This part of IEC 603 covers concentric connectors for use in LF (low frequency) audio applications such as the interconnection of headphones and microphones in sound system components. The object of this part is to specify the dimensions, general requirements and tests for the concentric connectors for interconnection of headphones and microphones in sound system components.