CISPR 35:2016 BS EN 55035:2017 Figure 1 — Examples of ports 3.1.28 primary function any function of an MME considered essential for the user or for the majority of users Note 1 to entry: An MME may have more than one primary function. For example the primary functions of a basic television set include broadcast reception, audio reproduction and display.
3.1.29 primary protection means by which the majority of surge stress is prevented from propagating beyond a designated location (preferably the building entrance point) 3.1.30 primary protector surge protection device used for the primary protection of analogue/digital ports that may connect to cables that leave the building structure Note 1 to entry: Aligned with ITU-T, K series recommendations.
3.1.31 RF modulator output port port intended to be connected to a broadcast receiver tuner port ( 3.1.8 ) in order to transmit a signal to the broadcast receiver 3.1.32 signal/control port port intended for the interconnection of components of an EUT, or between an EUT and AE and used in accordance with relevant functional specifications (for example for the maximum length of cable connected to it) Note 1 to entry: Examples include RS-232, Universal Serial Bus (USB), High-Definition Multimedia Interface (HDMI), IEEE Standard 1394 (“FireWire”). 6