For equipment having more than one circuit to be connected to a TELECOMMUNICATION NETWORK or a CABLE DISTRIBUTION SYSTEM, the test is applied to only one example of each type of circuit. For equipment that has no main protective earthing terminal, the earthing conductor switch "e", if connected to aFUNCTIONAL EARTHING terminal on the EUT, is left open. Otherwise it is closed. Terminal B of the measuring instrument is connected to the earthed (neutral) conductor of the supply. Terminal A is connected via the measurement switch "s" and the polarity switch "p2" to the TELECOMMUNICATION NETWORK or CABLE DISTRIBUTION SYSTEM connection port. For single-phase equipment, the test is made in all combinations of the polarity switches "p1" and "p2". For three-phase equipment, the test is made in both positions of polarity switch "p2". After applying each test condition, the equipment is restored to its original operating state. Test measurements are made using one of the measuring instruments of Annex D as described in 5.1.6. None of the values measured in accordance with 5.1.8.1 shall exceed 0,25 mA r.m.s.