* oSwitch-mode power supplies * oLine receiver * oComputer peripheral interface * oMicroprocessor system interface * oReinforced isolation provides circuit protection against electrical shock (safety class II) * oCircuits for safe protective separation against electrical shock according to safety class II (reinforced isolation): - for appl. class I to IV at mains voltage ≤ 300 V - for appl. class I to III at mains voltage ≤ 600 V according to DIN EN 60747-5-2 (VDE 0884) * o