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Connections ■Block Diagrams H3DKZ-A1@/A2@ Time specification switches Time setting detection circuit AC (DC) input ROM RAM Clock Power supply circuit Output circuit One-chip microcomputer Indicator circuit Operation/power indicator ■ Terminal Arrangement H3DKZ-A1@ H3DKZ-A2@ A1 A1 15 15 25 R1 R1 R2 15 15 25 18 18 16 18 16 A2 16 28 28 26 18 16 26 A2 See note. See note. Note: The power supply terminals do not have polarity. (DIN notation) A1 A2 4 15 16 18 (DIN notation) A1 A2 15 25 16 18 26 28