DIP switches were used extensively in ISA architecture of PC expansion cards to select IRQs and memory addresses.

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KE DIP switch at all during the operation, make sure the switch in the "off" position.

An 8-bit DIP switch, from left to right from 1 to 8, the maximum can go to 128, when no DIP switch status of all rely on, that ON / DP side, when the DIP switch is close to Digital to set aside the state, followed by the detailed description of the correspondence between decimal numbers and actual numbers when switching on the side.