Electrical
connectors are classified into
three types based on their termination ends: board-to-board
connectors, cable/wire-to-cable/wire
connectors, and cable/wire-to-board
connectors. Six levels of interconnection are normally seen in electrical
connectors.
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What does 2-pole mean? 2-pole means that the device plug is not earthed and it normally has two pins that transmit electricity. Originally, all electrical devices were fitted with 2-pole plugs, which means that the devices were not earthed and that all mains sockets were constructed for 2-pole plugs.
