IEC 60603-5 Ed. 1.0 b:1987

Covers a range of connectors with 2.54 mm (0.1 in) spacing intended to connect a double-sided printed board to another printed board or wires. Two kinds of connector are available: -One-part edge-socket connector: Fixed connector or (female) receptacle is intended to mate with edge-board contacts. -Two-part connector: Fixed connector or (female) receptacle is intended to mate with free connector of board-mounted (male) connector. For these two cases, fixed connectors or (female) receptacles are the same.