Tabela 1.: Opis sygnaîów na zîâczu dysku AT-Bus 2,5" nazwa numer pinu opis _RESET 1 Drive reset GROUND 2 masa DD7 3 Drive data bus bit 7 DD8 4 Drive data bus bit 8 DD6 5 Drive data bus bit 6 DD9 6 Drive data bus bit 9 DD5 7 Drive data bus bit 5 DD10 8 Drive data bus bit 10 DD4 9 Drive data bus bit 4 DD11 10 Drive data bus bit 11 DD3 11 Drive data bus bit 3 DD12 12 Drive data bus bit 12 DD2 13 Drive data bus bit 2 DD13 14 Drive data bus bit 13 DD1 15 Drive data bus bit 1 DD14 16 Drive data bus bit 14 DD0 17 Drive data bus bit 0 DD15 18 Drive data bus bit 15 GROUND 19 masa key 20 Key for interface connector DMARQ 21 DMA request (nie instalowany jeszcze) GROUND 22 masa _DIOW 23 Drive I/O write GROUND 24 masa _DIOR 25 Drive I/O read GROUND 26 masa IORDY 27 I/O channel ready SPSYNC 28 Spindle sync (nie instalowany jeszcze) _DMACK 29 DMA acknowledge (nie instalowany jeszcze) GROUND 30 masa INTRQ 31 Drive interrupt _IOCS1 32 Drive 16 bit I/O DA1 33 Drive address bus bit 1 _PDIAG 34 Passed diagnostics DA0 35 Drive address bus bit 0 DA2 36 Drive address bus bit 2 _CS1FX 37 Chip select 0 _CS3FX 38 Chip select 1 _DASP 39 Drive active/slave present GROUND 40 masa +5v 41 +5 V supply +5v 42 +5 V supply GROUND 43 masa RESERV 44 Reserved for future definition