ATA 50 to 40 pin (notebook CD-ROM)

pinout

This adapter will enable you to connect a 50 pin CD-ROM data cable to 40 pin ATA bus.

40 pin IDC female connector

ATA (40) Pin CD-ROM (50) Pin Name Description   1 Audio Left audio left   2 Audio Right audio right   3 Audio ground audio ground 2 4 GND Ground 1 5 /RESET Reset 4 6 DD8 Data 8 3 7 DD7 Data 7 6 8 DD9 Data 9 5 9 DD6 Data 6 8 10 DD10 Data 10 7 11 DD5 Data 5 10 12 DD11 Data 11 9 13 DD4 Data 4 12 14 DD12 Data 12 11 15 DD3 Data 3 14 16 DD13 Data 13 13 17 DD2 Data 2 16 18 DD14 Data 14 15 19 DD1 Data 1 18 20 DD15 Data 15 17 21 DD0 Data 0 21 22 DMARQ DMA Request 19 23 GND Ground 25 24 /DIOR Read Strobe 23 25 /DIOW Write Strobe 22 26 GND Ground 27 27 IORDY I/O Ready 29 28 /DMACK DMA Acknowledge 31 29 INTRQ Interrupt Request 32 30 /IOCS16 IO ChipSelect 16 33 31 DA1 Address 1 34 32 PDIAG Passed Diagnostics 35 33 DA0 Address 0 36 34 DA2 Address 2 37 35 /IDE_CS0 (1F0-1F7) 38 36 /IDE_CS1 (3F6-3F7) 39 37 /ACTIVE - /DASI - DASP Led driver +5V 38 +5V + 5 volts power +5V 39 +5V + 5 volts power +5V 40 +5V + 5 volts power +5V 41 +5V + 5 volts power +5V 42 +5V + 5 volts power 24 43 GND Ground 26 44 GND Ground 30 45 GND Ground 40 46 GND Ground 28 47 Device Cfg Spindle Sync or Cable Select GROUND 48 GND Ground   49 reserved Vendor Unique   50 reserved Vendor Unique

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