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Connector pinout: Apple Disk Drive Port


Apple Disk Drive Port

pinnamedirectiondescriptioncolor
1GNDGround
2GNDGround
3GNDGround
43.5DISK3.5 or 5.25-inch drive select.
5-12V-12 volt supply.
6+5V+5 volt supply.
7+12V+12 volt supply.
8+12V+12 volt supply.
9DR2Drive 2 Select.
10WRPTOTECTWrite protect input.
11PHASE0Motor Phase 0 output.
12PHASE1Motor Phase 1 output.
13PHASE2Motor Phase 2 output.
14PHASE3Motor Phase 3 output.
15WREQWrite request.
16HDSELHead Select.
17DR1Drive 1 select.
18RDDATARead data input.
19WDATAWrite data output.