Diskette Drive Cable Connector Signals
| Pin | Signal Name | I/O | Pin | Signal Name | I/O | 
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| 1 | No Connection | N/A | 18 | Direction SELECT | O | 
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| 2 | Density Select | O | 19 | Ground | N/A | 
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| 3 | No Connection | N/A | 20 | Step | O | 
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| 4 | High Density Out | I | 21 | Ground | N/A | 
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| 5 | Ground | N/A | 22 | Write Data | O | 
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| 6 | No Connection | N/A | 23 | Ground | N/A | 
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| 7 | Ground | N/A | 24 | Write GATE | O | 
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| 8 | Index | I | 25 | Ground | N/A | 
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| 9 | Ground | N/A | 26 | Track 0 | I | 
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| 10 | No Connection | N/A | 27 | Ground | N/A | 
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| 11 | Ground | N/A | 28 | Write Protect | I | 
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| 12 | Drive Select 1 | O | 29 | Ground | N/A | 
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| 13 | Ground | N/A | 30 | Read Data | I | 
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| 14 | No Connection | N/A | 31 | Ground | N/A | 
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| 15 | Ground | N/A | 32 | SIDE 1 SELECT | O | 
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| 16 | Motor On | O | 33 | Ground | N/A | 
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| 17 | Ground | N/A | 34 | Diskette Change | I | 
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