Input/Output Interfaces
These systems use a standard
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Figure
Table
Pin | Signal | Description | Pin | Signal | Description |
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1 | GND | Ground | 18 | DIR- | Drive head direction control |
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2 | LOW DEN- | Low density select | 19 | GND | Ground |
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3 | (KEY) | 20 | STEP- | Drive head track step cntrl. | |
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4 | MEDIA ID- | Media identification | 21 | GND | Ground |
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5 | GND | Ground | 22 | WR DATA- | Write data |
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6 | DRV 4 SEL- | Drive 4 select | 23 | GND | Ground |
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7 | GND | Ground | 24 | WR ENABLE- | Enable for WR DATA- |
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8 | INDEX- | Media index is detected | 25 | GND | Ground |
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9 | GND | Ground | 26 | TRK 00- | Heads at track 00 indicator |
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10 | MTR 1 ON- | Activates drive motor | 27 | GND | Ground |
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11 | GND | Ground | 28 | WR PRTK- | Media write protect status |
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12 | DRV 2 SEL- | Drive 2 select | 29 | GND | Ground |
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13 | GND | Ground | 30 | RD DATA- | Data and clock read off disk |
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14 | DRV 1 SEL- | Drive 1 select | 31 | GND | Ground |
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15 | GND | Ground | 32 | SIDE SEL- | Head select (side 0 or 1) |
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16 | MTR 2 ON- | Activates drive motor | 33 | GND | Ground |
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17 | GND | Ground | 34 | DSK CHG- | Drive door opened indicator |
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| Technical Reference Guide | www.hp.com |