Centronics Parallel Host Interface
The Centronics Parallel host interface uses the signal definitions defined below.
Table
Pin | Signal | Function | |
Name | |||
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1 | DS | Data strobe (active low) | |
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2 | DB0 | Data bit 0 | |
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3 | DB1 | Data bit 1 | |
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4 | DB2 | Data bit 2 | |
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5 | DB3 | Data bit 3 | |
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6 | DB4 | Data bit 4 | |
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7 | DB5 | Data bit 5 | |
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8 | DB6 | Data bit 6 | |
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9 | DB7 | Data bit 7 | |
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10 | ACK | Acknowledge (active low) | |
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11 | BSY | Busy (active high) | |
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12 | PE | Paper empty (active high) | |
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13 | SEL | Select (active high) | |
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14 | AF | Auto feed | |
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15 |
| Not used | |
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16 | SG | Signal ground | |
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17 | FG | Frame or chassis ground | |
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18 | PLH | Peripheral logic high | |
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19 to 30 |
| Signal ground | |
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31 | IP | INIT | |
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32 | ERR | Error (active low) | |
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33 to 35 |
| Not used | |
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36 | SI | Select input | |
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Wiring Diagrams and Electrical Data |