
HPIIISi TWINAX CARD
Table C-1 (continued). Parallel-Interface Specifications.
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| Parallel |
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Signal | Return |
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Pin | Pin | Signal | Pin | Direction | Description |
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14 | — | AUTO | 14 | IN | This signal is NOT |
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| FEED |
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| supported. Defined by |
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| many printers to add |
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| a LF to each CR. The |
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| IBM 5250 protocol |
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| does not support this |
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| signal. |
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15 | — | NC | — | — | Not used. |
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16 | — | GND | 19 | — | Logic Ground. |
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17 | — | CGND | — | — | Chassis Ground. |
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18 | — | NC | — | — | Not used. |
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— | GND | — | |||
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| returns listed above. |
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31 | — | INIT | 16 | IN | Defined to reset and |
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| clear the printer when |
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| LOW; the reset and |
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| clear are NOT sup- |
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| ported by the Card. |
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| The IBM host can’t be |
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| interrupted by this |
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| signal. An ACKNLG |
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| is generated for |
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| handshaking. |
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32 | — | ERROR | 15 | OUT | This signal goes LOW |
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| when the printer is in |
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| an error state. |
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33 | — | GND | 25 | — | Logic Ground. |
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34 | — | NC | — | — | Not used. |
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35 | — | HIGH | — | — | Not used. |
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36 | — | SLCTIN | 17 | — | Not supported. |
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