Signal pin assignments
In this table, the direction of the signals is given relative to the scanner.
Signal | I/O | 50 Pin | 25 Pin | Description |
|
| No. | No. |
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GND |
| 1−12 | 7−9 | Ground |
|
| 14−25 | 14 |
|
|
| 35−37 | 16 |
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| 39−40 | 18 |
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| 42 | 24 |
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NC |
| 13 |
| Not connected |
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DB0 | I/O | 26 | 8 | Data bus 0 |
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DB1 | I/O | 27 | 21 | Data bus 1 |
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DB2 | I/O | 28 | 22 | Data bus 2 |
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DB3 | I/O | 29 | 10 | Data bus 3 |
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DB4 | I/O | 30 | 23 | Data bus 4 |
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DB5 | I/O | 31 | 11 | Data bus 5 |
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DB6 | I/O | 32 | 12 | Data bus 6 |
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DB7 | I/O | 33 | 13 | Data bus 7 |
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DBP | I/O | 34 | 20 | Data bus parity |
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TERMPWR |
| 38 | 25 | Termination power (+5V) |
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ATN | I | 41 | 17 | Attention |
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BSY | I/O | 43 | 6 | Busy |
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ACK | I | 44 | 5 | Acknowledge |
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RST | I | 45 | 4 | Reset |
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MSG | O | 46 | 2 | Message |
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SEL | I/O | 47 | 19 | Select |
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C/D | O | 48 | 15 | Control/Data |
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REQ | O | 49 | 1 | Request |
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I/O | O | 50 | 3 | Input/Output |
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