![](/images/new-backgrounds/1146423/14642349x1.webp)
4.0ATA interface
These drives use the
For detailed information about the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension
4.1ATA interface signals and connector pins
The following table summarizes the signals on the
Table 5: | Connector signals |
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| Connector | Cable |
Signal Name | Contact | Conductor | |
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RESET- |
| 1 | 1 |
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DD7 |
| 3 | 3 |
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DD6 |
| 5 | 5 |
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DD5 |
| 7 | 7 |
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DD4 |
| 9 | 9 |
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DD3 |
| 11 | 11 |
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DD2 |
| 13 | 13 |
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DD1 |
| 15 | 15 |
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DD0 |
| 17 | 17 |
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Ground |
| 19 | 19 |
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DMARQ |
| 21 | 21 |
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DIOW- |
| 23 | 23 |
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DIOR- |
| 25 | 25 |
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IORDY |
| 27 | 27 |
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DMACK- |
| 29 | 29 |
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INTRQ |
| 31 | 31 |
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DA1 |
| 33 | 33 |
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DA0 |
| 35 | 35 |
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CS1FX- |
| 37 | 37 |
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DASP- |
| 39 | 39 |
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+5 V (Logic) |
| 41 | 41 |
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Ground (Return) | 43 | 43 | |
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Cable | Connector |
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Conductor | Contact | Signal Name |
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2 | 2 | Ground |
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4 | 4 | DD8 |
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6 | 6 | DD9 |
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8 | 8 | DD10 |
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10 | 10 | DD11 |
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12 | 12 | DD12 |
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14 | 14 | DD13 |
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16 | 16 | DD14 |
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18 | 18 | DD15 |
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20 | 20 | (keypin) |
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22 | 22 | Ground |
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24 | 24 | Ground |
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26 | 26 | Ground |
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28 | 28 | PSYNC:CSEL |
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30 | 30 | Ground |
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32 | 32 | IOCS16- |
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34 | 34 | PDIAG- |
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36 | 36 | DA2 |
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38 | 38 | CS3FX- |
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40 | 40 | Ground |
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42 | 42 | +5V (Motor) |
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44 | 44 | No connection |
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Momentus 5400.2 Blade Server Product Manual, Rev. B | 19 |