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| 34 Pin Connector (to system cable ) Pin No. |
Signal Name | 40 Pin Connector (to backup unit) Pin No. |
|---|---|---|
| 1 | 2nd Drive installed | 1 |
| 2 | -High Density Select | 2 |
| 3 | + 5 Vdc | 38 |
| 4 | Ground | 4 |
| 5 | Ground | 5 |
| 6 | + 12 Vdc | 40 |
| 7 | Signal Ground | 7 |
| 8 | -Index | 8 |
| 9 | (No Connection) | 9 |
| 10 | -Motor Enable 0 | 10 |
| 11 | Signal Ground | 11 |
| 12 | -Drive Select 1 | 12 |
| 13 | Ground | 13 |
| 14 | -Drive Select 0 | 14 |
| 15 | Signal Ground | 15 |
| 16 | -Motor Enable 1 | 16 |
| 17 | (No Connection) | 17 |
| 18 | -Direction | 18 |
| 19 | Signal Ground | 19 |
| 20 | -Step | 20 |
| 21 | Signal Ground | 21 |
| 22 | -Write Data | 22 |
| 23 | Signal Ground | 23 |
| 24 | -Write Enable | 24 |
| 25 | Signal Ground | 25 |
| 26 | -Busy | 26 |
| 27 | (No Connection) | 27 |
| 28 | -Write Protect | 28 |
| 29 | Signal Ground | 29 |
| 30 | -Read Data | 30 |
| 31 | Signal Ground | 31 |
| 32 | -Head 1 Select | 32 |
| 33 | (No Connection) | 33 |
| 34 | -Ready | 34 |
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.