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SEAGATE ST31250DC/WC, ST32550DC/WC
| Interface: | SCSI-2 Fast |
| Size: | 3.5 in. third height |
| View: | Bottom |
| DRIVE SELECTION - J4 | ||||
|---|---|---|---|---|
| SCSI ID Number | Jumper 1 | Jumper 2 | Jumper 3 | Jumper 4 |
 0 |
open | open | open | open |
| 1 | closed | open | open | open |
| 2 | open | closed | open | open |
| 3 | closed | closed | open | open |
| 4 | open | open | closed | open |
| 5 | closed | open | closed | open |
| 6 | open | closed | closed | open |
| 7 | closed | closed | closed | open |
| 8 | open | open | open | closed |
| 9 | closed | open | open | closed |
| 10 | open | closed | open | closed |
| 11 | closed | closed | open | closed |
| 12 | open | open | closed | closed |
| 13 | closed | open | closed | closed |
| 14 | open | closed | closed | closed |
| 15 | closed | closed | closed | closed |
| USER CONFIGURABLE SETTINGS | ||
|---|---|---|
| Function | Location | Setting |
| Factory configured - do not alter |
J2/jumper 1 | N/A |
| Factory configured - do not alter |
J2/jumper 2 | N/A |
| SCSI parity check enabled |
J2/jumper 3 | open |
| SCSI parity check disabled | J2/jumper 3 | closed |
| Write protect disabled |
J2/jumper 4 | open |
| Write protect enabled | J2/jumper 4 | closed |
| Spindle motor starts on power-up |
J2/jumper 5 | open |
| Spindle motor starts on command only | J2/jumper 5 | closed |
| Spindle motor delay disabled |
J2/jumper 6 | open |
| Spindle motor delay enabled (10 sec. X SCSI ID) | J2/jumper 6 | closed |
| Factory configured - do not alter |
J2/jumper 7 | N/A |
| Factory configured - do not alter |
J2/jumper 9 | N/A |
| Factory configured - do not alter |
J2/jumper 8 | N/A |
| Factory configured-do not alter |
J4/jumper 5 | N/A |
| Factory configured - do not alter |
J4/jumper 6 | N/A |
| Factory configured - do not alter |
J4/jumper 7 | N/A |
| Factory configured - do not alter |
J4/jumper 8 | N/A |
| Factory configured - do not alter |
J4/jumper 9 | N/A |
| Factory configured - do not alter |
J4/jumper 10 | N/A |
| CONNECTIONS | |
|---|---|
| Function | Location |
| Remote LED connection | J4/pins 8 & 11 |
SEAGATE BARRACUDA 2LP (VER. 4), ST31250WD, ST32550WD
| Interface: | SCSI-2 Fast |
| Size: | 3.5 in. third height |
| View: | Bottom |
| DRIVE SELECTION-J5 | ||||
|---|---|---|---|---|
| Drive Number | Jumper 1 | Jumper 2 | Jumper 3 | Jumper 4 |
| 0 |
open | open | open | open |
| 1 | closed | open | open | open |
| 2 | open | closed | open | open |
| 3 | closed | closed | open | open |
| 4 | open | open | closed | open |
| 5 | closed | open | closed | open |
| 6 | open | closed | closed | open |
| 7 | closed | closed | closed | open |
| 8 | open | open | open | closed |
| 9 | closed | open | open | closed |
| 10 | open | closed | open | closed |
| 11 | closed | closed | open | closed |
| 12 | open | open | closed | closed |
| 13 | closed | open | closed | closed |
| 14 | open | closed | closed | closed |
| 15 | closed | closed | closed | closed |
| USER CONFIGURABLE SETTINGS | ||
|---|---|---|
| Function | Location | Setting |
| TERMPWR supplied to SCSI bus |
J1 | pins 1 & 3 closed |
| Factory configured - do not alter |
J2/jumper 1 | N/A |
| Factory configured - do not alter |
J2/jumper 2 | N/A |
| SCSI parity check enabled |
J2/jumper 3 | open |
| SCSI parity check disabled | J2/jumper 3 | closed |
| Write protect disabled |
J2/jumper 4 | open |
| Write protect enabled | J2/jumper 4 | closed |
| Spindle motor starts on power-up |
J2/jumper 5 | open |
| Spindle motor starts on command only | J2/jumper 5 | closed |
| Spindle motor delay disabled |
J2/jumper 6 | open |
| Spindle motor delay enabled (10 sec. X SCSI ID) | J2/jumper 6 | closed |
| Factory configured - do not alter |
J2/jumper 7 | N/A |
| Factory configured - do not alter |
J2/jumper 8 | N/A |
| Factory configured - do not alter |
J2/jumper 9 | N/A |
| Factory configured - do not alter |
J4/jumper 7 | N/A |
| Factory configured - do not alter |
J4/jumper 8 | N/A |
| Factory configured - do not alter |
J4/jumper 9 | N/A |
| Factory configured - do not
alter |
J4/jumper 10 | N/A |
| Note: Factory configured jumpers are reserved for future use. | ||
| J4 PIN-OUT | |
|---|---|
| Pin Number | Significance |
| 1 | SCSI ID=0 |
| 2 | Fault LED (+) |
| 3 | SCSI ID=1 |
| 4 | Proprietary |
| 5 | SCSI ID=2 |
| 6 | SSREF (+) |
| 7 | SCSI ID=3 |
| 8 | Drive active LED (+) |
| 9 | Termination enable |
| 10 | GRD |
| 11 | +5v |
| 12 | Unused |
| Note: See the USER CONFIGURABLE SETTINGS table for the significance of the remaining J4 jumpers. | |
| CONNECTIONS | |
|---|---|
| Function | Location |
| Spindle sych. connector | J5/jumper 6 |
| Drive active LED | J5/jumper 2 |
SEAGATE MEDALIST 1080 (VER. 1), ST3780A, ST31220A
| Interface: | IDE (AT) |
| Size: | 3.5 in. third height |
| View: | Bottom |
| DRIVE CONFIGURATION J5 | ||
|---|---|---|
| Selection | Jumper 1 | Jumper 2 |
| Single drive system |
open | open |
| Drive is slave in a two drive system | closed | open |
| Drive is master in a two drive system | open | closed |
| Cable select * | closed | closed |
| Note: The * indicates you must also install a jumper on pins 6 & 8 of J8. | ||
| USER CONFIGURABLE SETTINGS | ||
|---|---|---|
| Function | Location | Setting |
| Dual drive emulation mode enabled | J6/jumper 1 & 2 | closed |
| Dual drive emulation mode disabled | J6/jumper 1 & 2 | open |
| Cable select enabled | J8/pins 6 & 8 | closed |
| CONNECTIONS | |
|---|---|
| Function | Location |
| Remote LED connection | J8/jumper 7 |
| MISCELLANEOUS TECHNICAL NOTES |
|---|
| a) Shunts installed on J5/pins 1 & 3, J8/pins
1 & 2, and J6/pins 1 & 3 are spares. b) When the drive is configured to support dual-drive emulation, both emulated drives respond as one to any power-management command. c) If both the master and the slave are of the ST31220 family drives, you need not install a jumper on J5/jumper 2. This is because the master can detect the presence of a slave with DASP. |
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