EMULEX CORPORATION
MD21
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Data bus: None (SCSI to ESDI interface)
Size: Drive card
Hard drives supported: SCSI to two RLL ESDI drives
Floppy drives supported: None
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CABLE CONNECTIONS | |
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34-pin control cable connector-hard drive |
J1 |
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20-pin data cable connector-drive 0 |
J2 |
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20-pin data cable connector-drive 1 |
J3 |
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10-pin connector-user panel (factory use only) |
J4 |
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14-pin connector-test (factory use only) |
J5 |
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50-pin SCSI connector- to host adapter |
J6 |
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4-pin connector-DC power |
J7 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
| » |
Factory configured - do not alter |
SW1/switch 4 |
off |
| » |
Sector size set to 512 bytes |
SW1/switch 5 |
off |
|
Sector size set to 256 bytes |
SW1/switch 5 |
on | |
| » |
Spindle motor starts on power-up |
SW1/switch 6 |
off |
|
Spindle motor starts on command |
SW1/switch 6 |
on | |
| » |
Soft error reporting enabled |
SW1/switch 7 |
off |
|
Soft error reporting disabled |
SW1/switch 7 |
on | |
| » |
SCSI parity check disabled |
SW1/switch 8 |
off |
|
SCSI parity check enabled |
SW1/switch 8 |
on | |
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SCSI ADDRESS | ||||
|
Address |
SW1/switch 1 |
SW1/switch 2 |
SW1/switch 3 | |
|
0 |
off |
off |
off | |
|
1 |
on |
off |
off | |
|
2 |
off |
on |
off | |
|
3 |
on |
on |
off | |
|
4 |
off |
off |
on | |
|
5 |
on |
off |
on | |
|
6 |
off |
on |
on | |
| » |
7 |
on |
on |
on |
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MISCELLANEOUS TECHNICAL NOTES |
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For the SCSI termination power option, a # 1N5817 diode must be installed at socket CR2 and JP1 must be closed. |
