SCIENTIFIC MICRO SYSTEMS, INC.
OMTI 5200 (REV. E), 5204 (REV. B), 5300 (REV. D),
5400 (REV. C)
Data bus: | 50-pin SCSI interface |
Size: | 5.75" x 8" |
Hard drive supported: | Up to three ST506/412 MFM drives (5300), up to four ST506/412 MFM drives (5200, 5204, 5400) |
Floppy drives supported: | Two 360KB, 720KB (all except 5300) 1.2MB, 1.44MB (5200, 5400) |
CONNECTIONS | |
Function | Location |
50-pin SCSI interface | J1 |
34-pin MFM disk control connector | J2 |
20-pin data cable connector | J3 |
20-pin data cable connector | J4 |
34-pin floppy drive connector (not in 5300) | J7 |
50-pin tape drive connector (5300, 5400) | J8 |
DC power connector | J10 |
SCSI ADDRESS | |||||||||
SCSI ID | W0/0 | W0/1 | W0/2 | W0/3 | W0/4 | W0/5 | W0/6 | W0/7 | |
» | 0 | closed | open | open | open | open | open | open | open |
» | 1 | open | closed | open | open | open | open | open | open |
» | 2 | open | open | closed | open | open | open | open | open |
» | 3 | open | open | open | closed | open | open | open | open |
» | 4 | open | open | open | open | closed | open | open | open |
» | 5 | open | open | open | open | open | closed | open | open |
» | 6 | open | open | open | open | open | open | closed | open |
» | 7 | open | open | open | open | open | open | open | closed |
USER CONFIGURABLE SETTINGS | |||
Function | Location | Setting | |
» | SCSI parity enabled | W1/pins 1 & 2 | closed |
» | SCSI parity disabled | W1/pins 2 & 3 | closed |
» | QIC--02 (Tape drive) parity enabled (5300 & 5400) | W2/pins 1 & 2 | closed |
» | QIC--02 (Tape drive) parity disabled (5300 & 5400) | W2/pins 2 & 3 | closed |
» | LUN 0 supports ST506/412 MFM disk type | W5 | open |
» | LUN 0 supports flexible disk (5400, 5200, 5204) | W5 | closed |
» | LUN 0 is reserved (5300) | W5 | closed |
» | LUN 1 supports ST506/412 MFM disk type | W6 | open |
» | LUN 1 supports flexible disk (5400, 5200, 5204) | W6 | closed |
» | LUN 1 is reserved (5300) | W6 | closed |
» | LUN 2 supports ST506/412 MFM disk type | W7 | open |
» | LUN 2 supports flexible disk (5400, 5200, 5204) | W7 | closed |
» | LUN 2 is reserved (5300) | W7 | closed |
» | LUN 3 supports ST506/412 MFM disk type (5200, 5204) | W8 | open |
» | LUN 3 supports tape drive (5400, 5300) | W8 | open |
» | LUN 3 supports flexible disk (5400, 5200, 5204) | W8 | closed |
» | LUN 3 supports ST506/412 MFM disk type (5300) | W8 | closed |
» | Motor on signal always enabled (5200, 5204, 5400) | W14 | closed |
» | Motor on signal enabled by command | W14 | open |
» | Ready override signal for flexible disk enabled (for drives not supporting Ready signal) | W15 | closed |
» | Ready override signal for flexible disk disabled (for drives í supporting Ready signal) | W15 | open |
» | Factory configured - do not alter | W17 | N/A |
» | Factory configured - do not alter | W18 | N/A |
SECTOR CONFIGURATION | ||||
Bytes/Sector | Sector/Track | W3 | W4 | |
» | 256 | 32 | closed | open |
» | 512 | 17 | open | closed |
512 | 18 | open | open | |
» | 1024 | 9 | closed | closed |
MISCELLANEOUS TECHNICAL NOTES |
When installing ST506/412 fixed/removable, 2 LUNs are used which limits the number of the remaining LUNs and therefore the number of drives that can be supported. |