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 | Up to three ST506/412 MFM drives (5300), | | supported: | up to four ST506/412 MFM drives (5200, | | | 5204, 5400) | |---------------+--------------------------------------------| | Floppy drives | Two 360KB, 720KB (all except 5300) 1.2MB, | | supported: | 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| W0/0 | W0/1 | W0/2 | W0/3 | W0/4 | W0/5 | W0/6 | W0/7 | | ID | | | | | | | | | |----+------+------+------+------+------+------+------+------| |>> |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 | closed | | | | & 2 | | |---+----------------------------------+-----------+---------| |>> | SCSI parity disabled | W1/pins 2 | closed | | | | & 3 | | |---+----------------------------------+-----------+---------| |>> | QIC--02 (Tape drive) parity | W2/pins 1 | closed | | | enabled (5300 & 5400) | & 2 | | |---+----------------------------------+-----------+---------| |>> | QIC--02 (Tape drive) parity | W2/pins 2 | closed | | | disabled (5300 & 5400) | & 3 | | |---+----------------------------------+-----------+---------| |>> | LUN 0 supports ST506/412 MFM | W5 | open | | | disk type | | | |---+----------------------------------+-----------+---------| |>> | LUN 0 supports flexible disk | W5 | closed | | | (5400, 5200, 5204) | | | |---+----------------------------------+-----------+---------| |>> | LUN 0 is reserved (5300) | W5 | closed | |---+----------------------------------+-----------+---------| |>> | LUN 1 supports ST506/412 MFM | W6 | open | | | disk type | | | |---+----------------------------------+-----------+---------| |>> | LUN 1 supports flexible disk | W6 | closed | | | (5400, 5200, 5204) | | | |---+----------------------------------+-----------+---------| |>> | LUN 1 is reserved (5300) | W6 | closed | |---+----------------------------------+-----------+---------| |>> | LUN 2 supports ST506/412 MFM | W7 | open | | | disk type | | | |---+----------------------------------+-----------+---------| |>> | LUN 2 supports flexible disk | W7 | closed | | | (5400, 5200, 5204) | | | |---+----------------------------------+-----------+---------| |>> | LUN 2 is reserved (5300) | W7 | closed | |---+----------------------------------+-----------+---------| |>> | LUN 3 supports ST506/412 MFM | W8 | open | | | disk type (5200, 5204) | | | |---+----------------------------------+-----------+---------| |>> | LUN 3 supports tape drive (5400, | W8 | open | | | 5300) | | | |---+----------------------------------+-----------+---------| |>> | LUN 3 supports flexible disk | W8 | closed | | | (5400, 5200, 5204) | | | |---+----------------------------------+-----------+---------| |>> | LUN 3 supports ST506/412 MFM | W8 | closed | | | disk type (5300) | | | |---+----------------------------------+-----------+---------| |>> | Motor on signal always enabled | W14 | closed | | | (5200, 5204, 5400) | | | |---+----------------------------------+-----------+---------| |>> | Motor on signal enabled by | W14 | open | | | command | | | |---+----------------------------------+-----------+---------| |>> | Ready override signal for | W15 | closed | | | flexible disk enabled (for | | | | | drives not supporting Ready | | | | | signal) | | | |---+----------------------------------+-----------+---------| |>> | Ready override signal for | W15 | open | | | flexible disk disabled (for | | | | | drives i supporting Ready | | | | | signal) | | | |---+----------------------------------+-----------+---------| |>> | Factory configured - do not | W17 | N/A | | | alter | | | |---+----------------------------------+-----------+---------| |>> | Factory configured - do not | W18 | N/A | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | +------------------------------------------------------------+