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# TEKRAM TECHNOLOGY COMPANY, LTD.
DC - 880B
+------------------------------------------------------------+
| Q3/95 |
|------------------------------------------------------------|
| Data bus: | 32-bit VL-Bus |
|---------------+--------------------------------------------|
| Size: | Full-length, half-height card |
|---------------+--------------------------------------------|
| Hard drive | Up to seven SCSI drives |
| supported: | |
|---------------+--------------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB, or 1.44MB, or |
| supported: | 2.88MB drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------+-----------------|
| 50-pin SCSI connector - external | CN1 |
|------------------------------------------+-----------------|
| 50-pin SCSI connector - internal | CN2 |
|------------------------------------------+-----------------|
| 34-pin cable connector - floppy drive | CN3 |
|------------------------------------------+-----------------|
| 2-pin connector - drive active LED | JP1 |
|------------------------------------------+-----------------|
| 4-pin connector - speaker | JP2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------------+--------------+---------|
| » | Floppy drive enabled | JP3/jumper 1 | closed |
|---+-------------------------------+--------------+---------|
| » | Floppy drive disabled | JP3/jumper 1 | open |
|---+-------------------------------+--------------+---------|
| » | Factory configured - do not | JP3/jumper 5 | open |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS |
|------------------------------------------------------------|
| Address | JP3/jumper 2 | JP3/jumper 3 | JP3/jumper 4 |
|------------+---------------+---------------+---------------|
| » | 330h | closed | closed | closed |
|---+--------+---------------+---------------+---------------|
| » | 130h | open | open | closed |
|---+--------+---------------+---------------+---------------|
| » | 134h | open | open | open |
|---+--------+---------------+---------------+---------------|
| » | 230h | open | closed | closed |
|---+--------+---------------+---------------+---------------|
| » | 234h | open | closed | open |
|---+--------+---------------+---------------+---------------|
| » | 334h | closed | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+-----------------------+---------------------|
| 512KB | (2) 256K x 9 | NONE |
|--------------+-----------------------+---------------------|
| 1MB | (2) 256K x 9 | (2) 256K x 9 |
|--------------+-----------------------+---------------------|
| 2MB | (2) 1M x 9 | NONE |
|--------------+-----------------------+---------------------|
| 2.5MB | (2) 1MB x 9 | (2) 256K x 9 |
|--------------+-----------------------+---------------------|
| 4MB | (2) 1MB x 9 | (2) 1MB x 9 |
|--------------+-----------------------+---------------------|
| 8MB | (2) 4MB x 9 | NONE |
|--------------+-----------------------+---------------------|
| 8.5MB | (2) 4MB x 9 | (2) 256K x 9 |
|--------------+-----------------------+---------------------|
| 10MB | (2) 4MB x 9 | (2) 1MB x 9 |
|--------------+-----------------------+---------------------|
| 16MB | (2) 4MB x 9 | (2) 4MB x 9 |
|------------------------------------------------------------|
| Note: Bank 0 must be installed while SIMM’s can be mixed |
| in any combination not exceeding 16MB. |
+------------------------------------------------------------+