CMS ENHANCEMENTS, INC.
======================

   HBA-CMS2

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:     | 8-bit ISA                                  |
   |---------------+--------------------------------------------|
   | Size:         | Half-length, full-height card              |
   |---------------+--------------------------------------------|
   | Hard drive    | Two MFM ST506/412 drives, up to seven SCSI |
   | supported:    | devices                                    |
   |---------------+--------------------------------------------|
   | Floppy drives | None                                       |
   | supported:    |                                            |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/C-D/20512-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                    |  Location  |
   |-----------------------------------------------+------------|
   | 50-pin SCSI connector                         |     J2     |
   |-----------------------------------------------+------------|
   | 34-pin edge connector - floppy drive          |     J3     |
   |-----------------------------------------------+------------|
   | 34-pin control cable connector - floppy drive |     J5     |
   |-----------------------------------------------+------------|
   | External power connector                      |     J6     |
   |-----------------------------------------------+------------|
   | Drive active LED connector                    |     J7     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | OWS signal disabled            |   JP2    |    open    |
   |---+--------------------------------+----------+------------|
   |   | OWS signal enabled             |   JP2    |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | IRQ3 enabled                   |   JP3    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | IRQ5 enabled                   |   JP3    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Interrupt disabled             |   JP3    |    open    |
   |---+--------------------------------+----------+------------|
   |>> | 360KB/720KB/1.2MB/1.44MB       |   JP5    | pins 2 & 3 |
   |   | floppy drives supported        |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | 360KB/720KB floppy drives      |   JP5    | pins 1 & 2 |
   |   | supported                      |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | AT register emulation enabled  |   JP6    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | AT register emulation disabled |   JP6    | pins 1 & 2 |
   |   |                                |          |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BASE MEMORY ADDRESS SELECT                 |
   |------------------------------------------------------------|
   |       Address        |      JP1/A       |      JP1/B       |
   |----------------------+------------------+------------------|
   |>> |      C8000h      |       open       |       open       |
   |---+------------------+------------------+------------------|
   |   |      CC000h      |       open       |      closed      |
   |---+------------------+------------------+------------------|
   |   |      DC000h      |      closed      |      closed      |
   |---+------------------+------------------+------------------|
   |   |     Invalid      |      closed      |       open       |
   +------------------------------------------------------------+