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# MODULAR CIRCUIT TECHNOLOGY
MCT-PDC-HD4
Card Type Floppy drive controller
Chipset/Controller Unidentified
I/O Options Floppy drive interface (4)
Maximum DRAM N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Floppy drive | CN1 | Floppy drive | CN2 |
| interface (for | | interface (for | |
| drives 1 & 2) | | drives 3 & 4) | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FIRST DRIVE TYPE SELECTION |
|------------------------------------------------------------|
| Type | J1/A | J1/B |
|--------------------+--------------------+------------------|
| 360KB | Closed | Open |
|--------------------+--------------------+------------------|
| 720KB | Closed | Closed |
|--------------------+--------------------+------------------|
| 1.2MB | Open | Open |
|--------------------+--------------------+------------------|
| 1.44MB | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SECOND DRIVE TYPE SELECTION |
|------------------------------------------------------------|
| Type | J1/C | J1/D |
|--------------------+-------------------+-------------------|
| 360KB | Closed | Open |
|--------------------+-------------------+-------------------|
| 720KB | Closed | Closed |
|--------------------+-------------------+-------------------|
| 1.2MB | Open | Open |
|--------------------+-------------------+-------------------|
| 1.44MB | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| THIRD DRIVE TYPE SELECTION |
|------------------------------------------------------------|
| Type | J1/E | J1/F |
|--------------------+--------------------+------------------|
| 360KB | Closed | Open |
|--------------------+--------------------+------------------|
| 720KB | Closed | Closed |
|--------------------+--------------------+------------------|
| 1.2MB | Open | Open |
|--------------------+--------------------+------------------|
| 1.44MB | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FOURTH DRIVE TYPE SELECTION |
|------------------------------------------------------------|
| Type | J1/G | J1/H |
|--------------------+-------------------+-------------------|
| 360KB | Closed | Open |
|--------------------+-------------------+-------------------|
| 720KB | Closed | Closed |
|--------------------+-------------------+-------------------|
| 1.2MB | Open | Open |
|--------------------+-------------------+-------------------|
| 1.44MB | Open | Closed |
+------------------------------------------------------------+