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# MICRO EQUIPMENT CORPORATION
UN-105
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 16-bit, ISA |
|-------------------+----------------------------------------|
| Size: | Half-length, half-height card |
|-------------------+----------------------------------------|
| Hard drive | Two IDE (AT) Interface drives |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB, 1.44MB drives |
| supported: | |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------+-----------------|
| 4-pin connector - drive active LED | P1 |
|------------------------------------------+-----------------|
| 40-pin IDE(AT) interface connector | P2 |
|------------------------------------------+-----------------|
| 34-pin connector - floppy drive | P3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOPPY DRIVE/IDE INTERFACE CONFIGURATION |
|------------------------------------------------------------|
| Floppy Drive interface | IDE(AT) interface | JP1 |
| (P3) | (P2) | |
|------------------------+-------------------+---------------|
| ยป | Primary interface | Primary interface | pins 1 & 3, 2 |
| | in system | in system | & 4 closed |
|---+--------------------+-------------------+---------------|
| | Primary interface | Secondary | pins 3 & 5, 4 |
| | in system | interface in | & 6 closed |
| | | system | |
|---+--------------------+-------------------+---------------|
| | Secondary | Primary interface | pins 2 & 4, 3 |
| | interface in | in system | & 5 closed |
| | system | | |
|---+--------------------+-------------------+---------------|
| | Secondary | Secondary | pins 1 & 3, 4 |
| | interface in | interface in | & 6 closed |
| | system | system | |
+------------------------------------------------------------+