NCL AMERICA
NDC 5027
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Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two MFM ST506/412
Floppy drives supported: None
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CONNECTIONS | |
|
Functions |
Location |
|
34-pin control cable connector-hard drive |
CN1 |
|
20-pin data cable connector-drive 0 |
CN2 |
|
20-pin data cable connector-drive 1 |
CN3 |
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USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
Factory configured - do not alter |
JP1/all |
N/A | |
|
Recalibration speed is fast or normal |
JP4 |
open | |
|
Recalibration speed is slow |
JP4 |
closed | |
|
Supports up to 8 heads |
JP6 |
pins 1 & 2 closed | |
|
Supports up to 16 heads |
JP6 |
pins 2 & 3 closed | |
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BIOS DRIVE TYPE TABLE FOR THE NCL5027 - SW1 | |||||||||
|
Hd/Cyl |
# |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
7/699 |
1 |
on |
on |
on |
off |
N/A |
N/A |
N/A |
on |
|
6/612 |
1 |
on |
on |
off |
off |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
off |
on |
on |
off |
off | |
|
4/640 |
1 |
on |
off |
on |
off |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
off |
on |
off |
on |
off | |
|
4/612 |
1 |
on |
off |
on |
off |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
off |
on |
off |
on |
off | |
|
2/612 |
1 |
off |
on |
on |
off |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
off |
off |
on |
on |
off | |
|
2/306 |
1 |
off |
on |
off |
off |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
off |
off |
on |
off |
off | |
|
4/320 |
1 |
off |
off |
on |
off |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
off |
off |
off |
on |
off | |
|
4/306 |
1 |
off |
off |
off |
off |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
off |
off |
off |
off |
off | |
|
6/640 |
1 |
on |
on |
on |
on |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
on |
on |
on |
on |
off | |
|
5/733 |
1 |
on |
on |
off |
on |
N/A |
N/A |
N/A |
off |
|
2 |
N/A |
N/A |
N/A |
on |
on |
on |
off |
off | |
|
7/733 |
1 |
on |
off |
on |
on |
N/A |
N/A |
N/A |
on |
|
5/830 |
1 |
on |
off |
off |
on |
N/A |
N/A |
N/A |
on |
|
7/830 |
1 |
off |
on |
on |
on |
N/A |
N/A |
N/A |
on |
|
10/830 |
1 |
off |
on |
off |
on |
N/A |
N/A |
N/A |
on |
|
15/918 |
1 |
off |
off |
on |
on |
N/A |
N/A |
N/A |
on |
|
5/977 |
1 |
off |
off |
off |
on |
N/A |
N/A |
N/A |
on |
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Note:This controller has a built-in, low-level format program. To enter the program run the DEBUG utility supplied with DOS and at the prompt enter: G=C800:5 SW1/switch 8 must be "on" before power-up to enable the drive splitting feature. | |||||||||