ACS, INC.
ET286+
|
Processor |
80286 |
|
Processor Speed |
6/10MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
4MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
351mm x 304mm |
|
I/O Options |
Parallel ports (2), serial ports (3) |
|
NPU Options |
80287 |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J25 |
Parallel port LPT1 |
P2 |
|
Power LED & keylock |
J34 |
Serial port 2 |
P3 |
|
Speaker |
J35 |
Parallel port LPT2 |
P4 |
|
Serial port 3 |
P1 |
Serial port 1 |
P5 |
|
USER CONFIGURABLE SETTINGS |
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|
Function |
Label |
Position |
|
|
|
Serial port 2 IRQ4 enabled |
J17/pins 9 & 10 |
Closed |
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|
Serial port 2 IRQ4 disabled |
J17/pins 9 & 10 |
Open |
|
|
Serial port 1 IRQ3 enabled |
J17/pins 11 & 12 |
Closed |
|
|
Serial port 1 IRQ3 disabled |
J17/pins 11 & 12 |
Open |
|
|
Parallel port 1 IRQ7 enabled |
J17/pins 13 & 14 |
Closed |
|
|
Parallel port 1 IRQ7 disabled |
J17/pins 13 & 14 |
Open |
|
|
Parallel port 2 IRQ5 enabled |
J17/pins 15 & 16 |
Closed |
|
|
Parallel port 2 IRQ5 disabled |
J17/pins 15 & 16 |
Open |
|
» |
Serial port 1 select RS-232C |
J18 |
Pins 5 & 6, 9 & 10 closed |
|
|
Serial port 1 select RS-422 |
J18 |
Pins 1 & 2, 3 & 4, 7 & 8 closed |
|
» |
Serial port 2 select RS-232C |
J19 |
Pins 1 & 2, 5 & 6 closed |
|
|
Serial port 2 select RS-422 |
J19 |
Pins 3 & 4, 7 & 8, 9 & 10 closed |
|
» |
Serial port 3 select RS-232C |
J20 |
Pins 1 & 2, 5 & 6 closed |
|
|
Serial port 3 select RS-422 |
J20 |
Pins 3 & 4, 7 & 8, 9 & 10 closed |
|
|
Jumper information unavailable |
J21 |
Unidentified |
|
» |
Power good disabled |
J22 |
Open |
|
|
Reset using power good |
J22 |
Closed |
|
» |
6MHz using 1 wait state |
J23 |
Open |
|
|
6MHz using 0 wait states |
J23 |
Closed |
|
|
Jumper information unavailable |
J26 |
Unidentified |
|
» |
Monitor type select color |
J27/pins 1 & 2 |
Closed |
|
|
Monitor type select monochrome |
J27/pins 1 & 2 |
Open |
|
» |
Keyboard type select PC-AT |
J27/pins 3 & 4 |
Closed |
|
|
Keyboard type select PC-XT |
J27/pins 3 & 4 |
Open |
|
|
Jumper information unavailable |
J28 |
Unidentified |
|
|
Jumper information unavailable |
J30 |
Unidentified |
|
» |
Wait state select 1 wait state |
J31 |
Pins 2 & 4 closed |
|
|
Wait state select 2 wait states |
J31 |
Pins 1 & 3 closed |
|
USER CONFIGURABLE SETTINGS (CON'T) |
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|
Function |
Label |
Position |
|
|
|
Serial port 1 enabled |
J32/pins 1 & 2 |
Closed |
|
|
Serial port 1 disabled |
J32/pins 1 & 2 |
Open |
|
|
Serial port 2 enabled |
J32/pins 3 & 4 |
Closed |
|
|
Serial port 2 disabled |
J32/pins 3 & 4 |
Open |
|
|
Serial port 3 enabled |
J32/pins 5 & 6 |
Closed |
|
|
Serial port 3 disabled |
J32/pins 5 & 6 |
Open |
|
|
Parallel port 1 enabled |
J32/pins 7 & 8 |
Closed |
|
|
Parallel port 1 disabled |
J32/pins 7 & 8 |
Open |
|
|
Parallel port 2 enabled |
J32/pins 11 & 12 |
Closed |
|
|
Parallel port 2 disabled |
J32/pins 11 & 12 |
Open |
|
|
Jumper information unavailable |
J33 |
Unidentified |
|
» |
BIOS type select 27128 |
J36 |
Pins 1 & 3 closed |
|
|
BIOS type select 27256 |
J36 |
Pins 2 & 4, 3 & 5 closed |
|
|
BIOS type select 27512 |
J36 |
Pins 3 & 5, 4 & 6 closed |
|
|
Jumper information unavailable |
J37 |
Unidentified |
|
|
Jumper information unavailable |
J38 |
Unidentified |
|
DRAM CONFIGURATION |
||
|
Size |
Bank 0 |
Bank 1 |
|
256KB |
(16) 4164 |
(16) 4164 |
|
512KB |
(16) 41256 |
None |
|
640KB |
(16) 41256 |
(16) 4164 |
|
1MB |
(16) 41256 |
(16) 41256 |
|
1640KB * ** |
(16) 411000 |
(16) 41256 |
|
2MB ** |
(16) 411000 |
None |
|
2128KB (A) * ** |
(16) 41256 |
(16) 411000 |
|
2128KB (B) * ** |
(16) 411000 |
(16) 41256 |
|
4MB ** |
(16) 411000 |
(16) 411000 |
|
Note: The size are shown without parity chips The size of the parity is unidentified. The location of banks 0 & 1 are unidentified. * = Configuration not available on Rev. A boards. ** = Requires special configuration for 1MB memory devices. |
||
|
DRAM SWITCH CONFIGURATION |
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|
Size |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
|
256KB |
On |
On |
On |
On |
|
512KB |
Off |
Off |
On |
On |
|
640KB |
Off |
On |
On |
On |
|
1MB |
Off |
On |
On |
Off |
|
1640KB |
Off |
Off |
Off |
On |
|
2MB |
Off |
Off |
On |
Off |
|
2128KB (A) |
Off |
On |
Off |
Off |
|
2128KB (B) |
Off |
On |
Off |
On |
|
4MB |
Off |
Off |
Off |
Off |
|
DRAM JUMPER CONFIGURATION |
|
|
Size |
J39 |
|
4164/41256 |
1 & 2, 4 & 5, 10 & 11, 13 & 14, 19 & 20, 22 & 23 |
|
411000 |
5 & 6, 8 & 9, 14 & 15, 17 & 18, 20 & 21, 23 & 24 |
|
Note: Pins designated should be in the closed position. |
|
|
CPU SPEED SELECTION |
|
|
Speed |
J29 |
|
Speed select by keyboard CTRL/ALT/SHIFT/DEL changes speed from 6MHZ to 10MHz and vice versa |
Pins 1 & 2 closed |
|
6MHz |
Pins 2 & 3 closed |
|
10MHz |
Open |
|
SERIAL PORT INTERRUPT SELECTION |
|||||||||
|
IRQ |
J17/pins 1 & 2 |
J17/pins 3 & 4 |
J17/pins 5 & 6 |
J17/pins 7 & 8 |
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|
IRQ10 |
Closed |
Open |
Open |
Open |
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|
IRQ11 |
Open |
Closed |
Open |
Open |
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|
IRQ12 |
Open |
Open |
Closed |
Open |
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|
IRQ15 |
Open |
Open |
Open |
Closed |
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