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 [Image] CONNECTIONS 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 Function Label Position Serial port 2 IRQ4 enabled J17/pins 9 & Closed 10 Serial port 2 IRQ4 J17/pins 9 & Open disabled 10 Serial port 1 IRQ3 enabled J17/pins 11 Closed & 12 Serial port 1 IRQ3 J17/pins 11 Open disabled & 12 Parallel port 1 IRQ7 J17/pins 13 Closed enabled & 14 Parallel port 1 IRQ7 J17/pins 13 Open disabled & 14 Parallel port 2 IRQ5 J17/pins 15 Closed enabled & 16 Parallel port 2 IRQ5 J17/pins 15 Open disabled & 16 » Serial port 1 select J18 Pins 5 & 6, 9 & 10 RS-232C closed Serial port 1 select J18 Pins 1 & 2, 3 & 4, 7 & RS-422 8 closed » Serial port 2 select J19 Pins 1 & 2, 5 & 6 RS-232C closed Serial port 2 select J19 Pins 3 & 4, 7 & 8, 9 & RS-422 10 closed » Serial port 3 select J20 Pins 1 & 2, 5 & 6 RS-232C closed Serial port 3 select J20 Pins 3 & 4, 7 & 8, 9 & RS-422 10 closed Jumper information J21 Unidentified unavailable » 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 J26 Unidentified unavailable » Monitor type select color J27/pins 1 & Closed 2 Monitor type select J27/pins 1 & Open monochrome 2 » Keyboard type select PC-AT J27/pins 3 & Closed 4 Keyboard type select PC-XT J27/pins 3 & Open 4 Jumper information J28 Unidentified unavailable Jumper information J30 Unidentified unavailable » Wait state select 1 wait J31 Pins 2 & 4 closed state Wait state select 2 wait J31 Pins 1 & 3 closed states USER CONFIGURABLE SETTINGS (CON'T) Function Label Position Serial port 1 enabled J32/pins 1 & Closed 2 Serial port 1 disabled J32/pins 1 & Open 2 Serial port 2 enabled J32/pins 3 & Closed 4 Serial port 2 disabled J32/pins 3 & Open 4 Serial port 3 enabled J32/pins 5 & Closed 6 Serial port 3 disabled J32/pins 5 & Open 6 Parallel port 1 enabled J32/pins 7 & Closed 8 Parallel port 1 disabled J32/pins 7 & Open 8 Parallel port 2 enabled J32/pins 11 Closed & 12 Parallel port 2 disabled J32/pins 11 Open & 12 Jumper information J33 Unidentified unavailable » 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 J37 Unidentified unavailable Jumper information J38 Unidentified unavailable 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 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 Pins 1 & 2 closed CTRL/ALT/SHIFT/DEL changes speed from 6MHZ to 10MHz and vice versa 6MHz Pins 2 & 3 closed 10MHz Open SERIAL PORT INTERRUPT SELECTION IRQ J17/pins 1 & J17/pins 3 & J17/pins 5 & J17/pins 7 2 4 6 & 8 IRQ10 Closed Open Open Open IRQ11 Open Closed Open Open IRQ12 Open Open Closed Open IRQ15 Open Open Open Closed