TELECAT-286 Motherboard Settings and Configuration

Processor	80286
Processor Speed	6/8MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	1MB
Maximum Video Memory	None
Cache	None
BIOS	Unidentified
Dimensions	355mm x 304mm
I/O Options	Parallel port, serial port, VGA port
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
Parallel port	CN1	Speaker	CN3
Serial port	CN2	External battery	J20

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	SW1/1	Off
»	Monitor type select monochrome	SW1/2	Off
	Monitor type select color	SW1/2	On
»	Factory configured - do not alter	SW1/5	Unidentified
»	Factory configured - do not alter	SW1/6	Unidentified
»	Factory configured - do not alter	SW1/7	Unidentified
	Battery enabled	SW1/8	On
	Battery disabled	SW1/8	Off

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
256KB	(9) 41256	None	None	None
512KB	(9) 41256	(9) 41256	None	None
640KB	(9) 41256	(9) 41256	(9) 4164	(9) 4164
1MB	(9) 41256	(9) 41256	(9) 41256	(9) 41256
Note: The location of the banks are unidentified.

DRAM SWITCH CONFIGURATION
Size	SW1/3	SW1/4
256KB	On	On
512KB	Off	On
640KB	On	Off
1MB	Off	Off

NPU SPEED SELECTION
Speed	W9	W10
4MHz	Pins 2 & 3 closed	Pins 1 & 2 closed
4.77MHz	Pins 1 & 2 closed	Pins 1 & 2 closed
5.33MHz	Pins 2 & 3 closed	Pins 1 & 2 closed
Custom (supplied by user)	N/A	Pins 2 & 3 closed

BIOS SELECTION
Type		W3	W4
»	32KB BIOS	Pins 2 & 3 closed	Pins 1 & 2 closed
	128KB BIOS	Pins 1 & 2 closed	Pins 2 & 3 closed

PARALLEL PORT SELECTION
Setting	W2
Set as port 1	Pins 1 & 2, 3 & 4 closed
Set as port 2	Pins 5 & 6, 7 & 8 closed

SERIAL PORT SELECTION
Setting	W1
Set as port 1	Pins 1 & 2, 3 & 4 closed
Set as port 2	Pins 5 & 6, 7 & 8 closed