XINET LS2202/LS2203 Motherboard Settings and Configuration

Processor	80286
Processor Speed	20MHz
Chip Set	C & T
Max. Onboard DRAM	4MB
SRAM Cache	None
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	AUI ethernet interface, BNC ethernet interface, floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port
NPU Options	80287

CONNECTIONS
Purpose	Location	Purpose	Location
AUI ethernet interface	C1	IDE interface	C6
BNC ethernet interface	C2	Floppy drive interface	C7
Parallel port	C3	External battery	JP4
Serial port (COM2)	C4	Reset switch	JP5
Serial port (COM1)	C5	VGA connection	JP304

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	BIOS type select 27256	JP3	pins 1 & 2 closed
	BIOS type select 27128	JP3	pins 2 & 3 closed
»	Monitor type select monochrome	JP8	Open
	Monitor type select color	JP8	Closed
»	CPU speed keyboard selectable	JP9	Closed
	CPU speed "normal"	JP9	Open
»	Floppy drive interface enabled	JP207	pins 2 & 3 closed
	Floppy drive interface disabled	JP207	pins 1 & 2 closed
»	IDE interface enabled	JP214 & JP215	pins 2 & 3 closed
	IDE interface disabled	JP214 & JP215	pins 1 & 2 closed

SERIAL PORT CONFIGURATION
Port 1 (C3)		Port 2 (C4)	JP208	JP209	JP210
»	Enabled	Enabled	pins 2 & 3 closed	pins 2 & 3 closed	pins 2 & 3 closed
	Enabled	Disabled	pins 2 & 3 closed	pins 1 & 2 closed	pins 2 & 3 closed
	Disabled	Enabled	pins 2 & 3 closed	pins 2 & 3 closed	pins 1 & 2 closed
	Disabled	Disabled	pins 1 & 2 closed	pins 1 & 2 closed	pins 1 & 2 closed

PARALLEL PORT (C3) CONFIGURATION
LPT	I/O Address	JP211	JP212
LPT 1	3BCh	pins 2 & 3 closed	pins 1 & 2 closed
LPT 2	378h	pins 2 & 3 closed	pins 2 & 3 closed
LPT 3	278h	pins 1 & 2 closed	pins 2 & 3 closed
Disabled	N/A	pins 1 & 2 closed	pins 1 & 2 closed

VIDEO CONFIGIURATION
Function		JP301	JP303
»	Onboard video enabled	pins 2 & 3 closed	pins 1 & 2 closed
	Onboard video disabled	pins 1 & 2 closed	pins 2 & 3 closed

ETHERNET NETWORK INTERRUPT CONFIGURATION
Function		Jumper	Position
»	Interrupt request select IRQ3	JP106	pins 3 & 4 closed
	Interrupt request select IRQ2	JP106	pins 1 & 2 closed
	Interrupt request select IRQ4	JP106	pins 5 & 6 closed
	Interrupt request select IRQ5	JP106	pins 7 & 8 closed

ETHERNET I/O BASE ADDRESS CONFIGURATION
Function		Jumper	Position
»	I/O base address 320h	JP119	pins 3 & 4 closed
	I/O base address 300h	JP119	pins 1 & 2 closed
	I/O base address 340h	JP119	pins 5 & 6 closed
	I/O base address 360h	JP119	pins 7 & 8 closed

ETHERNET BOOT ROM MEMORY ADDRESS CONFIGURATION
Function		Jumper	Position
»	Boot ROM memory address CC000h	JP110	pins 3 & 4 closed
	Boot ROM memory address C8000h	JP110	pins 1 & 2 closed
	Boot ROM memory address D0000h	JP110	pins 5 & 6 closed

ETHERNET CABLE TYPE CONFIGURATION
Type	JP113-JP118	JP123
BNC	pins 2 & 3 closed	Closed
AUI tranceiver via 9-pin	pins 1 & 2 closed	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1
512KB	(2) 256K x 9	NONE
1MB	(2) 256K x 9	(2) 256K x 9
2MB	(2) 1M x 9	NONE
4MB	(2) 1M x 9	(2) 1M x 9