NIC Type	Ethernet
Transfer Rate	10Mbps
Data Bus	16-bit ISA
Topology	Star
Wiring Type	Unshielded twisted pair(4)
Boot ROM	Available

CONNECTIONS
Purpose	Location	Purpose	Location
DE-205/4 TP connector	CN1	DE-205/COAX connector	CN3
Unidentified	CN2

BASE I/O ADDRESS SELECTION
Address	JP6/A	JP6/B	JP6/C	JP6/D	JP6/E
100h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
120h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
140h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
160h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
180h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
300h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
360h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
380h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
3A0h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
3C0h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
3E0h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
Note: All possible addresses between 100h and 3E0h are usable. The sum of JP6/1 and JP6/2 represent the first digit. The sum of JP6/3-5 represent the second digit. The third digit is always zero. JP6/1=200h, JP6/2=100h, JP6/3=80h, JP6/4=40h, JP6/5=20h.

INTERRUPT SELECTION
IRQ		JP3/A	JP3/B	JP3/C	JP3/D	JP3/E
»	3	Closed	Open	Open	Open	Open
»	4	Open	Closed	Open	Open	Open
»	5	Open	Open	Closed	Open	Open
»	6	Open	Open	Open	Closed	Open
»	7	Open	Open	Open	Open	Closed
»	9	Open	Open	Open	Open	Open
	10	Open	Open	Open	Open	Open
	11	Open	Open	Open	Open	Open
	12	Open	Open	Open	Open	Open
	14	Open	Open	Open	Open	Open
	15	Open	Open	Open	Open	Open

INTERRUPT SELECTION (CON’T)
IRQ		JP3/F	JP3/G	JP3/H	JP3/I	JP/J	JP3/K
»	3	Open	Open	Open	Open	Open	Open
»	4	Open	Open	Open	Open	Open	Open
»	5	Open	Open	Open	Open	Open	Open
»	6	Open	Open	Open	Open	Open	Open
»	7	Open	Open	Open	Open	Open	Open
»	9	Closed	Open	Open	Open	Open	Open
	10	Open	Closed	Open	Open	Open	Open
	11	Open	Open	Closed	Open	Open	Open
	12	Open	Open	Open	Closed	Open	Open
	14	Open	Open	Open	Open	Closed	Open
	15	Open	Open	Open	Open	Open	Closed

SHARED RAM CONFIGURATION
Address		JP5/A	JP5/B	JP5/C
»	D0000h	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
»	C0000h	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
»	C4000h	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
»	C8000h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
»	CC000h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
»	D4000h	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
»	D8000h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
»	DC000h	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

BOOT ROM CONFIGURATION
Setting		JP2
»	Disabled	Pins 2 & 3 closed
»	Enabled	Pins 1 & 2 closed

SHARED MEMORY CONFIGURATION
Setting		JP4
»	Enabled	Pins 1 & 2 closed
»	Disabled	Pins 2 & 3 closed

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
LED1	Yellow	On	Collision detected on network
LED1	Yellow	Off	No collision detected on network
LED2	Green	On	Port/1 Network connection is good
LED2	Green	Off	Port/1 Network connection is broken
LED3	Green	On	Port/2 Network connection is good
LED3	Green	Off	Port/2 Network connection is broken
LED4	Green	On	Port/3 Network connection is good
LED4	Green	Off	Port/3 Network connection is broken
LED5	Green	On	Port/4 Network connection is good
LED5	Green	Off	Port/4 Network connection is broken