NIC Type	ARCnet
Transfer Rate	2.5Mbps
Data Bus	8-bit ISA
Topology	Star
Wiring Type	RG-62A/U 93ohm coaxial
Boot ROM	Available

NODE ADDRESS
Node	SW1/1	SW1/2	SW1/3	SW1/4	SW1/5	SW1/6	SW1/7	SW1/8
0	-	-	-	-	-	-	-	-
1	Off	Off	Off	Off	Off	Off	Off	On
2	Off	Off	Off	Off	Off	Off	On	Off
3	Off	Off	Off	Off	Off	Off	On	On
4	Off	Off	Off	Off	Off	On	Off	Off
251	On	On	On	On	On	Off	On	On
252	On	On	On	On	On	On	Off	Off
253	On	On	On	On	On	On	Off	On
254	On	On	On	On	On	On	On	Off
255	On	On	On	On	On	On	On	On
Note:Node address 0 is used for messaging between nodes and must not be used. A total of 255 node address settings are available. The switches are a binary representation of the decimal node addresses. Switch 1 is the Least Significant Bit and switch 8 is the Most Significant Bit. The switches have the following decimal values: switch 1=128, 2=64, 3=32, 4=16, 5=8, 6=4, 7=2, 8=1. Turn on the switches and add the values of the on switches to obtain the correct node address. (On=1, Off=0)

INTERRUPT REQUEST
IRQ	JP1A	JP1B	JP1C	JP1D	JP1E
2	Closed	Open	Open	Open	Open
3	Open	Closed	Open	Open	Open
4	Open	Open	Closed	Open	Open
5	Open	Open	Open	Closed	Open
7	Open	Open	Open	Open	Closed

I/O BASE ADDRESS
Address		JP2A	JP2B	JP2C
	260h	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
	290h	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
»	2E0h	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
	300h	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
	350h	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
	380h	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

RESPONSE TIMEOUTS
Response Time		JP4A	JP4B
»	78µs	Pins 1 & 2 closed	Pins 1 & 2 closed
	285µs	Pins 1 & 2 closed	Pins 2 & 3 closed
	563µs	Pins 2 & 3 closed	Pins 1 & 2 closed
	1130µs	Pins 2 & 3 closed	Pins 2 & 3 closed
Note:All NICs on the network must have this option set the same.

BOOT ROM
Setting		JP5
»	Disabled	Pins 2 & 3 closed
	Enabled	Pins 1 & 2 closed

BASE MEMORY ADDRESS & BOOT ROM ADDRESS
Base		Boot ROM	JP3A	JP3B	JP3C	JP3D	JP3E
	C0000h	C2000h	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
	C0800h	C2000h	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2
	C1000h	C2000h	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
	C1800h	C2000h	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
	C4000h	C6000h	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
	C4800h	C6000h	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
	C5000h	C6000h	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
	C5800h	C6000h	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
	CC000h	CE000h	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
	CC800h	CE000h	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2
	CD000h	CE000h	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
	CD800h	CE000h	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
»	D0000h	D2000h	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
	D0800h	D2000h	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
	D1000h	D2000h	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
	D1800h	D2000h	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
	D4000h	D6000h	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
	D4800h	D6000h	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2
	D5000h	D6000h	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
	D5800h	D6000h	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
	D8000h	DA000h	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
	D8800h	DA000h	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
	D9000h	DA000h	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
	D9800h	DA000h	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
	DC000h	DE000h	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
	DC800h	DE000h	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2
	DD000h	DE000h	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
	DD800h	DE000h	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
	E0000h	E2000h	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
	E0800h	E2000h	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
	E1000h	E2000h	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
	E1800h	E2000h	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
Note:Pins designated should be in the closed position.