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16-BIT ARCNET ADAPTER
NETWORK INTERFACE TECHNOLOGY CORPORATION

16-BIT ARCNET ADAPTER

NIC Type	ARCnet
Transfer Rate	2.5Mbps
Data Bus	8-bit ISA
Topology	Star Linear Bus
Wiring Type	Unshielded twisted pair RG58A/U 50ohm coaxial
Boot ROM	Available

CABLE TYPE
Type		J5/A	J5/B	J5/C
�	RG58A/U 50ohm coaxial	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	Unshielded twisted pair	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

CONNECTIONS
Purpose	Location
J1	External LED connector 1
J2	External LED connector 2

DIAGNOSTIC LED
LED	Color	Status	Condition
LED1	Red	On or Blinking	Data transmission is occurring
LED2	Green	On	Proper connection established
LED2	Green	Blinking	Reconfiguration occurring
LED1 & LED2	Red & Green	Off	Call Technical Support

INTERRUPT SELECT
IRQ	J7/A	J7/B	J7/C	J7/D	J7/E	J7/F	J7/G
IRQ2	Closed	Open	Open	Open	Open	Open	Open
IRQ3	Open	Closed	Open	Open	Open	Open	Open
IRQ4	Open	Open	Closed	Open	Open	Open	Open
IRQ5	Open	Open	Open	Closed	Open	Open	Open
IRQ10	Open	Open	Open	Open	Closed	Open	Open
IRQ11	Open	Open	Open	Open	Open	Closed	Open
IRQ12	Open	Open	Open	Open	Open	Open	Closed

I/O ADDRESS SELECT
Address Range	J4/F	J4/G	J4/H
260h - 26Fh	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
290h - 29Fh	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
2E0h - 2EFh	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
2F0h - 2FFh	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
300h - 30Fh	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
350h - 35Fh	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
380h - 38Fh	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
3E0h - 3EFh	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

BASE MEMORY ADDRESS SELECT
Address Range	J4/A	J4/B	J4/C	J4/D	J4/E
C0000h - C07FFh	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
C0800h - C0FFFh	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
C1000h - C17FFh	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
C1800h - C1FFFh	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2
C4000h - C47FFh	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
C4800h - C4FFFh	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
C5000h - C57FFh	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
C5800h - C5FFFh	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2
CC000h - CC7FFh	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
CC800h - CCFFFh	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
CD000h - CD7FFh	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
CD800h - CDFFFh	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2
D0000h - D07FFh	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2
D0800h - D0FFFh	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2
D4800h - D4FFFh	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
D1800h - D1FFFh	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2
D4000h - D47FFh	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
D5000h - D57FFh	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
D5800h - D5FFFh	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3
D8000h - D87FFh	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
D8800h - D8FFFh	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
D9000h - D97FFh	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
D9800h - D9FFFh	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3
DC000h - DC7FFh	Pins 1 & 2	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
DC800h - DCFFFh	Pins 2 & 3	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
DD000h - DD7FFh	Pins 1 & 2	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
DD800h - DDFFFh	Pins 2 & 3	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3
E0000h - E07FFh	Pins 1 & 2	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
E0800h - E0FFFh	Pins 2 & 3	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
E1000h - E17FFh	Pins 1 & 2	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
E1800h - E1FFFh	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3	Pins 2 & 3
Note: All Pins designated should be in the closed position.

BOOT ROM
Setting		J3
�	Enabled	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed

NODE ADDRESS
Node	SW1/1	SW1/2	SW1/3	SW1/4	SW1/5	SW1/6	SW1/7	SW1/8
0	-	-	-	-	-	-	-	-
1	Off	On	On	On	On	On	On	On
2	On	Off	On	On	On	On	On	On
3	Off	Off	On	On	On	On	On	On
4	On	On	Off	On	On	On	On	On
251	Off	Off	On	Off	Off	Off	Off	Off
252	On	On	Off	Off	Off	Off	Off	Off
253	Off	On	Off	Off	Off	Off	Off	Off
254	On	Off	Off	Off	Off	Off	Off	Off
255	Off	Off	Off	Off	Off	Off	Off	Off
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 8=128, 7=64, 6=32, 5=16, 4=8, 3=4, 2=2, 1=1. Turn Off the switches and add the values of the Off switches to obtain the correct node address. (On=0, Off=1)

TOPOLOGY
Topology	J6
Star	Closed
Linear Bus	Open