COMPEX, INC.
ANET-4 (VER. 1.0)
|
NIC Type |
ArcNet |
|
Chip Set |
NCR 90C26 |
|
Data Bus |
8-bit ISA |
|
Network Transfer Rate |
2.5Mbps x 4 |
|
Topology |
Star |
|
Wiring Type |
RG-62A/U 93ohm coaxial |
|
Boot ROM |
Available |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
RG-62A/U 93ohm coaxial connector |
CN1 |
RG-62A/U 93ohm coaxial connector |
CN4 |
|
RG-62A/U 93ohm coaxial connector |
CN2 |
Daisy-chain connector |
J1 |
|
RG-62A/U 93ohm coaxial connector |
CN3 | ||
|
EXTENDED RANGE CONFIGURATION | |||
|
Response Time |
Recon Time |
JP1 |
JP2 |
|
75.7 uS |
840 mS |
Open |
Open |
|
283.4 uS |
1.68 S |
Closed |
Open |
|
561.8 uS |
1.68 S |
Open |
Closed |
|
1.1186 mS |
1.68 S |
Closed |
Closed |
|
Note:This setting should only be changed when the length of the ArcNet segments exceed 6000 meters. | |||
|
NODE ADDRESS | ||||||||
|
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
|
1 |
On |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
|
2 |
Off |
On |
Off |
Off |
Off |
Off |
Off |
Off |
|
3 |
On |
On |
Off |
Off |
Off |
Off |
Off |
Off |
|
4 |
Off |
Off |
On |
Off |
Off |
Off |
Off |
Off |
|
5 |
On |
Off |
On |
Off |
Off |
Off |
Off |
Off |
|
250 |
Off |
On |
Off |
On |
On |
On |
On |
On |
|
251 |
On |
On |
Off |
On |
On |
On |
On |
On |
|
252 |
Off |
Off |
On |
On |
On |
On |
On |
On |
|
253 |
On |
Off |
On |
On |
On |
On |
On |
On |
|
254 |
Off |
On |
On |
On |
On |
On |
On |
On |
|
Note: A total of 253 node address settings are available. The switches are a binary representation of the decimal node addresses. SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. The switches have the following decimal values: SW1/8=128, SW1/7=64, SW1/6=32, SW1/5=16, SW1/4=8, SW1/3=4, SW1/2=2, SW1/1=1. Turn off the switches and add the values of the switches that are off to obtain the correct node address. (Off=1, On=0)Addresses 0 and 255 are reserved and should not be used. | ||||||||
|
BASE I/O ADDRESS | |||||||
|
Setting |
JP4/A |
JP4/B |
JP4/C |
JP4/D |
JP4/E |
JP4/F | |
|
000h |
Open |
Open |
Open |
Open |
Open |
Open | |
|
010h |
Closed |
Open |
Open |
Open |
Open |
Open | |
|
020h |
Open |
Closed |
Open |
Open |
Open |
Open | |
|
030h |
Closed |
Closed |
Open |
Open |
Open |
Open | |
|
040h |
Open |
Open |
Closed |
Open |
Open |
Open | |
|
3B0h |
Closed |
Closed |
Open |
Closed |
Closed |
Closed | |
|
3C0h |
Open |
Open |
Closed |
Closed |
Closed |
Closed | |
|
3D0h |
Closed |
Open |
Closed |
Closed |
Closed |
Closed | |
| » |
3E0h |
Open |
Closed |
Closed |
Closed |
Closed |
Closed |
|
3F0h |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed | |
|
Note: A total of 64 base address settings are available. The jumpers are a binary representation of the decimal memory addresses. JP4/A is the Least Significant Bit and jumper JP4/F is the Most Significant Bit. The jumpers have the following decimal values: JP4/F=512, JP4/E=256, JP4/D=128, JP4/C=64, JP4/B=32, JP4/A=16. Close the jumpers and add the values of the jumpers that are closed to obtain the correct memory address. (Closed=1, Open=0) | |||||||
|
SHARED RAM ADDRESS | ||||||
|
Setting |
JP5/A |
JP5/B |
JP5/C |
JP5/D |
JP5/E | |
|
00000h |
Open |
Open |
Open |
Open |
Open | |
|
08000h |
Closed |
Open |
Open |
Open |
Open | |
|
10000h |
Open |
Closed |
Open |
Open |
Open | |
|
18000h |
Closed |
Closed |
Open |
Open |
Open | |
|
20000h |
Open |
Open |
Closed |
Open |
Open | |
| » |
D0000h |
Closed |
Open |
Closed |
Open |
Open |
|
D8000h |
Closed |
Closed |
Open |
Closed |
Closed | |
|
E0000h |
Open |
Open |
Closed |
Closed |
Closed | |
|
E8000h |
Closed |
Open |
Closed |
Closed |
Closed | |
|
F0000h |
Open |
Closed |
Closed |
Closed |
Closed | |
|
F8000h |
Closed |
Closed |
Closed |
Closed |
Closed | |
|
Note: A total of 32 base address settings are available. The jumpers are a binary representation of the decimal memory addresses. JP5/A is the Least Significant Bit and jumper JP5/E is the Most Significant Bit. The jumpers have the following decimal values: JP5/E=524288, JP5/D=262144, JP5/C=131072, JP5/B=65536, JP5/A=32768. Close the jumpers and add the values of the jumpers that are closed to obtain the correct memory address. (Closed=1, Open=0) | ||||||
|
INTERRUPT | |||||
|
Setting |
JP3/A |
JP3/B |
JP3/C |
JP3/D |
JP3/E |
|
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 |
|
MISCELLANEOUS TECHNICAL NOTE |
|
The daisy-chain connector may be used to connect up to three extender cards for a total of 12 ports. For additional information see document N1769. |
