CNET TECHNOLOGY, INC.
CN190SBT
|
NIC Type |
ARCnet |
|
Transfer Rate |
2.5Mbps |
|
Data Bus |
16-bit ISA |
|
Topology |
Star Linear Bus |
|
Wiring Type |
Unshielded twisted pair 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 |
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 1=1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. Turn off the switches and add the values of the off switches to obtain the correct node address. (On=0, off=1) |
||||||||
|
RESPONSE/RECONFIGURATION TIMEOUTS |
|||
|
Response Time |
Reconfiguration Time |
JP1 |
JP2 |
|
74.7µs |
840ms |
Open |
Open |
|
283.4µs |
1680ms |
Closed |
Open |
|
561.8µs |
1680ms |
Open |
Closed |
|
1118.6µs |
1680ms |
Closed |
Closed |
|
Note: All NICs on the network segment must have this option set the same. |
|||
|
INTERRUPT REQUEST |
||||||||||||
|
IRQ |
JP3 |
JP4 |
JP5 |
JP6 |
JP7 |
JP9 |
JP10 |
JP11 |
JP12 |
JP14 |
JP15 |
|
|
» |
3 |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
4 |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
5 |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
6 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
7 |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
9 |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
|
|
10 |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
|
|
11 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
|
|
12 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
|
|
14 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
|
|
15 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
|
CABLE TYPE |
||
|
Type |
JP16 & JP17 |
|
|
» |
Unshielded twisted pair |
Pins 1 & 2 closed |
|
|
RG-62A/U 93ohm coaxial |
Pins 2 & 3 closed |
|
ONBOARD TERMINATOR |
|||
|
Setting |
JP18 |
||
|
» |
Disabled |
Pins 2 & 3 closed |
|
|
|
Enabled |
Pins 1 & 2 closed |
|
|
|
Notes:If the card is on either end of a linear bus network segment, the onboard terminator may be used instead of using an external terminator. |
||
|
I/O BASE ADDRESS |
||||
|
Address |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
|
200h |
On |
On |
On |
On |
|
220h |
On |
On |
On |
Off |
|
240h |
On |
On |
Off |
On |
|
260h |
On |
On |
Off |
Off |
|
280h |
On |
Off |
On |
On |
|
2A0h |
On |
Off |
On |
Off |
|
2C0h |
On |
Off |
Off |
On |
|
2E0h |
On |
Off |
Off |
Off |
|
300h |
Off |
On |
On |
On |
|
320h |
Off |
On |
On |
Off |
|
340h |
Off |
On |
Off |
On |
|
360h |
Off |
On |
Off |
Off |
|
380h |
Off |
Off |
On |
On |
|
3A0h |
Off |
Off |
On |
Off |
|
3C0h |
Off |
Off |
Off |
On |
|
3E0h |
Off |
Off |
Off |
Off |
|
BASE MEMORY ADDRESS & BOOT ROM ADDRESS |
||||||
|
Base Address |
Boot ROM Address |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
|
|
|
C0000h |
C4000h |
Off |
On |
On |
On |
|
|
C8000h |
CC000h |
Off |
On |
On |
Off |
|
» |
D0000h |
D4000h |
Off |
On |
Off |
On |
|
|
D8000h |
DC000h |
Off |
On |
Off |
Off |
|
|
E0000h |
E4000h |
Off |
Off |
On |
On |
|
DIAGNOSTIC LED(S) |
||
|
LED |
Status |
Condition |
|
LED1 |
On |
Data is being transmitted or received |
|
LED1 |
Off |
Data is not being transmitted or received |
|
FACTORY CONFIGURED SETTINGS |
|
|
Jumper |
Setting |
|
JP1 |
Open |
|
JP2 |
Open |
