THOMAS-CONRAD CORPORATION
TC6142
|
NIC Type |
ARCnet |
|
Transfer Rate |
2.5Mbps |
|
Data Bus |
8-bit ISA |
|
Topology |
Star Linear Bus |
|
Wiring Type |
RG62/U 93ohm coaxial |
|
Boot ROM |
Available |
|
NODE ADDRESS |
||||||||
|
Node |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
|
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) |
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|
INTERRUPT REQUEST |
||||||
|
IRQ |
JP1 |
JP2 |
JP3 |
JP4 |
JP5 |
|
|
» |
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 |
|
CABLE LENGTH AND RESPONSE/RECONFIGURATION TIMEOUTS |
|||||
|
Cable Length |
Response Time |
Reconfiguration |
JP6 |
JP7 |
|
|
» |
< 20,000 feet |
74.7µs |
840ms |
Open |
Open |
|
|
> 20,000 feet |
283.4µs |
1680ms |
Closed |
Open |
|
|
> 20,000 feet |
561.8µs |
1680ms |
Open |
Closed |
|
|
> 20,000 feet |
1118.6µs |
1680ms |
Closed |
Closed |
|
Note: All NICs on the network must have this option set the same. |
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|
BASE MEMORY ADDRESS |
|||||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
|
|
» |
D000h |
Off |
Off |
On |
Off |
On |
On |
|
|
C000h |
Off |
Off |
On |
On |
On |
On |
|
|
C400h |
Off |
Off |
On |
On |
On |
Off |
|
|
C800h |
Off |
Off |
On |
On |
Off |
On |
|
|
CC00h |
Off |
Off |
On |
On |
Off |
Off |
|
|
D400h |
Off |
Off |
On |
Off |
On |
Off |
|
|
D800h |
Off |
Off |
On |
Off |
Off |
On |
|
|
DC00h |
Off |
Off |
On |
Off |
Off |
Off |
|
COMPATIBILITY MODE |
||
|
Mode |
SW1/8 |
|
|
» |
Enhanced mode |
On |
|
|
Compatible mode |
Off |
|
Note: Enhanced mode optimizes performance and minimizes conflicts of your hardware, by using a Thomas-Conrad ARCNET driver. It is also not necessary to set the I/O address. In most existing ARCNET drivers. |
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|
I/O BASE ADDRESS |
|||||||
|
Address |
SW3/3 |
SW3/4 |
SW3/5 |
SW3/6 |
SW3/7 |
SW3/8 |
|
|
» |
2E0h |
Off |
On |
Off |
Off |
Off |
On |
|
|
2F0h |
Off |
On |
Off |
Off |
Off |
Off |
|
|
300h |
Off |
Off |
On |
On |
On |
On |
|
|
310h |
Off |
Off |
On |
On |
On |
Off |
|
|
320h |
Off |
Off |
On |
On |
Off |
On |
|
|
330h |
Off |
Off |
On |
On |
Off |
Off |
|
|
340h |
Off |
Off |
On |
Off |
On |
On |
|
|
350h |
Off |
Off |
On |
Off |
On |
Off |
|
|
360h |
Off |
Off |
On |
Off |
Off |
On |
|
|
370h |
Off |
Off |
On |
Off |
Off |
Off |
|
|
380h |
Off |
Off |
Off |
On |
On |
On |
|
|
390h |
Off |
Off |
Off |
On |
On |
Off |
|
|
3A0h |
Off |
Off |
Off |
On |
Off |
On |
|
|
3B0h |
Off |
Off |
Off |
On |
Off |
Off |
|
|
3C0h |
Off |
Off |
Off |
Off |
On |
On |
|
|
3D0h |
Off |
Off |
Off |
Off |
On |
Off |
|
|
3E0h |
Off |
Off |
Off |
Off |
Off |
On |
|
|
3F0h |
Off |
Off |
Off |
Off |
Off |
Off |
|
FACTORY CONFIGURED SETTINGS - DO NOT ALTER |
|
|
Switch |
Setting |
|
SW1/7 |
Unused |
|
SW3/1 |
Unused |
|
SW3/2 |
Unused |
