TIARA COMPUTER SYSTEMS, INC.
LanCard/A * AT
|
NIC Type |
ARCnet |
|
Transfer Rate |
2.5Mbps |
|
Data Bus |
16-bit ISA |
|
Topology |
Star |
|
Wiring Type |
RG-62A/U 93ohm coaxial |
|
Boot ROM |
Available |
|
NODE ADDRESS |
||||||||
|
Node |
SW4/1 |
SW4/2 |
SW4/3 |
SW4/4 |
SW4/5 |
SW4/6 |
SW4/7 |
SW4/8 |
|
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 8 is the Least Significant Bit and switch 1 is the Most Significant Bit. The switches have the following decimal values: switch 8=1, 7=2, 6=4, 5=8, 4=16, 3=32, 2=64, 1=128. 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 |
JP1 |
JP2 |
JP3 |
JP4 |
JP5 |
JP6 |
JP7 |
JP8 |
JP9 |
JP10 |
JP11 |
|
|
|
2 |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
|
|
3 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
|
|
4 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
|
|
5 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
|
|
6 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
|
|
7 |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
|
|
10 |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
11 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
12 |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
14 |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
15 |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
DIAGNOSTIC CONFIGURATION |
||
|
Setting |
JP12 |
|
|
|
Enhanced diagnostics disabled |
Pins 1 & 2 Closed |
|
|
Enhanced diagnostics enabled |
Pins 2 & 3 Closed |
|
Note:The enhanced diagnostics are compatible only with the driver that was shipped with this card. When the diagnostics are enabled, features such as an ARCnet duplicate Node ID search are activated. |
||
|
BOOT ROM |
||
|
Setting |
SW1/1 |
|
|
|
Disabled |
Off |
|
|
Enabled |
On |
|
RIM BUFFER ADDRESS CONFIGURATION |
|||||||
|
Buffer Address |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
|
xC0OOh |
Off |
On |
On |
Off |
Off |
Off |
Off |
|
xC4OOh |
Off |
On |
On |
Off |
Off |
Off |
On |
|
xCCOOh |
Off |
On |
On |
Off |
Off |
On |
On |
|
xD0OOh |
Off |
On |
On |
Off |
On |
Off |
Off |
|
xD4OOh |
Off |
On |
On |
Off |
On |
Off |
On |
|
xD8OOh |
Off |
On |
On |
Off |
On |
On |
Off |
|
xDCOOh |
Off |
On |
On |
Off |
On |
On |
On |
|
xE000h |
Off |
On |
On |
On |
Off |
Off |
Off |
|
Notes: Place one digit from the next table in front of the address given above to get the complete Address. |
|||||||
|
EXTENDED TIMEOUT CONFIGURATION |
|||||
|
Distance |
Response Time |
Reconfiguration |
SW2/1 |
SW2/2 |
|
|
|
4.8 miles |
74.7s |
840ms |
On |
On |
|
|
21.0 miles |
283.4s |
1680ms |
On |
Off |
|
|
42.5 miles |
561.8s |
1680ms |
Off |
On |
|
|
85.6 miles |
1118.6s |
1680ms |
Off |
Off |
|
Note: The distance given is the maximum distance between the two furthest nodes on the network. |
|||||
|
I/O BASE ADDRESS |
|||||||
|
Address |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
|
|
|
2E0h |
On |
Off |
On |
On |
On |
Off |
|
|
260h |
On |
Off |
Off |
On |
On |
Off |
|
|
290h |
On |
Off |
On |
Off |
Off |
On |
|
|
2B0h |
On |
Off |
On |
Off |
On |
On |
|
|
300h |
On |
On |
Off |
Off |
Off |
Off |
|
|
350h |
On |
On |
Off |
On |
Off |
On |
|
|
380h |
On |
On |
On |
Off |
Off |
Off |
|
|
3E0h |
On |
On |
On |
On |
On |
Off |
|
RIM BUFFER EXTENDED ADDRESS CONFIGURATION |
||||||||
|
Segment |
SW3/1 |
SW3/2 |
SW3/3 |
SW3/5 |
SW3/6 |
SW3/7 |
SW3/8 |
|
|
|
0xxxx |
On |
Off |
Off |
Off |
Off |
Off |
Off |
|
|
1xxxx |
On |
Off |
Off |
Off |
Off |
Off |
On |
|
|
2xxxx |
On |
Off |
Off |
Off |
Off |
On |
Off |
|
|
3xxxx |
On |
Off |
Off |
Off |
Off |
On |
On |
|
|
4xxxx |
On |
Off |
Off |
Off |
On |
Off |
Off |
|
|
5xxxx |
On |
Off |
Off |
Off |
On |
Off |
On |
|
|
6xxxx |
On |
Off |
Off |
Off |
On |
On |
Off |
|
|
7xxxx |
On |
Off |
Off |
Off |
On |
On |
On |
|
|
8xxxx |
On |
Off |
Off |
On |
Off |
Off |
Off |
|
|
9xxxx |
On |
Off |
Off |
On |
Off |
Off |
On |
|
|
Axxxx |
On |
Off |
Off |
On |
Off |
On |
Off |
|
|
Bxxxx |
On |
Off |
Off |
On |
Off |
On |
On |
|
|
Cxxxx |
On |
Off |
Off |
On |
On |
Off |
Off |
|
|
Dxxxx |
On |
Off |
Off |
On |
On |
Off |
On |
|
|
Exxxx |
On |
Off |
Off |
On |
On |
On |
Off |
|
|
Fxxxx |
On |
Off |
Off |
On |
On |
On |
On |
|
Note: Place the digit found in this table in front of the address given on the previous table to get the complete RIM buffer address. A setting other than zero in this table will place the buffer into extended memory at the aforementioned address. For example, a setting of 2 will place the buffer into the 2nd megabyte of extended memory, a setting of C will place the buffer into the 12th megabyte of extended memory. Starting from the base address. make sure that the next 16 to 128KB of memory (see above notes) are not used. Important: The software drivers supplied with this card do not support extended memory. |
||||||||
|
DIAGNOSTIC LED(S) |
|||
|
LED |
Color |
Status |
Condition |
|
L1 |
Red |
On |
Data is being received |
|
L1 |
Red |
Off |
Data is not being received |
|
L1 |
Red |
Blinking |
Card is reconfiguring |
|
L2 |
Green |
On |
Data is being transmitted |
|
L2 |
Green |
Off |
Data is not being transmitted |
|
L2 |
Green |
Blinking |
Card is reconfiguring |