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# 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
(IMG) IMG 1
+------------------------------------------------------------+
| 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 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |SW1/8 |
| Address | | | | | | | |
|-----------+------+------+------+------+------+------+------|
| 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 | Reconfiguration | SW2/1 | SW2/2 |
| | Time | | | |
|-------------+----------+-------------------+-------+-------|
| » | 4.8 | 74.7µs | 840ms | On | On |
| | miles | | | | |
|----+--------+----------+-------------------+-------+-------|
| | 21.0 | 283.4µs | 1680ms | On | Off |
| | miles | | | | |
|----+--------+----------+-------------------+-------+-------|
| | 42.5 | 561.8µs | 1680ms | Off | On |
| | miles | | | | |
|----+--------+----------+-------------------+-------+-------|
| | 85.6 | 1118.6µs | 1680ms | Off | Off |
| | miles | | | | |
|------------------------------------------------------------|
| 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 |
+------------------------------------------------------------+