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# TIARA COMPUTER SYSTEMS, INC.
LanCard A-286 FO
NIC Type ARCnet
Transfer Rate 2.5Mbps
Data Bus 8-bit ISA
Topology Star
Wiring Type 200µs
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| NODE ADDRESS |
|------------------------------------------------------------|
|Node |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |SW1/8|
|-----+------+------+------+------+------+------+------+-----|
| 0 | - | - | - | - | - | - | - | - |
|-----+------+------+------+------+------+------+------+-----|
| 1 | On | On | On | On | On | On | On | Off |
|-----+------+------+------+------+------+------+------+-----|
| 2 | On | On | On | On | On | On | Off | On |
|-----+------+------+------+------+------+------+------+-----|
| 3 | On | On | On | On | On | On | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 4 | On | On | On | On | On | Off | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 251 | Off | Off | Off | Off | Off | On | Off | Off |
|-----+------+------+------+------+------+------+------+-----|
| 252 | Off | Off | Off | Off | Off | Off | On | On |
|-----+------+------+------+------+------+------+------+-----|
| 253 | Off | Off | Off | Off | Off | Off | On | Off |
|-----+------+------+------+------+------+------+------+-----|
| 254 | Off | Off | Off | Off | Off | Off | Off | On |
|-----+------+------+------+------+------+------+------+-----|
| 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 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 off the switches and add the|
| values of the off switches to obtain the correct node |
| address. (On=0, off=1) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Status | Condition |
|---------+--------------+-----------------------------------|
| L1 | Off | Data is not being transmitted |
|---------+--------------+-----------------------------------|
| L1 | Blinking | Card is reconfiguring |
|---------+--------------+-----------------------------------|
| L1 | On | Card is operating normally on the |
| | | network |
|------------------------------------------------------------|
| Note:If either of the first two conditions persists, a |
| hardware failure exists. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| Address | JP6 | JP7 | JP8 | JP9 | JP10 | JP11 |
|---------+------+--------+--------+--------+--------+-------|
|» | 2E0h | Open | Closed | Open | Open | Open |Closed |
|--+------+------+--------+--------+--------+--------+-------|
| | 280h | Open | Closed | Open | Closed | Closed |Closed |
|--+------+------+--------+--------+--------+--------+-------|
| | 2F0h | Open | Closed | Open | Open | Open | Open |
|--+------+------+--------+--------+--------+--------+-------|
| | 300h | Open | Open | Closed | Closed | Closed |Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM ADDRESS |
|------------------------------------------------------------|
| Address | JP12 | JP13 | JP14 | JP15 | JP16 |
|-------------+--------+-------+---------+---------+---------|
| » | D0OOH | Open | Open | Closed | Open | Closed |
|---+---------+--------+-------+---------+---------+---------|
| | C0OOH | Open | Open | Closed | Closed | Closed |
|---+---------+--------+-------+---------+---------+---------|
| | C8OOH | Open | Open | Closed | Closed | Open |
|---+---------+--------+-------+---------+---------+---------|
| | D8OOH | Open | Open | Closed | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXTENDED TIMEOUT CONFIGURATION |
|------------------------------------------------------------|
| Distance | Response | Reconfiguration | JP17 | JP18 |
| | Time | | | |
|-----------+----------+-------------------+--------+--------|
| » | 4.8 | 74.7µs | 840ms | Open | Open |
| | miles | | | | |
|---+-------+----------+-------------------+--------+--------|
| | 21.0 | 263.4µs | 1680ms | Closed | Open |
| | miles | | | | |
|---+-------+----------+-------------------+--------+--------|
| | 42.5 | 561.8µs | 1680ms | Open | Closed |
| | miles | | | | |
|---+-------+----------+-------------------+--------+--------|
| | 85.6 | 1118.6µs | 1680ms | Closed | Closed |
| | miles | | | | |
|------------------------------------------------------------|
| Note:The distance given is the maximum distance between |
| the two furthest nodes on the network. |
+------------------------------------------------------------+