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# TIARA COMPUTER SYSTEMS, INC.
ARCNET LanCard AT
NIC Type ARCnet
Transfer Rate 2.5Mbps
Data Bus 16-bit ISA
Topology Star
Linear Bus
Wiring Type Shielded twisted pair
Unshielded twisted pair
RG-58A/U 50ohm coaxial
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 | 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) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | JP7 & JP8 |
|--------------------------------------+---------------------|
| » | RG-58A/U 50ohm coaxial | Pins 1 & 2 closed |
|---+----------------------------------+---------------------|
| | Shielded/Unshielded twisted pair | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TOPOLOGY CONFIGURATION |
|------------------------------------------------------------|
| Topology | JP9 |
|----------------------------------+-------------------------|
| » | Linear Bus | Open |
|---+------------------------------+-------------------------|
| | Star | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RIM BUFFER ADDRESS/BOOT ROM ADDRESS CONFIGURATION |
|------------------------------------------------------------|
| Buffer |Boot ROM| JPA | JPB | JPC | JPD | JPE |
|---------+--------+--------+--------+-------+-------+-------|
| | CCOOh | CE00h | Closed | Closed |Closed | Open |Closed |
|-+-------+--------+--------+--------+-------+-------+-------|
|»| D000h | D200h | Closed | Closed | Open | Open |Closed |
|-+-------+--------+--------+--------+-------+-------+-------|
| | D400h | D600h | Closed | Closed |Closed |Closed | Open |
|-+-------+--------+--------+--------+-------+-------+-------|
| | D800h | DA00h | Closed | Closed | Open |Closed | Open |
|-+-------+--------+--------+--------+-------+-------+-------|
| | DC00h | DE00h | Closed | Closed |Closed | Open | Open |
|-+-------+--------+--------+--------+-------+-------+-------|
| | E000h | E200h | Closed | Closed | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| Address | JPF | JPG | JPH |
|----------------+--------------+--------------+-------------|
| » | 2E0h | Closed | Open | Closed |
|---+------------+--------------+--------------+-------------|
| | 260h | Closed | Closed | Closed |
|---+------------+--------------+--------------+-------------|
| | 290h | Open | Closed | Closed |
|---+------------+--------------+--------------+-------------|
| | 2F0h | Open | Open | Closed |
|---+------------+--------------+--------------+-------------|
| | 300h | Closed | Closed | Open |
|---+------------+--------------+--------------+-------------|
| | 350h | Open | Closed | Open |
|---+------------+--------------+--------------+-------------|
| | 380h | Closed | Open | Open |
|---+------------+--------------+--------------+-------------|
| | 3E0h | Open | Open | Open |
+------------------------------------------------------------+
+--------------------------------------------------------------------+
| INTERRUPT REQUEST |
|--------------------------------------------------------------------|
| IRQ | JPI | JPJ | JPK | JPL | JPM | JPN | JPO | JPP | JPQ |
|-----+------+------+------+------+------+------+------+------+------|
|»|2/9| Open | Open | Open | Open |Closed| Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| | 3 | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| | 4 | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| | 5 | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
|-+---+------+------+------+------+------+------+------+------+------|
| | 7 | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
|-+---+------+------+------+------+------+------+------+------+------|
| |10 | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| |11 | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| |12 | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------|
| |15 |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
+--------------------------------------------------------------------+
+------------------------------------------------------------+
| I/O OPTION CONFIGURATION |
|------------------------------------------------------------|
| I/O CHRDY | Zero Wait | JPR | JPS |
| | State | | |
|----------------+---------------+-------------+-------------|
| Disabled | Disabled | Open | Open |
|----------------+---------------+-------------+-------------|
| Disabled | Enabled | Closed | Open |
|----------------+---------------+-------------+-------------|
| Enabled | Disabled | Open | Closed |
|------------------------------------------------------------|
| Note:Zero wait state operation and I/O CHRDY signal cannot |
| be enabled at the same time. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+