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# THOMAS-CONRAD CORPORATION
TC6245
NIC Type ARCnet
Transfer Rate 2.5Mbps
Data Bus 16-bit ISA
Topology Star
Wiring Type RG62A/U 93ohm coaxial
Boot ROM Available
(IMG) IMG 1
+------------------------------------------------------------+
| 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) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESPONSE AND RECONFIGURATION TIMEOUT ||
|-----------------------------------------------------------||
| Mode | JP12 | JP13 ||
|---------------------------------------+---------+---------||
| » | Network cable distance < 20,000 | Open | Open ||
| | feet | | ||
|---+-----------------------------------+---------+---------||
| | Network cable distance > 20,000 | Closed | Closed ||
| | feet | | ||
|---+--------------------------------------------------------|
| | Note :All NICs on the network must have these two |
| | jumpers set the same. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE MEMORY ADDRESS |
|------------------------------------------------------------|
| Memory | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 |
| Address | | | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| » | 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 |
+------------------------------------------------------------+
+----------------------------------------------------------------------------------+
| INTERRUPT REQUEST |
|----------------------------------------------------------------------------------|
| IRQ | JP1 | JP2 | JP3 | JP4 | JP5 | JP20 | JP21 | JP22 | JP23 | JP24 | JP25 |
|-----+------+------+------+------+------+------+------+------+------+------+------|
|»|2/9| Open | Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| | 3 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| | 4 | Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| | 5 | Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| | 6 | Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| | 7 | Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed| 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 |
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| |13 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| |14 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open | Open |
|-+---+------+------+------+------+------+------+------+------+------+------+------|
| |15 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open |
+----------------------------------------------------------------------------------+
+------------------------------------------------------------+
| WAIT STATE |
|------------------------------------------------------------|
| Setting | SW1/7 |
|-----------------------------------+------------------------|
| » | Zero wait states disabled | On |
|---+-------------------------------+------------------------|
| | Zero wait states enabled | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BLOCK DECODE SIZE |
|------------------------------------------------------------|
| Size | JP7 |
|----------------------------------------------+-------------|
| » | 16K memory block decode | Off |
|----------+-----------------------------------+-------------|
| | 128K memory block decode | On |
|------------------------------------------------------------|
| Note:A 16-bit VGA adapter typically decodes base memory |
| in 128K blocks. If you are installing the NIC in a |
| system with such a card, you may need to set the NIC |
| block decode size to 128K. If you set the block decode |
| size to 128K then all other adapters in the system must |
| also utilize 128K decode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| I/O | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-----+-------+----------+-----------------------------------|
| 1 | Red | On | Data is being transmitted or |
| | | | receiving |
|-----+-------+----------+-----------------------------------|
| 1 | Green | On | Card is not configured correctly |
|-----+-------+----------+-----------------------------------|
| 2 | Green | Blinking | Card is configured correctly and |
| | | | is connected to network |
|-----+-------+----------+-----------------------------------|
| 2 | N/A | Off | Card is defective or not |
| | | | connected to network |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS NOTES |
|------------------------------------------------------------|
| Note:Not all components are as shown on later card |
| revisions. |
+------------------------------------------------------------+