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# 3COM CORPORATION
TOKENLINK
NIC Type Token-Ring
Transfer Rate 4Mbps
Data Bus 16-bit ISA
Topology Ring
Wiring Type Unshielded twisted pair
Shielded twisted pair (DB-9 port)
Boot ROM Available
IMG IMG 1
+---------------------------------------------------------------+
| DMA CHANNEL |
|---------------------------------------------------------------|
|Channel| JP1A | JP1B | JP1C | JP1D | JP1E | JP1F | JP1G | JP1H |
|-------+------+------+------+------+------+------+------+------|
|» |DMA3| Open | Open | Open | Open | Open | Open |Closed|Closed|
|--+----+------+------+------+------+------+------+------+------|
| |DMA5| Open | Open | Open | Open |Closed|Closed| Open | Open |
|--+----+------+------+------+------+------+------+------+------|
| |DMA6| Open | Open |Closed|Closed| Open | Open | Open | Open |
|--+----+------+------+------+------+------+------+------+------|
| |DMA7|Closed|Closed| Open | Open | Open | Open | Open | Open |
+---------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | JP2A | JP2B | JP2C | JP2D | JP2E | JP2F |
|------+--------+--------+--------+--------+--------+--------|
|»| 5 | Open | Open | Open | Open | Open | Closed |
|-+----+--------+--------+--------+--------+--------+--------|
| | 10 | Open | Open | Open | Open | Closed | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 11 | Open | Open | Open | Closed | Open | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 12 | Open | Open | Closed | Open | Open | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 14 | Open | Closed | Open | Open | Open | Open |
|-+----+--------+--------+--------+--------+--------+--------|
| | 15 | Closed | Open | Open | Open | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O BASE ADDRESS |
|------------------------------------------------------------|
| Address | JP3A | JP3B | JP3C | JP3D |
|-------------+-----------+-----------+-----------+----------|
| » | 300h | Closed | Open | Open | Open |
|---+---------+-----------+-----------+-----------+----------|
| | 310h | Open | Closed | Open | Open |
|---+---------+-----------+-----------+-----------+----------|
| | 320h | Open | Open | Closed | Open |
|---+---------+-----------+-----------+-----------+----------|
| | 350h | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PRIMARY/ALTERNATE MODE |
|------------------------------------------------------------|
| Setting | JP4A | JP4B | JP4C |
|------------------------+-----------+-----------+-----------|
| » | Single card | Open | Open | Closed |
|-------+----------------+-----------+-----------+-----------|
| | Primary | Closed | Open | Open |
|-------+----------------+-----------+-----------+-----------|
| | Alternate | Open | Closed | Open |
|------------------------------------------------------------|
| Note: If two cards are to be used in a single system, one |
| of the cards must be set to primary and the other one must |
| be set to alternate. If only one card is used this option |
| must be set to single. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM ADDRESS |
|------------------------------------------------------------|
| Address | JP5A | JP5B | JP5C | JP5D |
|----------------+----------+----------+----------+----------|
| » | Disabled | Closed | Open | Open | Open |
|---+------------+----------+----------+----------+----------|
| | C4000h | Open | Closed | Open | Open |
|---+------------+----------+----------+----------+----------|
| | D4000h | Open | Open | Open | Closed |
|---+------------+----------+----------+----------+----------|
| | D6000h | Open | Open | Closed | Open |
+------------------------------------------------------------+