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# BLACK BOX CORPORATION
CONNEX 105, LE1021C
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus 16-bit ISA
Topology Linear Bus
Wiring Type RG-58A/U 50ohm coaxial
AUI transceiver via DB-15 port
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| I/O BASE ADDRESS & BOOT ROM ADDRESS |
|------------------------------------------------------------|
| I/O Address | Boot ROM Address | W1 | W3 |
|---------------+------------------+------------+------------|
| 300h | C8000-C8FFFh | Closed | Closed |
|---------------+------------------+------------+------------|
| 320h | CC000-CFFFFh | Closed | Open |
|---------------+------------------+------------+------------|
| 340h | D0000-D3FFFh | Open | Closed |
|---------------+------------------+------------+------------|
| 360h | D4000-D7FFFh | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM |
|------------------------------------------------------------|
| Setting | W2 |
|---------------------------------+--------------------------|
| » | Disabled | Open |
|---+-----------------------------+--------------------------|
| | Enabled | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| WAIT STATE |
|------------------------------------------------------------|
| Setting | W4 |
|-----------------------------------+------------------------|
| » | 0 wait states | Open |
|---+-------------------------------+------------------------|
| | 1 wait state | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Type | W5 & W13 | W6 - W11 |
|----------------------------------+------------+------------|
| » | RG-58A/U 50ohm coaxial | Pins 2 & 3 | Pins 2 & 3 |
| | | Closed | Closed |
|---+------------------------------+------------+------------|
| | AUI transceiver via DB-15 | Pins 1 & 2 | Pins 1 & 2 |
| | port | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIGNAL QUALITY ERROR (SQE) TEST |
|------------------------------------------------------------|
| Setting | W12 |
|-------------------------------+----------------------------|
| » | Enabled | Pins 2 & 3 Closed |
|-----------+-------------------+----------------------------|
| | Disabled | Pins 1 & 2 Closed |
|------------------------------------------------------------|
| Note:Signal Quality Error (SQE) is a test of the collision |
| circuitry and path. |
+------------------------------------------------------------+
+---------------------------------------------------------------+
| DMA CHANNELS |
|---------------------------------------------------------------|
|Channel| W14 | W15 | W16 | W17 | W18 | W19 | W23 | W24 |
|-------+------+------+------+------+------+------+------+------|
|» |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 | W20 | W21 | W22 | W25 |
|----------------+----------+----------+----------+----------|
| | Disabled | Open | Open | Open | Open |
|---+------------+----------+----------+----------+----------|
| | 2/9 | Open | Open | Open | Closed |
|---+------------+----------+----------+----------+----------|
| » | 3 | Closed | Open | Open | Open |
|---+------------+----------+----------+----------+----------|
| | 4 | Open | Closed | Open | Open |
|---+------------+----------+----------+----------+----------|
| | 5 | Open | Open | Closed | Open |
+------------------------------------------------------------+