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# NATIONAL SEMICONDUCTOR CORPORATION
ETHERNODE 16AT-T
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus 8/16-bit ISA
Topology Linear Bus
Wiring Type Unshielded twisted pair
AUI transceiver via DB-15 port
Boot ROM Available
IMG IMG 1
+------------------------------------------------------------+
| CARD IDENTIFICATION NUMBER |
|------------------------------------------------------------|
| Number | JP1A | JP1B | JP1C | JP1D |
|--------------+-----------+-----------+----------+----------|
| » | 1 | Open | Open | Open | Closed |
|-------+------+-----------+-----------+----------+----------|
| | 2 | Open | Open | Closed | Open |
|-------+------+-----------+-----------+----------+----------|
| | 3 | Open | Closed | Open | Open |
|-------+------+-----------+-----------+----------+----------|
| | 4 | Closed | Open | Open | Open |
|------------------------------------------------------------|
| Note: Up to four NICs can be installed in a single system. |
| If more than one card is installed, each card must have a |
| different Identification number. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINK INTEGRITY TEST |
|------------------------------------------------------------|
| Setting | W3 |
|--------------------------------+---------------------------|
| » | Enabled | Pins 2 & 3 closed |
|------------+-------------------+---------------------------|
| | Disabled | Pins 1 & 2 closed |
|------------------------------------------------------------|
| Note: The link integrity test is only valid when the cable |
| type is unshielded twisted pair. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NETWORK SEGMENT LENGTH NOTES |
|------------------------------------------------------------|
| The segment length is automatically detected and |
| configured on this card, but may not be on other cards on |
| the network segment. All NICs on the network segment must |
| have this option set the same. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA BUS SPEED NOTES |
|------------------------------------------------------------|
| On some systems the data bus timing is not truly IBM PC/AT |
| compatible. If the card is not initializing, Changing the |
| data bus speed from 'Normal' to 'Fast' may allow the card |
| to operate properly. To change the data bus speed you must |
| use the ICRCNFIG utility that comes with the card. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BOOT ROM/CHECKPOINT SECURITY CHIP NOTES |
|------------------------------------------------------------|
| The boot ROM socket accepts an 8K boot ROM or a CheckPoint |
| security chip. The CheckPoint security chip supplies virus |
| protection, access control, and access logging functions. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| Color | Status | Condition |
|-------+--------+-------------------------------------------|
| Green | On | Twisted pair network connection is good |
|-------+--------+-------------------------------------------|
| Green | Off | Twisted pair network connection is broken |
|-------+--------+-------------------------------------------|
| Red | On | Data is being transmitted or received |
|-------+--------+-------------------------------------------|
| Red | Off | Data is not being transmitted or received |
+------------------------------------------------------------+