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# 3COM CORPORATION
ETHERLINK/NB (3C543)
NIC Type Ethernet
Maximum Onboard Memory 64KB DRAM
Network Transfer Rate 10Mbps
Data Bus NuBus
Topology Linear Bus
Wire Type DIX transceiver via DB-15 port
RG-58A/U 50ohm coaxial
Boot ROM Not available
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|---------------------+-------+----------------------+-------|
| DIX transceiver via | CN1 | RG-58A/U 50ohm | CN2 |
| DB-15 port | | coaxial connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CABLE TYPE |
|------------------------------------------------------------|
| Setting | P4 |
|--------------------------------+---------------------------|
| RG-58A/U 50ohm coaxial | Pins 2 & 3 closed |
|--------------------------------+---------------------------|
| DIX transceiver via DB-15 port | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| The LED indicates which cable type is selected. Its |
| exact indications are unidentified. |
+------------------------------------------------------------+