3COM CORPORATION
ETHERLINK/MC TP (3C523-TP)
|
NIC Type |
Ethernet |
|
Network Transfer Rate |
10Mbps |
|
Data Bus |
MCA |
|
Topology |
Linear Bus/Star |
|
Wire Type |
Unshielded twisted pair AUI transceiver via DB-15 port |
|
Boot ROM |
Available |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
Unshielded twisted pair |
CN1 |
AUI transceiver via DB-15 port |
CN2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
Transmit equalization |
J5 |
Pins 1 & 2 closed | |
|
Receive equalization |
J5 |
Pins 2 & 3 closed | |
|
Receive threshhold normal |
J6 |
Pins 1 & 2 closed | |
|
Receive threshhold low |
J6 |
Pins 2 & 3 closed | |
|
SQE heartbeat enabled |
J7 |
Pins 1 & 2 closed | |
|
SQE heartbeat disabled |
J7 |
Pins 2 & 3 closed | |
|
Transmit level normal |
J8 |
Pins 1 & 2 closed | |
|
Transmit level attenuated |
J8 |
Pins 2 & 3 closed | |
|
DC signal disabled |
J9 |
Pins 2 & 3 closed | |
|
DC signal enabled |
J9 |
Pins 1 & 2 closed | |
|
LINE IMPEDANCE | |||||
|
Setting |
J1 |
J2 |
J3 |
J4 | |
|
75 ohms |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
|
100 ohms |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |
|
150 ohms |
Pins 3 & 4 closed |
Pins 3 & 4 closed |
Pins 3 & 4 closed |
Pins 3 & 4 closed | |