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# 3COM CORPORATION
ETHERLINK 16 TP (3C507-TP)
NIC Type Ethernet
Transfer Rate 10Mbps
Data Bus 16-bit ISA
Topology Star
Wiring Type Unshielded twisted pair
Boot ROM Available
(IMG) IMG 1
+------------------------------------------------------------+
| 10BASE-T STANDARD COMPATIBILITY CONFIGURATION |
|------------------------------------------------------------|
| Setting | Jumper | Setting |
|-------------------------------------+----------+-----------|
| » | DC signal disabled 2 | J1 | Pins 2 & |
| | | | 3 closed |
|---+---------------------------------+----------+-----------|
| | DC signal enabled (On receive | J1 | Pins 1 & |
| | wires) 3 | | 2 closed |
|---+---------------------------------+----------+-----------|
| » | Link beat enabled | J2 | Pins 1 & |
| | | | 2 closed |
|---+---------------------------------+----------+-----------|
| | Link beat disabled | J2 | Pins 2 & |
| | | | 3 closed |
|---+---------------------------------+----------+-----------|
| » | Receive threshold select normal | J3 | Pins 1 & |
| | | | 2 closed |
|---+---------------------------------+----------+-----------|
| | Receive threshold select low 1 | J3 | Pins 2 & |
| | | | 3 closed |
|---+---------------------------------+----------+-----------|
| » | Equalization disabled 2 | J4 | Pins 2 & |
| | | | 3 closed |
|---+---------------------------------+----------+-----------|
| | Equalization enabled 3 | J4 | Pins 1 & |
| | | | 2 closed |
|---+---------------------------------+----------+-----------|
| » | Transmit level select normal (± | J6 | Pins 1 & |
| | 5V) | | 2 closed |
|---+---------------------------------+----------+-----------|
| | Transmit level select low (± | J6 | Pins 2 & |
| | 2V) | | 3 closed |
|---+---------------------------------+----------+-----------|
| » | Cable Impedance select 100ohms | J7 | Pins 2 & |
| | | | 3 closed |
|---+---------------------------------+----------+-----------|
| | Cable Impedance select 150ohms | J7 | Pins 3 & |
| | | | 4 closed |
|---+---------------------------------+----------+-----------|
| | Cable Impedance select 75ohms | J7 | Pins 1 & |
| | | | 2 closed |
|---+--------------------------------------------------------|
| | Note 1: Use this setting with the 3Com MultiConnect TP |
| | Module. Do not use this setting with the 3Com |
| | LinkBuilder, or the SynOptics LattisNet Model 3308. |
| | |
| | Note 2: This is the 10BASE-T standard and should be |
| | used with all 10BASE-T standard hubs. |
| | |
| | Note 3: This setting is required when using any |
| | Pre-10BASE-T SynOptics hub. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+---------+-----------+------------------------------|
| L1 | Yellow | Blinking | Data is being transmitted or |
| | | | received |
|-------+---------+-----------+------------------------------|
| L1 | Yellow | Off | Data is not being |
| | | | transmitted or received |
|-------+---------+-----------+------------------------------|
| L2 | Green | On | Twisted pair network |
| | | | connection is good |
|-------+---------+-----------+------------------------------|
| L2 | Green | Blinking | Twisted pair wire polarity |
| | | | reversed |
|-------+---------+-----------+------------------------------|
| L2 | Green | Off | Twisted pair network |
| | | | connection is broken |
|------------------------------------------------------------|
| Note: Reversed polarity is automatically corrected for |
| but this may impede performance. It is suggested that |
| reversed polarity wires be corrected to attain maximum |
| performance. |
+------------------------------------------------------------+