3COM CORPORATION
EtherLink II TP (3C503B-TP; Assy.#06-0098)
|
NIC Type |
Ethernet |
|
Transfer Rate |
10Mbps |
|
Data Bus |
8-bit ISA |
|
Topology |
Linear bus Star |
|
Wiring Type |
Unshielded twisted pair AUI transceiver via DB-15 port |
|
Boot ROM |
Available |
|
10BASE-T STANDARD COMPATIBILITY CONFIGURATION |
||||
|
Setting |
Jumper |
Setting |
||
|
» |
Link beat enabled |
J1 |
Pins 1 & 2 closed |
|
|
|
Link beat disabled |
J1 |
Pins 2 & 3 closed |
|
|
» |
Receive threshold select normal |
J2 |
Pins 1 & 2 closed |
|
|
|
Receive threshold select low 1 |
J2 |
Pins 2 & 3 closed |
|
|
» |
Transmit level select normal (± 5V) |
J3 |
Pins 1 & 2 closed |
|
|
|
Transmit level select low (± 2V) |
J3 |
Pins 2 & 3 closed |
|
|
» |
DC signal disabled 2 |
J4 |
Pins 1 & 2 closed |
|
|
|
DC signal enabled (on receive wires) 3 |
J4 |
Pins 2 & 3 closed |
|
|
» |
Cable impedance select 100ohms |
J6 |
Pins 2 & 3 closed |
|
|
|
Cable impedance select 150ohms |
J6 |
Pins 3 & 4 closed |
|
|
|
Cable impedance select 75ohms |
J6 |
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. |
|||
|
PRE-10BASE-T STANDARD COMPATIBILITY CONFIGURATION |
||
|
Jumper |
SynOptics LattisNet (see note) |
HP StarLAN10, DAVID ExpressNet, AT&T StarLan10 (Model 6601-01) |
|
J1 |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
J2 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
J3 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
J4 |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
J6 |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
Note:This table applies to SynOptic's System 3000 (module 3305), the 2500 family (models 2500, |
||
|
BOOT ROM ADDRESS |
||||||
|
Address |
JP7A |
JP7B |
JP7C |
JP7D |
JP7E |
|
|
» |
Disabled |
Closed |
Open |
Open |
Open |
Open |
|
|
C8000h |
Open |
Closed |
Open |
Open |
Open |
|
|
CC000h |
Open |
Open |
Closed |
Open |
Open |
|
|
D8000h |
Open |
Open |
Open |
Closed |
Open |
|
|
DC000h |
Open |
Open |
Open |
Open |
Closed |
|
I/O BASE ADDRESS |
|||||||||
|
Address |
JP8A |
JP8B |
JP8C |
JP8D |
JP8E |
JP8F |
JP8G |
JP8H |
|
|
» |
300h |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
250h |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
|
|
280h |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
|
|
2A0h |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
|
|
2E0h |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
|
|
310h |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
|
|
330h |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
|
|
350h |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
|
DIAGNOSTIC LED(S) |
|||
|
LED |
Color |
Status |
Condition |
|
L1 |
Yellow |
Blinking |
Data is being transmitted/received |
|
L1 |
Yellow |
Off |
Data is not being transmitted/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 |
|
Notes:L2 is functional only when the cable type is twisted pair. Reversed polarity is automatically corrected for but this may impede performance. It is suggested that |
|||
