3Com Corporation
EtherDisk Diskette for the EtherLink II Adapters
Physical Transmission Options
The EtherLink II TP adapter has six options that control data transmission
on the physical medium. These options are set by moving jumpers on the
adapter.
This file contains information that will help you set these options so that
the EtherLink II TP adapter will work correctly with both 10BASE-T and
non-10BASE-T hubs. For more detailed information, refer to the
EtherLink II TP Adapter Guide.
NOTE: This file applies only to the EtherLink II TP adapter. For
information on the EtherLink II/16 TP Adapter, please refer
to the EtherLink II/16 TP Adapter Guide.
Wire Impedance
--------------
Set the WIRE IMPEDANCE jumpers to match the characteristic impedance of your
cable.
Use a standard test device to verify the characteristic impedance of your
cable from the wiring closet to the station. Use the 100-ohms setting if
you are connecting to standard 10BASE-T wiring.
The available settings are:
Setting Impedance Range
------- ---------------
75 70-85 ohms
100 85-115 ohms
150 115-160 ohms
Other Options
-------------
The other jumpers should be set according to the following table:
HP StarLAN 10,
SynOptics AT&T STARLAN 10,
10BASE-T LattisNet DAVID Systems BULL Hub 10
Jumper (default) (non-10BASE-T) (non-10BASE-T) (non-10BASE-T)
-------- --------- -------------- -------------- --------------
LINK PULSE ON OFF OFF OFF
EQUALIZATION TX RX TX RX
DC SIGNAL OFF ON OFF OFF
TRANSMIT
LEVEL NORM LOW NORM LOW
RECEIVE
THRESHOLD NORM LOW NORM LOW
(%VER Physical Transmission Options v3.4a)
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.