3Com EtherLink III User Manual page 18

2-6
C
hapter
Drivers from the previous generation o f EtherLink ill adapters
(that is, adapters without a "B"suffix) do not support the Auto
Select Media Type function.
If it is unable to detect which cable is connected or if there is
no cable connected, the Auto Select Media Type function
defaults to the type of connector that is set in the EEPROM.
2: I A
nstalling the dapter