Sun Microsystems 2.0 - Manual (Page 16)

1-4 SunFastEthernet Adapter 2.0 Installation and User’s Guide—July 1996
1
MII
The MII (Media Independent Interface) on the SunFastEthernet Adapter allows
connection to external Fast Ethernet transceivers, thereby allowing
compatibility with different wiring types. By default, the driver selects the MII
connection. See the table on page 1-2 for compatibility standards.
Prior to proceeding, you should decide which network connection to use —
either the SunFastEthernet Adapter RJ-45 or the MII, but not both. See Chapter
3, Section 3.6.6, “External Transceivers” or your external transceiver
documentation for more detailed information.