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168 Sun Enterprise 220R Server Owner’s Guide • October 1999
Reference for the Media Independent
Interface (MII) Connector
The Media Independent Interface (MII) connector is located on the main logic board
back panel.
MII Connector Diagram
MII Connector Signals
Pin Signal Name Description
1 Pwr Power
2 Mdio Management data I/O
3 Mdc Management data clock
4 Rxd3 Receive data 3
7 Rxd0 Receive data 0
8 Rx_dv Receive data valid
9 Rx_clk Receive clock
10 Rx_er Receive error
11 Tx_er Transmit error
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