Connector - Media Independent Interface (MII)40 PIN HI-DENSITY D-SUB FEMALE at the network device. 40 PIN HI-DENSITY D-SUB MALE at the transciever. | (at the network device). |  | (at the transciever). |
Pin | Name | Direction | Description |
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1 | V | --- | +5 Vdc/ 3.3 Vdc | 2 | MDIO | --- | MII Data Input/Output | 3 | MDC | Output | MII Data Clock | 4 | RxD | Input | Rx Data | 5 | RxD | Input | Rx Data | 6 | RxD | Input | Rx Data | 7 | RxD | Input | Rx Data | 8 | Rx_DV | Input | Rx Data Valid | 9 | Rx_CLK | Input | Rx Clock | 10 | Rx_ER | Input | Rx Error | 11 | Tx_ER | Output | Tx Error | 12 | Tx_CLK | Input | Tx Clock | 13 | Tx_EN | Output | Tx Enable | 14 | TxD | Output | Tx Data | 15 | TxD | Output | Tx Data | 16 | TxD | Output | Tx Data | 17 | TxD | Output | Tx Data | 18 | COL | Input | Collision | 19 | CRS | Input | Carrier Sense | 20 | V | --- | +5 Vdc/ +3.3 Vdc | 21 | V | --- | +5 Vdc/ +3.3 Vdc | 22 | GND | --- | Ground | 23 | GND | --- | Ground | 24 | GND | --- | Ground | 25 | GND | --- | Ground | 26 | GND | --- | Ground | 27 | GND | --- | Ground | 28 | GND | --- | Ground | 29 | GND | --- | Ground | 30 | GND | --- | Ground | 31 | GND | --- | Ground | 32 | GND | --- | Ground | 33 | GND | --- | Ground | 34 | GND | --- | Ground | 35 | GND | --- | Ground | 36 | GND | --- | Ground | 37 | GND | --- | Ground | 38 | GND | --- | Ground | 39 | GND | --- | Ground | 40 | V | --- | +5 Vdc/ +3.3 Vdc |
Note: Direction is DTE (Network device) relative DCE (Transciever).
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