40 A PPENDIX B: P IN- OUTSModem Cable 9-pin to RS-232 25-pinRJ45 PinAssignmentsPin assignments are identical for 10BASE-T and 100BASE-TX RJ45connectorsTable 6 Pin assignmentsPin Number Signal FunctionPorts configured as MDI1 TxData + Transmit data2 TxData – Transmit data3 RxData + Receive Data4 Not assigned5 Not assigned6 RxData – Receive data7 Not assigned8 Not assignedPorts configured as MDIX1 RxData + Receive Data2 RxData – Receive Data3 TxData + Transmit data4 Not assigned5 Not assigned6 TxData – Transmit data7 Not assigned8 Not assigned