3Com 3C16950 - Modem Cable; RJ45 Pin Assignments

40 A
PPENDIX
B: P
IN
-
OUTS
Modem Cable
9-pin to RS-232 25-pin
RJ45 Pin
Assignments
Pin assignments are identical for 10BASE-T and 100BASE-TX RJ45
connectors
Ta b l e 6
Pin assignments
Pin Number Signal Function
Ports configured as MDI
1 TxData + Transmit data
2 TxData – Transmit data
3 RxData + Receive Data
4 Not assigned
5 Not assigned
6 RxData – Receive data
7 Not assigned
8 Not assigned
Ports configured as MDIX
1 RxData + Receive Data
2 RxData – Receive Data
3 TxData + Transmit data
4 Not assigned
5 Not assigned
6 TxData – Transmit data
7 Not assigned
8 Not assigned
16950ua.bk Page 40 Thursday, April 29, 1999 1:28 PM