3com superstack ii 3300 User Manual

Page of 64
42
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
Table 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
16982ug1.bk  Page 42  Thursday, April 29, 1999  4:51 PM