60 A
PPENDIX
B: P
IN
-
OUTS
Modem Cable
9-pin to RS-232 25-pin
RJ-45 Pin
Assignments
Pin assignments are identical for 10BASE-TX and 100BASE-T RJ-45
connectors.
Table 11 Pin assignments
Pin Number Signal Function
Ports configured as MDI
1 Transmit Data + Bidirectional Data A+
2 Transmit Data + Bidirectional Data A-
3 Receive Data + Bidirectional Data B+
4 Not assigned Bidirectional Data C+
5 Not assigned Bidirectional Data C-
6 Receive Data – Bidirectional Data B-
7 Not assigned Bidirectional Data D+
8 Not assigned Bidirectional Data D-
DUA1720-3AAA03_online.book Page 60 Monday, March 25, 2002 10:48 AM
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