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70
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 10
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-
DUA1720-3AAA05.book Page 70 Friday, March 7, 2003 11:53 AM
Summary of Contents for 4400
Page 8: ...8 ABOUT THIS GUIDE DUA1720 3AAA05 book Page 8 Friday March 7 2003 11 53 AM...
Page 12: ...DUA1720 3AAA05 book Page 12 Friday March 7 2003 11 53 AM...
Page 34: ...34 CHAPTER 2 INSTALLING THE SWITCH DUA1720 3AAA05 book Page 34 Friday March 7 2003 11 53 AM...
Page 62: ...62 CHAPTER 4 PROBLEM SOLVING DUA1720 3AAA05 book Page 62 Friday March 7 2003 11 53 AM...
Page 72: ...72 APPENDIX B PIN OUTS DUA1720 3AAA05 book Page 72 Friday March 7 2003 11 53 AM...
Page 86: ...DUA1720 3AAA05 book Page 86 Friday March 7 2003 11 53 AM...