64
A
PPENDIX
A: P
IN
-
OUTS
Modem Cable
RJ-45 to RS-232 25-pin
Ethernet Port RJ-45
Pin Assignments
10/100 and 1000BASE-T RJ-45 connections.
Table 10
Pin assignments
Table 11
Pin assignments
Screen
TxD
RxD
RTS
CTS
DSR
Ground
DCD
DTR
Screen
TxD
RxD
RT S
CTS
DSR
Ground
DCD
DTR
Shell
3
2
7
8
6
5
1
4
1
2
3
4
5
6
7
8
20
3Com Switch
Cable connector: RJ-45 female
RS-232 Modem Port
Cable connector: 25-pin male
Pin Number
10/100
1000
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-
Pin Number
10/100
1000
Ports configured as MDIX
1
Receive Data +
Bidirectional Data B+
2
Receive Data -
Bidirectional Data B-
10014914_AB_Switch 4200G.book Page 64 Tuesday, October 2, 2007 12:13 PM
Summary of Contents for 4200G Series
Page 4: ...10014914_AB_Switch 4200G book Page 4 Tuesday October 2 2007 12 13 PM ...
Page 8: ...8 CONTENTS 10014914_AB_Switch 4200G book Page 8 Tuesday October 2 2007 12 13 PM ...
Page 12: ...12 ABOUT THIS GUIDE 10014914_AB_Switch 4200G book Page 12 Tuesday October 2 2007 12 13 PM ...
Page 66: ...66 APPENDIX A PIN OUTS 10014914_AB_Switch 4200G book Page 66 Tuesday October 2 2007 12 13 PM ...