90
A
PPENDIX
B: 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-
10014914AA.book Page 90 Friday, July 7, 2006 2:08 PM
Summary of Contents for 4200G PWR
Page 4: ...10014914AA book Page 4 Friday July 7 2006 2 08 PM ...
Page 30: ...30 CHAPTER 2 INSTALLING THE SWITCH 10014914AA book Page 30 Friday July 7 2006 2 08 PM ...
Page 74: ...74 CHAPTER 5 UPGRADING SOFTWARE 10014914AA book Page 74 Friday July 7 2006 2 08 PM ...
Page 92: ...92 APPENDIX B PIN OUTS 10014914AA book Page 92 Friday July 7 2006 2 08 PM ...
Page 96: ...96 APPENDIX C TECHNICAL SPECIFICATIONS 10014914AA book Page 96 Friday July 7 2006 2 08 PM ...
Page 104: ...10014914AA book Page 104 Friday July 7 2006 2 08 PM ...