64
A
PPENDIX
B: P
IN
-
OUTS
Modem Cable
RJ-45 to RS-232 25-pin
RJ-45 Pin
Assignments
Pin assignments are identical for 10/100 and 1000 RJ-45 connectors.
Table 10
Pin assignments
Screen
TxD
RxD
RTS
CTS
DSR
Ground
DCD
DTR
Screen
TxD
RxD
RTS
CTS
DSR
Ground
DCD
DTR
Shell
3
2
7
8
6
5
1
4
1
2
3
4
5
6
7
8
20
Switch 3870
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-
DUA1745-0AAA02.book Page 64 Monday, August 9, 2004 11:51 AM
Содержание SUPERSTACK 3 3870 Series
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Страница 30: ...30 CHAPTER 2 INSTALLING THE SWITCH DUA1745 0AAA02 book Page 30 Monday August 9 2004 11 51 AM...
Страница 54: ...54 CHAPTER 4 PROBLEM SOLVING DUA1745 0AAA02 book Page 54 Monday August 9 2004 11 51 AM...
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