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68
C
4: S
I
HAPTER
WITCH
NSTALLATION
n
Connecting AUX Cable
The PC serial port is not hot-swappable, so you are not allowed to insert or
remove the console cable into or from the PC serial port.
When connecting the console cable, first connect the DB9/DB25 end to the PC
serial port and then the RJ45 end to the console port of the switch. And removing
the console cable is just in inverse order.
When removing the console cable, first remove the RJ-45 end and then the
DB9/DB25 end.
You need an AUX cable when configuring the Switch 8800 Family with the remote
modem dial-up approach.
Introduction
AUX cable is an 8-core shielded cable. At one end of the cable is an
RS-232-compliant RJ-45 connector that can be plugged into the console port of
the switch. At the other end are DB-9 (male) connector and DB-25 (male)
connector. You can plug either of them into the DB-9 (female) or DB-25 (female)
port of the modem as needed. The following figure illustrates the AUX cable.
Figure 49 AUX cable
Enlarged A side
Pos.1
DB25 Male
A
Pos.25
Table 72 AUX cable pinouts
RJ-45
Signal
1
RTS
2
DTR
3
TXD
4
CD
5
GND
6
RXD
7
DSR
8P8C PLUG
Enlarged B side
Label
B
Pos.1
Enlarged C side
Pos.9
DB9 Male
C
Pos.1
Direction
DB-25
→
4
→
20
→
2
←
8
-
7
←
3
←
6
Pos.8
DB-9
7
4
3
1
5
2
6
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