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Installation Manual
H3C S5100-SI/EI Series Ethernet Switches
Chapter 3 Installing the Switch
3-22
Table 3-4
Console cable connector pinouts and mapping relation
RJ-45
Signal
Direction
DB-9
1 RTS
←
7
2 DTR
←
4
3 TXD
←
3
4 CD
→
1
5 GND
— 5
6 RXD
→
2
7 DSR
→
6
8 CTS
→
8
3.6.2 Connecting Console Cable
Follow these steps to connect a terminal device, a PC for example, to the switch:
Step 1: Connect the DB-9 female connector of the Console cable to the serial port of
the PC or the terminal device used to configure the switch.
Step 2: Connect the RJ-45 connector of the Console cable to the Console port of the
switch.
Caution:
Identify the label of the port before connecting a connector.
Note:
If the switch has been powered on,
z
First connect the DB-9 connector of the console cable to the PC before connecting
the RJ45 connector to the switch.
z
Disconnect the DB-9 connector of the console cable from the PC after
disconnecting the RJ45 connector from the switch.