Installation Manual
Quidway S3526 Ethernet Switch Chapter 4 Installation
4-6
Connect chassis grounding screw to the ground with a ground wire, and make sure that
the ground resistance is not greater than 5ohm. If the switch is installed in a standard
19-inch cabinet, the cabinet should be grounded in the same way.
4.3 Console Cable Connection
4.3.1 Console Cable
The console cable is an 8-core shielded cable. One end of the cable is a crimped RJ-45
connector, which is to be plugged into the console port of the switch. The other end is
furnished with a DB-9-pin connector and a DB-25-pin connector. You can select either
of them based on your actual requirement to fit in with the 25-pin or 9-pin interface on
the configuration terminal. The Console cable is shown in the following figure.
Enlarged A side
Pos. 25
A
DB 25 Female
8P8C Plug
Enlarged B side
Pos.1
Pos.8
DB9 Female
Enlarged C side
Pos.1
Pos.9
C
Pos.1
B
Figure 4-6 Console cable
Table 4-1 Console cable pinouts
RJ-45 Signal Direction DB-25 DB-9
1 RTS <---- 4 7
2 DTR <---- 20 4
3 TXD <---- 2 3
4 CD ---> 8 1
5 GND ---- 7 5
6 RXD ---> 3 2
7 DSR ---> 6 6
8 CTS ---> 5 8
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