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
