Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
Figure 6-69 Structure of an asynchronous serial cable
Pos.14
Pos.25
Table 6-109
Table 6-109 Pin assignments of an asynchronous serial cable
X2 (RJ45)
1
2
3
4
5
6
7
8
Self-made Cable: Connecting to a Serial Port Server
Figure 6-70
Issue 10 (2019-03-06)
D-type connector
(25-pin, male)
Pos.1
X1
Pos.13
lists the pin assignments of an asynchronous serial cable.
Signal
RTS
DTR
TXD
DCD
GND
RXD
DSR
CTS
shows the structure of a self-made cable.
Copyright © Huawei Technologies Co., Ltd.
Label
Network port connector
(8-pin, RJ-45)
X2
X3
D-type connector
(9-pin, male)
Direction
X1 (DB25)
4
→
→
20
→
2
8
←
-
7
←
3
←
6
5
←
6 Cables
1 8
Pos.6
Pos.1
Pos.9
Pos.5
X3 (DB9)
7
4
3
1
5
2
6
8
731