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Description
An RS232 cable is used to connect the RS232 interface of a router to a serial interface of a
management computer.
Appearance and Structure
shows the structure of an RS232 cable.
Figure 6-50
Structure of an RS232 cable
DB9 female connector
X1
Pos.9
Pos.5
ODEOH
Pos.6
Pos.1
DB9 male connector
X2
Pos.9
Pos.5
Pos.6
Pos.1
Pin Assignments
lists the pin assignments of an RS232 cable.
Table 6-81
Pin assignments of an RS232 cable
X1 (DB9 Female
Connector)
Signal
Function
X2 (DB9 Male
Connector)
1
CON_DCD
Data carrier detect
1
2
CON_RXD
Receiving data
2
3
CON_TXD
Transmitting data
3
4
CON_DTR
Data terminal ready
4
5
GND_RS232
Signal ground
5
6
CON_DSR
Data set ready
6
7
CON_RTS
Request to send
7
8
CON_CTS
Clear to send
8
9
-
NC
9
Connection
An RS232 cable is connected as follows:
l
The DB9 male connector is connected to the RS232 interface of a router.
l
The DB9 female connector is connected to a maintenance terminal, generally a
computer.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
6 Cables
Issue 10 (2019-03-06)
Copyright © Huawei Technologies Co., Ltd.
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