Huawei AR500 Series Hardware Description page 719

Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
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
Figure 6-50
Figure 6-50 Structure of an RS232 cable
Pos.9
Pos.6
Pin Assignments
Table 6-81
Table 6-81 Pin assignments of an RS232 cable
X1 (DB9 Female
Connector)
1
2
3
4
5
6
7
8
9
Connection
An RS232 cable is connected as follows:
l
l
Issue 10 (2019-03-06)
shows the structure of an RS232 cable.
DB9 female connector
Pos.5
Pos.1 X1
lists the pin assignments of an RS232 cable.
Signal
CON_DCD
CON_RXD
CON_TXD
CON_DTR
GND_RS232
CON_DSR
CON_RTS
CON_CTS
-
The DB9 male connector is connected to the RS232 interface of a router.
The DB9 female connector is connected to a maintenance terminal, generally a
computer.
Copyright © Huawei Technologies Co., Ltd.
DB9 male connector
Pos.9
X2 Pos.6
Function X2 (DB9 Male
Connector)
Data carrier detect 1
Receiving data 2
Transmitting data 3
Data terminal ready 4
Signal ground 5
Data set ready 6
Request to send 7
Clear to send 8
NC 9
6 Cables
Pos.5
Pos.1
708