1
WAN interfaces: two LTE antenna
interfaces
2
RS485/RS422 interface
NOTE
SG is the ground for RS485/RS422 signal
isolation.
3
RS232 interface
4
DI/DO interface
5
Ground point
NOTE
To protect the router from lightning and
interference, reliably ground the router using
a
.
6
USB interface
7
LAN interfaces: two GE electrical
interfaces
NOTE
l
GE0 is a management interface and is
used to upgrade the router.
l
The GE LAN interface can be used as a
WAN interface.
8
Config button
NOTE
The Config button is used to restore the
factory settings and switch RS232 interfaces.
l
Holding down the button for 5s or longer
will restart the router and restore the
factory settings.
l
Holding down the button for less than 5s
will switch between the CON and RS232
modes. The factory default mode is
CON.
Restoring the factory settings will cause
service interruption. Exercise caution when
using this button.
9
Power socket
NOTE
l
The router supports Huawei
W Integrated Power Adapter with an
Adapter Cable
.
l
GND is the ground for power signal
isolation.
10 Two SIM card slots
NOTE
l
The router must use industrial SIM cards.
l
The router supports double-card single-
standby, and SIM1 is the default master
card.
l
If only one SIM card needs to be
installed, install it in slot SIM1.
11 DIP switch
NOTE
By default, the DIP switch is in RS485 state
and works in half-duplex mode, with pull-up
and pull-down resistance of 150 kohm and
without 120 ohm matched load resistance.
-
-
Indicator Description
shows indicators on the AR502EG-Lj.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06)
Copyright © Huawei Technologies Co., Ltd.
105