Numbe
r
Indicator/
Button
Color Description
1 RSSI
NOTE
There are
three RSSI
indicators
arranged
horizontally
on the panel,
which turn
on in
sequence.
More RSSI
indicators in
steady on
state indicate
a larger
received
signal
strength
indicator
(RSSI) value
and higher
signal
strength.
Green One indicator on: The signal strength is low.
Two indicators on: The signal strength is
medium.
Three indicators on: The signal strength is high.
Three indicators off: No signal is available.
2 and 3 4G/3G/2G
indicators
Green 2G indicator steady on: The wireless module is
working in 2G mode.
3G indicator steady on: The wireless module is
working in 3G mode.
2G and 3G indicators steady on: The wireless
module is working in 4G mode.
2G and 3G indicators off: The wireless module
does not work normally or is unregistered.
4 SIM Green Steady on: A SIM card is installed in the slot
and is working normally.
Off: No SIM card is installed in the slot.
5 RUN/ALM Red and
green
Steady green: The system has been upgraded or
configured using a USB flash drive.
Slow blinking green: The system is running
properly.
Fast blinking green: The system is loading or
undergoing a USB-based deployment.
Steady red: A system fault or USB-based
deployment failure has occurred and requires
manual intervention.
Off: The system software is not running or is
resetting.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 79
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