Numbe
r
Indicator Color Description
1 PWR Green Steady on: The system power supply is normal.
Off: The system power is off.
2 SYS Red and
green
Slow blinking green: The system is running
properly.
Fast blinking green: The system is being
powered on or restarting.
Steady red: A fault that affects services has
occurred. The fault cannot be rectified
automatically and requires manual intervention.
Off: The system software is not running or is
resetting.
3 USB Red and
green
Steady green: The system has been upgraded or
configured using a USB flash drive.
Blinking green: The system is being upgraded
or configured using a USB flash drive.
Steady red: The system fails to be upgraded or
configured using a USB flash drive.
Off: No USB flash drive is connected, the USB
interface has failed, or the indicator has failed.
4 PPP Green Steady on: A PPP connection has been set up.
Off: No PPP connection is set up.
5 VPN Green Steady on: The VPN service is running
normally.
Off: The VPN service is unavailable.
6 4G Green Steady on: The 4G signal strength is high.
Fast blinking: The 4G signal strength is
medium.
Slow blinking: The 4G signal strength is low.
Off: No 4G signal is available.
7 3G/2G Green Steady on: The 3G/2G signal strength is high.
Fast blinking: The 3G/2G signal strength is
medium.
Slow blinking: The 3G/2G signal strength is
low.
Off: No 3G/2G signal is available.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 419
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