Numb
er
Indicator Color Description
3 USB Red and
green
Off: No USB flash drive is connected to the router,
the USB interface has failed, or the USB indicator
has failed.
Steady green: The system has been upgraded or
configured using a USB flash drive.
Blinking green: The system is reading data from the
USB flash drive.
Steady red: The router fails to connect to or register
with the network management system.
Blinking red: An error has occurred when the
system is executing the configuration file or reading
data from the USB flash drive.
4 PPP Green Steady on: A PPP connection has been established.
Off: No PPP connection is established.
5 VPN Green Steady on: A VPN connection has been established.
Off: No VPN connection is established.
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.
8 WWAN Green Steady on: A 4G/3G/2G connection has been
established and is active.
Blinking: Data is being transmitted or received over
the 4G/3G/2G connection.
Off: The 4G/3G/2G connection has not been
established or is inactive.
9 VDSL Green Steady on: A link has been established on the VDSL
interface.
Blinking: Data is being transmitted or received on
the VDSL interface.
Off: No link is established on the VDSL interface.
Huawei
AR500&AR510&AR531&AR550&1500&AR2500
Industrial Switch Routers
Hardware Description
3 Chassis
Issue 10 (2019-03-06) Copyright © Huawei Technologies Co., Ltd. 334
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