Table 6-16 Description of the signal indicators
Silkscreen Color Description
Signal 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.
SIM Card Indicator
Table 6-17 describes the possible states of a SIM card indicator.
Table 6-17 Description of a SIM card indicator
Silkscreen
Color Description
SIM Green Steady on: A SIM card is installed in the
corresponding slot and is working normally.
Off: No SIM card is installed in the
corresponding slot.
SYS Indicator
Table 6-18 describes the possible states of the SYS indicator.
Table 6-18 Description of the SYS indicator
Silkscreen
Color Description
SYS Green Slow blinking: The system is running
properly.
Fast blinking: The system is powering on or
is restarting.
Off: The system software is not running or is
resetting.
PWR Indicator
Table 6-19 describes the possible states of the PWR indicator.
Huawei AR500&AR530&AR550 series Industrial Switch
Routers
Hardware Installation and Maintenance Guide
6 Appendix
Issue 05 (2015-12-01) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
133
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