Indicators Status Remarks Description
Blinking red
and green
alternatively
Blinking at long
intervals (on for
1s and then o for
1s)
Abnormal No communication
with the SUN2000
– Remove and then
insert the Smart
Dongle.
– Check whether the
SUN2000 matches
the Smart Dongle.
– Connect the Smart
Dongle to another
SUN2000.
Check whether the
Smart Dongle is
faulty or the USB
port of the
SUN2000 is faulty.
Green Blinking at long
intervals (on for
0.5s on and then
o for 0.5s)
Normal Connecting to the
router.
Green Steady on Connected to the
management system.
Green Blinking at short
intervals (on for
0.2s and then o
for 0.2s)
The SUN2000
communicates with
the management
system through the
Smart Dongle.
● 4G Smart Dongle
Table 6-4 LED indicator description
LED Color
Status Remarks Description
N/A O Normal The Dongle is not
secured or is not
powered on.
Yellow
(blinking
green and red
simultaneousl
y)
Steady on Normal The Dongle is secured
and powered on.
Green Blinking in a 2-
second cycle (on
Normal Dialing (duration < 1
min).
SUN2000-(8KTL-20KTL)-M2
User Manual 6 Commissioning
Issue 11 (2023-02-07) Copyright © Huawei Technologies Co., Ltd. 74