Huawei EchoLife HG8240 Quick Start Manual page 16

Description of LEDs
PON and LOS are GPON LEDs. The status of PON and LOS reflects the connection
between GPON terminal and the optical line terminal (OLT). The following table
describes the status of the PON and LOS LEDs.
Table 2 LED status indications 2
No.
PON
1 Off
2 Fast blinking
(Twice per second)
3 On
4 Off
5 Fast blinking
(Twice per second)
When the LEDs are in the states as described in No. 5, that is, the OLT detects that the device is
a rogue ONT, rectify the fault in time and replace the rogue ONT.
Status
LOS
Off
Off
Off
Slow blinking
(Once two seconds)
Fast blinking
(Twice per second)
13
Description
The ONT is disabled by the OLT.
The ONT tries to create a connection
to the OLT.
A connection is created between the
ONT and the OLT.
The receive optical power of the ONT
is lower than the receiver sensitivity.
The OLT detects that the device is a
rogue ONT.