Zte ZXHNF660 User Manual page 5

Figure 3-1
Table 3-1 describes the indicators on the front panel of the ZXHN F660 unit.
Table 3-1
Indicator
Power
PON
LOS
Status
Off
Solid green
Off
Solid green
Flashing green
Off
Solid red
Flashing red
Description
No power
Power on
The ONT registration fails or the system is
not powered on.
The ONT registration is successful.
The ONT is being registered.
The ONT received optical power is normal.
The optical transmitter of the PON interface
is powered off.
The ONT received optical power is lower
than the optical sensitivity of the receiver.