FiberHome AN5121-4GP, Руководство пользователя

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5 FAQ
5 FAQ
FAQ1: All the indicator LEDs are extinguished after the
equipment is powered on.
1. Check whether the external power supply is normal.
2. When the power cable is directly connected with the external
power supply, check whether the three-conductor power cable
for the equipment is correctly connected to the
neutral wire ,
live wire and earth wire of the external power cable.
FAQ2: The equipment stops running after normal operation for
a period of time.
1. Check whether the power cable terminal has a poor contact.
2. Check whether the power voltage is excessively high or low, i.e.,
out of the specified range.
FAQ3: The LOS indicator LED is ON.
1. Check whether the optical cable is damaged.
2. Check whether the optical fiber connector of the optical cable is
normally connected to the ONU optical interface.
3. The Rx optical power of the ONU is excessively low.
4. The optical module of the ONU is aged or damaged.
5. The terminal equipment is faulty.
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