3

Product Installation

Version: A

3-5



Note: This power adapter can convert 220V AC into 12V DC input

for the AN5506-04-A so as to supply power to the device.

3.4

Examination after Installation

After the connection of wires and cables is finished and relevant services

are started up by your ISP, it needs to power on and examine the

AN5506-04-A as below:



Switch on the power.



Observe the status of

Power

indicator LED. If

Power

indicator LED

is on, it means the power-on of the device is normal. Otherwise,

please check whether the connection of power cable is correct.



Observe the status of

LOS

indicator LED. If

LOS

indicator LED is

off, it means the optical fiber connection is normal. Otherwise,

please check whether the connection of optical fibers is correct.



Observe the status of

LAN

indicator LED. If

LAN

indicator LED is

on or blinks, it means the network cable is connected normally.

Otherwise, please check whether the connection of network cable is

correct.



Ensure the ventilation around during the device running to avoid

problems because of overheating. In the case of abnormity, contact

the local office of FiberHome for replacement, so as not to affect

equipment running.

Version: A

4-1

4

FAQs

Q:

All indicator LEDs are off after power-on.

A:

1)

Check whether the power connection cable is connected well.

2)

Check whether the power switch on the front panel of device is on.

Q: The device fails to work after a period of normal running.

A:

1)

If the device works abnormally, check whether the power is

connected normally or the voltage is over high or over low.

2)

The device has over-heat fault. Check whether the ventilation is

normal and check whether there is direct sunshine or heat

source around.

Q: LOS indicator LED is on.

A:

1) The optical fiber is faulty. Check whether the optical fiber is

connected normally and whether it is connected to correct

interface.

2)

The upstream equipment is faulty.

3)

The

optical power is out of the normal range (such as overload).

AN5506-04-A GPON Optical Network Unit User Manual

4-2

Version: A

Q: LAN indicator LED is off.

A:

1)

Check whether the network cable is damaged or its connection is

loose.

2)

Check whether the network cable is made correctly. If it is

incorrect, replace it with a new network cable made according to

the standard method (for making a CAT 5 twisted-pair cable).

3)

Check whether the network cable length exceeds allowable range.

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