Accton Technology EC3802-WDM manual Troubleshooting, Diagnosing CPE Indicators

Symptom

Cause

Solution

PWR indicator does

Power outlet, or external

• Check the power outlet by plugging in another device

not light up after power

AC power adapter may

that is functioning properly.

on.

be defective.

• PoE power to the CPE may be not be supplied to the

LAN port. Check the PoE source device to be sure

that it is configured to deliver PoE through the

connected port. Also check that the PoE source

device has not exceeded its power budget and

turned off the port power.

• Contact your FTTH service provider.

LINK indicator does

Network interface (e.g., a

• Verify that the CPE and computer are powered on.

not light up after

network adapter card in

• Be sure the cable is plugged into both the CPE and

making a connection.

the attached computer),

network cable, or CPE

the computer.

UTP port may be

• Verify that the proper cable type is used and its length

defective.

does not exceed specified limits.

• Check the network adapter in the computer and

cable connections for possible defects. Replace the

defective cable if necessary.

OPT indicator does not

The CPE is not powered

• Verify that the CPE is powered on.

light up after power on.

on, the link is down at the

• Be sure the fiber cable splice and SC connector are

Central Office, or the

fiber cable may be

connected correctly in the CPE.

defective.

• Verify that the fiber cable length does not exceed

specified limits.

• Contact your FTTH service provider.