Troubleshooting
Troubleshooting
Diagnosing CPE Indicators
The FTTH CPE can be easily monitored through panel indicators to identify problems. The table below describes common problems you may encounter and possible solutions.
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 |
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| |
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| LAN port. Check the PoE source device to be sure |
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| that it is configured to deliver PoE through the |
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| connected port. Also check that the PoE source |
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| device has not exceeded its power budget and |
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| turned off the port power. |
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| • 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. | |
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| |
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| • Check the network adapter in the computer and |
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| cable connections for possible defects. Replace the |
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| 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 |
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| |
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| specified limits. |
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| • Contact your FTTH service provider. |
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If You Cannot Connect to the Internet
•Check that the attached computer is properly configured for TCP/IP. See “Configuring the TCP/IP Protocol” on page 21.
•Make sure the correct network adapter driver is installed for the computer operating system. If necessary, try reinstalling the driver.
•Check if the network adapter’s speed or duplex mode has been configured manually. Note that we recommend setting the adapter to
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