NEC NE3108-004, User Manual

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10. Troubleshooting
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Unable to Connect the Network
Check the cable
□ Make sure the cable latch has locked
Check the latch of the cable.
If it is not locked, Re-connect the cable.
If the latch is broken, replace the cable.
□ Make sure the cable has not bent
Check the cable routing.
If the cable has bent tightly or has any damage, replace the cable.
□
Make sure the cable has compliance with the standards
Check whether it conforms to the cable specification which can connect this product.
If it is not so, Replace to a proper cable.
See also “8. Network Cables”
□
Make sure a tip of the cable is not dusty or not broken.
Check a tip of the cable.
If it has broken, replace the cable.
If it is dirty or any dust sticks, Remove the dust or clean a cable of the cable.
Check the SFP+ module (as optical interface)
□ Make sure the SFP+ module is NE3108-005
Check the SFP+ module.
If it is not used NE3108-005 Optical module for 10GBASE SR, it cannot support.
□ Make sure the SFP+ module is inserted firmly.
Check the SFP+ module insertion.
A SFP+ module is inserted in a slot, without taking down a lever.
When connecting the module, insert the module until you hear a click sound.
□ Check the cable contact of the SFP+ module.
If it is any dust sticks, remove the dust or clean the cable contact.
Important
n Please work after removing SFP+ from a slot.
Avoid direct look into the laser beam.
The “NE3108-005 Optical module for 10GBASE SR” is classified as a Class 1 Laser
Product. A class 1 laser will not be harmful to the human body. However, do not look
directly into the LAN port during operation. Keep any vacant LC connector covered
with a dust cover when you do not use it or you transport it.
Check the link partner (switch, hub, etc.)
□ Check a setting or configuration on the link partner.
Make sure the link partner setting is correct.
If the setting is mis-configured, correct the setting.
If the partner’s port is disabled, enable it.
Check the fan status
CAUTION