Troubleshooting – ZyXEL Communications ONU-6040B-22 User Manual
Page 7
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7
ONU-6040B-2x Series User’s Guide
The following are dimensions of an M4 tap screw and
masonry plug used for wall mounting. All measurements are
in millimeters (mm).
Troubleshooting
1 The POWER light is not on when I connect power to the
ONU-6040B-2x.
• Check that the power source is turned on.
• You might be using the wrong power adaptor. Use the
included power adaptor only.
• If you are using the correct power adaptor, disconnect
and re-connect the power adaptor to turn on the ONU-
6040B-2x again.
• If the POWER light is still not on, use a different power
outlet.
This manual is related to the following products: