Ruijie RG-S5000-24GT4MS-E - Page 40

Hardware Installation and Reference Guide Troubleshooting
37
switch, clean the dust on the cabinet and
enhance cooling.
The serial port
console has no output
or outputs illegible
characters.
 The serial port connected to the
switch is different from that
enabled on the configuration
software.
 The serial port is not configured
correctly.
 Change the serial port enabled on the
configuration software to the serial port
connected to the switch.
 Check that the serial port parameter settings
are consistent with the serial port
configuration description.
The RJ45 port cannot
be connected or an
error occurs in the
transmission and
receiving of frames.
 The connected twisted pair cable
is faulty.
 The cable length exceeds 100 m
(328.08 ft).
 The port is specially configured
and does not use the same work
mode as the interconnected
switch.
 Replace the twisted pair cable.
 Check that the port configuration has the
common working mode with the connected
switch.
The fiber port cannot
be connected.
 The Rx and Tx ends are
connected incorrectly/reversely.
 The types of the interconnected
optical modules do not match.
 The optical fiber type does not
meet requirements.
 The optical fiber length exceeds
the allowed length marked on the
optical module.
 Switch the Rx and Tx ends of the fiber-optic
cable.
 Replace the optical module with one of the
matched type.
 Replace the optical fiber with one of the
appropriate type.
 Replace the optical fiber with one of the
appropriate length.