started.
The power cable is in loose contact.
power cable of the switch is in good contact.
The status indicator is red.
Fan alarm
Temperature alarm
Power alarm
Fan alarm: Check whether the fan is blocked
or damaged.
Temperature alarm: the switch already stops
the normal service exchanges. Check in time
the working environment of the switch, clean
the dust on the cabinet and reinforce the
refrigeration effect.
Power alarm: the power module problem may
be: 1) The power module is in place but no
power cord is connected. Please power on the
module or remove the unused power module.
2) The power module is faulty. Please replace
a power module.
The serial port console has
no output or outputs
illegible characters.
The serial port connected to the switch
does not match that opened by the
configuration software.
The serial port is not configured
correctly.
Change the serial port opened by the
configuration software to be the one
connected to the switch.
Check that the parameter configuration of the
serial port matches that specified in the
instructions.
The RJ45 port is not in
connectivity or it is
erroneous in
receiving/transmitting
frames.
The connected twisted pair cable is
faulty.
The length of the cable exceeds 100
m.
The port has special configuration that
has no common working mode with the
connected 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
reversely.
The interconnected optical module
type does not match.
The fiber type is not correct.
The length of the optical fiber exceeds
that rated of the optical module.
Switch the Rx and Tx ends of the optical fiber.
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.
The expansion module is The module is not properly installed or Power off, install the module, and then power
