Transition Networks SM24T6DPA, Install Manual

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Transition Networks SM24T6DPA Web User Guide
33664 Rev. B https://www.transition.com Page 20 of 26
Troubleshooting Chart
Symptom Action
POWER LED is Off
1. Check connections between the switch, the power cord and the
wall outlet.
2. Contact your dealer for assistance.
Link LED is Off
1. Verify that the switch and attached device are powered on.
2. Be sure the cable is plugged into the switch and corresponding
device.
3. If the switch is installed in a rack, check the connections to the
punch-down block and patch panel.
4. Verify that the proper cable type is used, and its length does not
exceed specified limits.
5. Check the adapter on the attached device and cable connections
for possible defects. Replace the defective adapter or cable if
necessary.
Troubleshooting Power and Cooling Problems
Installation
If the power indicator does not turn on when the power cord is plugged in, you may have a
problem with the power outlet, power cord, or internal power supply. However, if the unit
powers off after running for a while, check for loose power connections, power losses or
surges at the power outlet. If you still cannot isolate the problem, the internal power supply
may be defective. Verify that all system components have been properly installed. If one or
more components appear to be malfunctioning (such as the power cord or network cabling),
test them in an alternate environment where you are sure that all the other components are
functioning properly.
In-Band Access
You can access the management agent in the switch from anywhere within the attached
network using Telnet or a web browser. However, you must first configure the switch with a
valid IP address, subnet mask, and default gateway. If you have trouble establishing a link to
the management agent, check to see if you have a valid network connection. Then verify
that you entered the correct IP address. Also, be sure the port through which you are
connecting to the switch has not been disabled. If it has not been disabled, then check the
network cabling that runs between your remote location and the switch.
NOTE : The management agent accepts up to four simultaneous Telnet sessions. If the
maximum number of sessions already exists, an additional Telnet connection will not be able
to log into the system.