Lantronix
SM4T4DPA Install Guide
33867 Rev. A
Page
22
of
29
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, 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.