SEM910
Troubleshooting
Ethernet Link LED is not on.
Check the power LED on the SEM. Check the Ethernet cable, making sure that it is fully
connected. Check the gender of the Ethernet cable. The SEM can drive CAT5 cable to a
maximum length of 100 meters. If a longer cable length is needed a signal regenerating device
must be placed in line.
Cannot telnet to SEM.
Check the power LED on the SEM. Check the Ethernet cable, making sure that it is fully
connected. Make sure the SEM has a valid, unique IP number on the network. If you are
attempting to telnet to the SEM through a router, make sure that the correct address has been
entered in the routing table. If the telnet security is enabled, make sure a device with an IP
address on the allowed list is being used to initiate the telnet session.
The SEM does not respond through the Console Port.
Check that a straight through serial cable is being used if connected to a PC. If you are not using
WinSEM24, verify that the host serial port is set for 38.4Kbps, 8 data bits, 1 stop bit and no
parity. If you are using a terminal program, make sure that it is set up to transmit carriage returns
when entered from the keyboard. If the console security feature is enabled, the correct password
must be entered at the prompt to gain access to the SEM command line.
Bridges do not link (RF Link LED is not on).
Check that one bridge is configured as a master. Also check that the bridges are set to the same
network number.
Technical Support
Technical Support is available from Cirronet from 8:30am to 5:30pm Eastern Time, Monday
through Friday. Contact Technical Support at (678) 684-2000 or by email at
[email protected].
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2000- 2004 Cirronet
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