Measurement Computing E-PDISO16 - Manual (Page 20)

Chapter 4
Ethernet Troubleshooting
There are typically only two reasons when you cannot attach and communicate with your E-PDISO16. These
are:
! The E-PDISO16 is configured incorrectly, or is operating incorrectly.
! Your network is configured incorrectly. Though the E-PDISO16 is functioning normally, you are
unable to communicate with it.
Though a detailed treatment of debugging your network is beyond the scope of this manual, there are a few
things you can try to determine if the problem you are experiencing is a problem with the board or with your
network configuration. If you are unable to communicate with the E-PDISO16, perform this troubleshooting
procedure to try and identify the problem:
1.
o
o
Check to see if the POWER LED on the E-PDISO16 is on (steady green). The POWER LED indicates that
external power is supplied to the E-PDISO16.
If the POWER LED is off, check the power cable and the socket that the cable is plugged into.
If the cable is good, plugged in, and the power to the socket is on, then the E-PDISO16 is not powering
up correctly. Contact MCC technical support. Refer to
Getting help on page 4-3 for contact
information.
2.
o
o
Check to see if the LINK LED is on (steady green). The LINK LED indicates a valid Ethernet connection
between the E-PDISO16 and the server/hub/switch it is connected to. If the LINK LED is off, check the
following:
Check the Ethernet cable — verify that the Ethernet cable is the correct type, is not damaged, and that
it is connected correctly between the E-PDISO16 and a known functional server/hub/switch (or
connected to your computer if you are connected directly).
If the Ethernet cable is plugged into a wall socket, check with your Network Administrator that the
wall socket is active and that it is connected to an active server/hub/switch.
If you are properly connected to an active server/hub/switch and the LINK LED is still off, there is a
problem with the E-PDISO16. Contact MCC technical support. Refer to
Getting help on page 4-3 for
contact information.
3.
o
o
If your E-PDISO16 is connected to a network, check to see if the ACTIVITY LED is flashing green. The
ACTIVITY LED is an indication of transmitted and received data to and from the network. If the LED is
solid green or not flashing at all, check the following:
If the ACTIVITY LED is solid green, your network’s traffic is at its maximum limit and no
communication is possible. Check with your network administrator.
If the ACTIVITY LED is not flashing at all, there are two possibilities:
Even though the E-PDISO16 is connected to a good server/hub/switch, it is not connected to your
network. An average network has at least some traffic that causes the
ACTIVITY LED to blink. Check
with your network administrator.
If the network administrator verifies the network connection, the E-PDISO16 is not receiving. Contact
MCC technical support. Refer to
Getting help on page 4-3 for contact information.
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