Allied Telesis AT-MCF112VF, SM, LH - Manual (Page 32)

22
Troubleshooting
This section contains guidelines for troubleshooting the media converter in
the event a problem occurs.
If the Main LED is OFF, check the following:
" Check to be sure that the power cord for the main power supply is
securely connected to the power supply and the power outlet.
" Check that the power outlet has power by connecting another device
to it.
" Check that the input power source is within the acceptable range. For
AC models, the range is between 100 and 240 VAC.
If an optional redundant power supply is installed but the BCKP LED is OFF,
check the following:
" Check to be sure that the power cord for the redundant power supply
is securely connected to the media converter and the power outlet.
" Press the Reset button on the front of the media converter to reset the
unit.
" Check that the power outlet has power by connecting another device
to it.
" Check that the input power source is within the acceptable range. For
AC models, the range is between 100 and 240 VAC.
If the F-LNK LED for a fiber optic port is OFF, check the following:
" Check to be sure the node connected to the port is powered ON.
" Check to be sure that the fiber optic cable is properly connected to the
fiber optic port.
" Check to be sure that the node connected to the port is operating at
100 Mbps.
" Verify that the maximum allowable loss budget on the fiber optic cable
is within acceptable limits (see Table 4).