Specifications

Chapter 5 Monitoring and Diagnostics Installation and Operation Manual
5-10 17BTroubleshooting Optimux-34 Ver. 2.81
5.3 Troubleshooting
In case a problem arises, check the displayed indications and using this section
and the
Optimux-34 Front Panel Controls table attempt to interpret and solve.
Identify the trouble symptoms and perform the actions listed under "Corrective
Measures" in the order given in
Table 5-4 , until the problem is solved.
Table 5-4. Troubleshooting Chart
Trouble Symptoms Probable Cause Corrective Measures
Optimux-34 is "dead". No power Check that both ends of the power cable are properly
connected.
Blown fuse 1. Disconnect the power cable from both ends.
2. Replace the fuse with another fuse of the same rating.
Defective Optimux-34 Replace Optimux-34.
One of the PWR LEDs is
red.
Power connection Check the connection of the power cable.
Blown fuse. Replace the fuse with another fuse of the same rating.
Defective power supply If the PWR LED is still RED, have the Optimux-34 repaired
as soon as possible.
The LINK SYNC LOSS LED
is ON
Defective Optimux-34 1. Set the clock source to INT.
2. Loop the link connection with a short fiber / coax.
3. If the LED is still ON replace the link.
4. If the LED is still ON have the Optimux-34 repaired.
External problem Check the link connections. Use loopback connections to
isolate the faulty unit (see
Loop Connections on page 5-7 ).
The LINK AIS LED is ON External problem The remote equipment connected to the E3 link of
Optimux-34 sends an AIS sequence. Check the remote
equipment.
Defective Optimux-34 1. Set the clock source to INT.
2. Loop the link connection with a short fiber/coax.
3. If the LED is still ON have the Optimux-34 repaired.
All the units connected
to a local Optimux-34 do
not receive signal from
the remote equipment.
External problem
1. Activate the E3 local loop on the Optimux-34.
2. Check that all the SYNC LOSS and AIS indicators turn
OFF, and that the equipment connected to the local
channels receives their own transmissions.
3. If the indicators turn OFF, the problem is external.
Troubleshoot the remote unit, and the E3
transmission path.
Defective Optimux-34 Replace Optimux-34