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Draco tera enterprise
Troubleshooting
379
14.7.3 Error Indication at the Fiber Port
Fig. 288 Interface side - Link Connection LEDs, Draco tera I/O board,1G and 3G fiber
Diagnosis
Possible reason
Measure
LED 1 or LED 2
flashing red
Connections CON Unit,
matrix, and CPU Unit.
Check connecting cables and ports (cable
break, CPU/CON Unit offline).
Connect a 1G extender module only to a 1G
port.
Connect a 3G extender module only to a 3G
port.
Contact your distributor, if necessary.
14.8 Blank Screen
Diagnosis
Possible reason
Measure
The LEDs of the power
supply units are off.
Power supply voltage.
Check the connection to the power network.
Monitors remains dark
after switching
operation
Switching to a port without
connected source.
Switch to a port with a connected source.
Connections CON Unit,
matrix, and CPU Unit.
Check connecting cables and ports (no
cable, cable break, CPU/CON Unit offline,
CPU/CON Unit connected to the wrong port,
see chapter 14.7, from page 378).
For further measures see user manual of the respective extender module series.