Draco tera flex
Troubleshooting
323
12.7.3 Error Indication at the Fiber Port
Fig. 251
LEDs of I/O module fiber
Diagnosis
Possible reason
Measure
LED 1 or LED 2
flashing red
Connections CON Unit, matrix
and CPU Unit.
Check connecting cables and connectors
(cable break, CPU/CON Unit offline).
Connect a 3G extender to a 3G port.
Contact dealer if necessary.
12.8 Blank Screen
Fig. 252
Status LEDs for power supply
1 Status LED for power supply 1
2 Status LED for power supply 2
Diagnosis
Possible reason
Measure
LED 1 and LED 2 off
Power supply
Check the connection to the power network.
Monitors remains dark
after switching
operation
Switching to a port without
connected source (computer,
CPU).
Switch to a Port with a connected source
(computer, CPU).
Connections CON Unit,
matrix, and CPU Unit.
Check connecting cables and connectors (no
cable, cable break, CPU/CON Unit offline,
CPU/CON Unit connected to the wrong port
(see chapter 12.7, from page 322)).
For further measures see user manual of the respective extender series.