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CHAPTER 3: OPERATION
1.
If the LCD screen displays "INTERLOCK", and the red LED is flashing, it means that the RS-232 port at the back
panel is loose.
2.
If RF input level is too high, there will be an alarm (LED flashing red). You should shut off the power, adjust RF input
level to nominal range and then apply power to the transmitter.
3.
+5V voltage (+5V READS) >±0.5V alarm.
-5V voltage (-5V READS) >±0.5V alarm.
4.
If any fault occurred, there will be alarm (LED flashing red). Microprocessor will shut off the laser automatically, and
digital panel will show the reason of the fault.
3-2
Q-Series
Optical – QFCT 1310nm 1 GHz Quality Fiber CATV Transmitter – Installation & Operation Manual
®