User Manual

50
Procedure 1-6
Power ON and Visual Checking the LED Operation
Action
Step Action
1. Make sure that you know what each one of LED Lights means for the
unit. Please refer to the LED indicators in Page
2. Turn ON the HFC Power Supply.
3. Check if the LED operation follows the pre-defined steps during and
after booting.
4. Refer to the System Failure Analysis Procedure in the next page
5. Check if the LED 1(Power) is ON.
Note: If there is no LED light, check if the power supply which provides
the CATV (HFC) network with AC power (45 ~ 95VAC) signal is
working properly and that the CATV power is detected at the end of the
coaxial cable. (If any problem has been found in the power system, the
unit has to be entered into a Repair Process)
6. Check if LED 2(CM Link) flashes for over 100 seconds from when
power is first supplied.
If the LED flashes for more than 100 seconds, check if the data signal
level at the monitoring port on the APU meets the recommended
range of the signal level.
WLAN Cable Access Point 6220 NTPM99CA Rel 1.0 Issue 1 Oct. 2004