Cisco Cisco 1 GHz GainStar Node Guía De Instalación
Balancing the Forward Path
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Balancing the Forward Path
Introduction
Be sure to use the correct procedure for forward path balancing. Refer to
To Test the
Forward Input Optical Power for help in identifying the procedure that best fits
your system installation and node type.
The forward section of the GainStar Mini Node performs conversion, amplification,
equalization, and test point functions for the forward path signal.
your system installation and node type.
The forward section of the GainStar Mini Node performs conversion, amplification,
equalization, and test point functions for the forward path signal.
To Test the Forward Input Optical Power
Follow these steps to set or adjust input optical power.
1 Clean the input fiber interface.
2 Connect the input fiber connector to check the Optical Power using the LED
1 Clean the input fiber interface.
2 Connect the input fiber connector to check the Optical Power using the LED
indicator. The following diagram shows the different input optical power level
indicated by the lighting status of the LED.
indicated by the lighting status of the LED.
3 Read the input optical power from the LED indicator. The recommended range
is -4 dBm to +2 dBm.
4 Compare the measured levels to the design input levels on the system design
print.
a Proceed to step 5.
b Adjust the Optical Power.
a Proceed to step 5.
b Adjust the Optical Power.
5 Connect the input fiber to the below fiber bulkhead.