Cisco Cisco 1 GHz GainStar Node Installation Guide
Chapter 3 Balancing and Setup
48
OL-31947-02
Setting OMI for Reverse Path Transmitter
To Set Up the OMI for Reverse Path Transmitter
Follow these steps to setup OMI for the reverse path transmitter.
1 Consult the system design print to get the proper OMI levels.
When the GainStar Mini Node is powered on, the green LED will light.
2 Insert the test probe into the test point.
3 Test the signal level at the maximum frequency of the reverse path.
4 If the measured level is 20 dBmV, the corresponding OMI of the reverse
3 Test the signal level at the maximum frequency of the reverse path.
4 If the measured level is 20 dBmV, the corresponding OMI of the reverse
transmitter is 10%. OMI can be changed by adjusting the reverse output pad. See
the chart below.
the chart below.
5 Remove the test probe from the test point.
dBmV