Cisco Cisco 1 GHz GainStar Node インストールガイド
3-2
Balancing and Setup
4042027 Rev A
Preparing for Forward Path Balancing
Before You Begin
Before you begin balancing, it is important to review and understand the following
information. This information will show you which balancing process is appropriate
for your node.
Before balancing, make sure you have configured the node module according to the
specifications in your design print and that the node has warmed up for
approximately one hour. The table below shows the items needed for balancing.
information. This information will show you which balancing process is appropriate
for your node.
Before balancing, make sure you have configured the node module according to the
specifications in your design print and that the node has warmed up for
approximately one hour. The table below shows the items needed for balancing.
You need a ...
To ...
Copy of the design print
Determine expected input and output
signal levels.
Torque wrench with 1/2-inch
socket
Open and close the system node housing.
Spectrum analyzer or signal
analysis meter capable of
working with frequencies up to
the highest design frequency
Determine absolute and relative signal
levels.
Test point probe (part number
1010409)
Access the test points.
Length of 75 ohm coaxial cable
with F-connectors on each end
Connect the test point probe to the test
equipment.