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6-27
D-620605-0-20 Rev A
CONFIDENTIAL
Interfacing the Fusion SingleStar to an RF Source
6.5.2
Connecting Multiple Fusion SingleStar Hubs to an RF Source
You can use power combiner/splitters as splitters to connect multiple Fusion Single-
Star Hubs in order to increase the total number of RAUs in a system. You can also use
power combiner/splitters to combine base station channels in order to increase the
number of RF carriers the system transports.
Connecting Multiple Fusion SingleStar Hubs to a Simplex
Repeater or BTS
WARNING:
Only LGC personnel or LGC-authorized installation per-
sonnel should connect the Fusion SingleStar Hub to a base station or
repeater. Exceeding the maximum input power could cause failure of
the Fusion SingleStar Hub (refer to Section 5.2 on page 5-4 for maximum power
specifications). If the maximum composite power is too high, attenuation is
required.
Considerations:
• 2 hybrid power combiner/splitters; one for uplink and one for downlink (2x1 for
two Fusion SingleStar Hubs, 3x1 for three, 4x1 for four, and so on.)
• 1 N-male to N-male coaxial jumper cable between each power combiner/splitter
and the base station
• 2 N-male to N-male coaxial jumper cables between each power combiner/splitter
and each Fusion SingleStar Hub RF Band (either Band 1 or Band 2)
Procedure:
1.
Connect the power combiner/splitters to the repeater or base station using N-male
to N-male coaxial jumper cables:
a.
From the first power combiner/splitter to the repeater or base station
UPLINK
b.
From the second power combiner/splitter to the repeater or base station
DOWNLINK
2.
Connect the power combiner/splitters to the Hubs:
a.
From the first Hub’s
UPLINK
port (Band 1 or Band 2) to the first power com-
biner/splitter
b.
From the first Hub’s
DOWNLINK
port (Band 1 or Band 2) to the second power
combiner/splitter
c.
From the second Hub’s
UPLINK
port (Band 1 or Band 2) to the first power
combiner/splitter
d.
From the second Hub’s
DOWNLINK
port (Band 1 or Band 2) to the second
power combiner/splitter
