Interfacing a Main Hub to a Base Station or a Roof-top Antenna
7-38
InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620003-0-20 Rev J
Attenuation may be required to achieve the desired RF output at the RAU.
9.
Connect an N-male to N-male coaxial cable to the circulator
3
connector.
10.
Connect the other end of the N-male to N-male coaxial cable to the
UPLINK
con-
nector on the Main Hub.
7.6.1
Connecting Multiple Main Hubs
You can use power combiner/splitters as splitters to connect multiple Main Hubs in
order to increase the total number of RAUs in a system. You can also use power com-
biner/splitters to combine base station channels in order to increase the number of RF
carriers the system transports.
Connecting Multiple Main Hubs to a Simplex Repeater
or Base Station
Considerations:
• 2 hybrid power combiner/splitters; one for uplink and one for downlink (2x1 for
two Main Hubs, 3x1 for three, 4x1 for four, etc.)
• 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 Main Hub
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
b.
From the second power combiner/splitter to the repeater or base station
2.
Connect the power combiner/splitters to the Main Hubs:
a.
From the first Main Hub’s
UPLINK
port to the first power combiner/splitter
Roof-top
Antenna
Grounded
Surge Suppressor
Repeater
N-male to N-male
Coaxial Cables
N-male to N-male
Coaxial Cable
N-male to N-male
Coaxial Cable
Circulator
Attenuator (optional)
