Interfacing a Main Hub to a Base Station or a Roof-top Antenna
7-36
InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620003-0-20 Rev J
Connecting a Duplex Base Station to a Main Hub:
When connecting to a duplex base station, use a circulator between it and the Main
Hub.
You can insert attenuators between the circulator and Main Hub as needed; refer to
Section 6.6.1 on page 6-38
for more information.
1.
Connect an N-male to N-male coaxial cable to the duplex connector on the base
station.
2.
Connect the other N-male connector to a circulator.
3.
Connect an N-male to N-male coaxial cable to the
DOWNLINK
connector on the
Main Hub.
4.
Connect the other end of the N-male coaxial cable to the transmit connector on the
circulator.
5.
Connect an N-male to N-male coaxial cable to the
UPLINK
connector on the Main
Hub.
6.
Connect the other end of the N-male coaxial cable to the receive
connector
on the
circulator.
Figure 7-8
Duplex Base Station to a Main Hub
N-male to N-male
Coaxial Cable
Base Station
Duplex
T1/E1 to
Mobile
Switching
Center
Insert attenuator, if needed
N-male to N-male
Coaxial Cable
Circulator
