User's Manual Part 2

6-14 Common Problems, Troubleshooting, and Frequently Asked Questions
6 Can the LG
Cell
system share the same UTP Category 5 Cable with the
Ethernet network?
No. The LG
Cell
system can use the existing unused cabling inside the building;
however, you cannot use the same cable to connect an RAU and a computer.
7 What is the minimum power input to the Main Hub?
The coverage area of an RAU is directly related to the input down link power
at the Main Hub. Therefore, an input power that generates an output power of
0dBm per channel optimizes the coverage area of an RAU.
8 What is the minimum detectable power of an RAU?
The minimum detectable power of system with 1 RAU is -114 dBm in a 30 kHz
bandwidth, -106 dBm in a 200 kHz bandwidth, and -98 dBm in a 1.25 MHz
bandwidth, without taking into account the processing gain of different access
standards.
9 What is the difference between connecting the LG
Cell
to a roof-mounted
antenna and to a microcellular base station?
Connecting the LG
Cell
to a roof-mounted antenna increases the coverage of the
indoor environment. Connecting the LG
Cell
to a microcellular base station
improves both the coverage and the capacity in the building and might also
provide a private wireless office application for the customer.
10 Does each Main Hub require a separate coaxial feed to the base station?
A typical RF input power per channel to the Main Hub is 0 dBm. This provides
a lot of margin (link budget margin) for interfacing with antennas through a
base station that typically has an output power of 20 dBm. Therefore, a power
combiner/splitter might be installed between the MH and the base station. This
enables one base station to connect to multiple Main Hubs. For details, refer to
Section 2, LGCell Equipment
.