User's Manual

Table Of Contents
MobileAccessGX Installation and Configuration Guide 8
2
2
S
S
y
y
s
s
t
t
e
e
m
m
I
I
n
n
s
s
t
t
a
a
l
l
l
l
a
a
t
t
i
i
o
o
n
n
This chapter describes the installation procedure for the MobileAccessGX Remote Units.
2.1 Site Considerations
The distance between the GX service antenna and the coverage area should correspond to
LOS (Line of Sight) requirements for maximum coverage area.
The maximum fiber path loss is 6dB.
The system delay of the optical system must be taken into consideration when there are
neighboring BTS sites overlapping in coverage.
When the GX remote unit is deployed with units supporting the 800MHz band, an external
filter is needed to be installed on the GX to avoid the disturbance between the 800MHz DL
and the 850MHz UL frequencies. See section Error! Reference source not found..
In the MIMO scenario, two remote units shall use a pair of optic fiber for each one. This
ensures to avoid the system delay difference between two units.
2.1.1 Installation Location
Mounting surface shall be capable of supporting the weight of the equipment.
In order to avoid electromagnetic interference, a proper mounting location must be selected to
minimize interference from electromagnetic sources such as large electrical equipment.
2.1.2 Environmental
Humidity has an adverse effect on the reliability of the equipment. It is recommended to install
the equipment in locations having stable temperature and unrestricted air-flow.
The installation location for the system should be well ventilated. The equipment has been
designed to operate at the temperature range and humidity level as stated in the product
specifications that of temperature ranges from -40~55
o
C and the relative humidity is at most
85%.
2.1.3 Powering
The power supply unit (PSU) provides power to all modules within the equipment. Depending on
the product variant, it is recommended that the PSU operates on a dedicated AC circuit breaker
or fused circuit.
2.1.4 Grounding Requirement
Verify that the equipment has been well grounded. This includes antennas and all cables
connected to the system. Ensure lightning protection for the antennas is properly grounded.