User's Manual

Corning Optical Communications User Manual
|
CMA-601-AEN
|
Page 17
2
2
INSTALLATION GUIDELINES
This chapter provides the general guidelines for installing the
GX dual-band remote and includes information such as site
considerations and installation requirements.
2.1 Site Considerations
• The distance between the GX service antenna and the
coverage area should correspond to line of sight (LOS)
requirements for maximum coverage area.
• The maximum fiber path loss is 6 dB.
• The system delay of the optical system must be taken into
consideration when there are neighboring BTS sites
overlapping in coverage.
• In the MIMO scenario, one MIMO remote unit shall use two
pairs of optic fiber to ensure avoiding system delay.
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 airflow.
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 at temperatures ranging from -40~70 degrees
Celsius and a relative humidity of maximum 95 percent.
2.1.3 Powering
• The power supply unit 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.
• Pluggable equipment — the socket outlet should be installed
near the equipment and be accessible
2.1.4 Grounding Requirement
Verify that the equipment has been well grounded. This
includes GX dual-band unit, external combiner, antennas, and
all cables connected to the system. For GX grounding, use
provided copper wire grounding cable. Ensure lightning
protection for the antennas is properly grounded.
2.1.5 Cable Routing
Ensure all cables, e.g., power cable, feeder cable, optic fiber,
commissioning cable, connecting are properly routed (use drip
loops) and secured so that they are not damaged.
2.1.6 Manual Handling
During transportation and installation, take necessary handling
precautions to avoid potential physical injury to the installation
personnel and the equipment.
2.2 Installation Requirements
• Working space available for installation and maintenance for
each mounting arrangement. Ensure unrestricted airflow.
• Ensure grounding connector is within reach of the ground
wire.
• Ensure a power source is within reach of the power cord and
the power source has sufficient capacity.
• Where appropriate, ensure unused RF connectors are
terminated.