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EQUIPMENT MANUAL FOR RD-9120
RD-9120 QE
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Page 21
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3.2 SITE PLANNING CONSIDERATIONS
Site considerations
The repeater is designed to be waterproof, rainproof, and snowproof. Temporary protection should be
taken when the equipment enclosure is opened for installation or maintenance in an outdoor environment.
The equipment must not be opened for installation or maintenance in bad weather (e.g. gale, storm
rainfall, extreme temperatures and high humidity)
Installation location
Mounting surface shall be suitable to support weight pf the equipment. For RD-9120, it is about 37 kg (82
lb.).
Environmental
Humidity has an effect on the reliability of the equipment. It is recommended to install the equipment in
location having stable temperature and un-restricted air-flow.
RD-9120 equipment has been designed to operate in the ambient air temperature range of -40°C to +55°C
at
≤
95% relative humidity. Should the direct day light temperature exceeds 40°C (104°F), then barrier
device should be installed in to protect the equipment to limit sunlight exposure.
Powering
The power supply unit (PSU) provides power to all modules within the enclosure. The PSU operates at
176 – 264 / 47 – 63Hz, -48VDC or +24VDC. It is recommended that the PSU operate on a dedicated AC
circuit breaker or fused circuit when VAC used for power supply.
In order to avoid electromagnetic interference, select the RD-9120 mounting location to minimize
interference from electromagnetic sources such as: high powered equipment.
Grounding requirement
Verify the equipment has been well grounded, this includes antennas and all cables connected. Ensure
lightning protection for the antennas is properly grounded.
Cable routing
Four cables entries to the equipment: Two co-axial, mains-power and, during communication with the door
opened, 1x RS-232 cable.
Manual handling
During transportation and installation, take necessary handling precautions to avoid potential physical
injury to the installation personnel and the equipment.