User's Manual

• Operating Temperature Range
-30 °C (-22 °F) to +60 °C (+140 °F)
This is the temperature measured in close proximity to the repeater. For example, if the repeater is
mounted in a cabinet, the temperature within the cabinet is measured.
• Humidity
Repeater to be kept at or below RH of 95%, non-condensing at 50 °C (122 °F).
• Air Quality
For equipment operating in an environmentally controlled environment with the repeater(s) rack
mounted, the airborne particulates level must not exceed 25 µg/m³.
For equipment operating in an area which is not environmentally controlled (repeater(s) cabinet
mounted), the airborne particulates level must not exceed 90 µg/m³.
12.1.3
Equipment Ventilation
The SLR 5000 Series Repeaters are equipped with cooling fans that are used to provide forced
convection cooling. When planning the installation, observe the following ventilation guidelines:
12.1.3.1
Mounting in a Cabinet
• Cabinets must be equipped with ventilation slots or openings in the front (for air entry) and back or
side panels (for air to exit). If several repeaters are installed in a single cabinet, be sure ventilation
openings surround each repeater to allow for adequate cooling.
• All cabinets must have at least 15 cm (6 in.) of open space between the air vents and any wall or
other cabinets. This allows adequate air flow.
• When multiple cabinets (each equipped with several repeaters) are installed in an enclosed area,
make sure the temperature within each cabinet does not exceed the recommended/maximum
operating temperature of +60 °C (+140 °F). It may be necessary to have air-conditioning or other
climate-control equipment installed to satisfy the environmental requirements.
CAUTION:
• The mounting of only ONE REPEATER PER CABINET is recommended. More than one
repeater per cabinet results in degradation of thermal specifications at high ambient
temperatures.
• Appropriate precautions should be taken to ensure that repeater ambient temperature does
not exceed +60 °C (+140 °F).
• If multiple repeaters are required, AND THERMAL SPECIFICATION DEGRADATION IS
ACCEPTABLE, the following is recommended when no cabinet fans are used. Up to three
repeaters can be mounted in a 76.2 cm (30 in.) or larger cabinet with two rack units of
spacing between each repeater. This results in thermal specification performance of
-30 °C (-22 °F) to +40 °C (+104 °F).
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Chapter 12: SLR 5000 Series Installation
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