Instruction manual

Installation & Setup
13
Precis LT Instruction Manual
Installation & Setup
Site Recommendations
When placing the enclosure, follow the recommendations and precautions in this section to reduce
potential installation and operation hazards.
Environment
 Choose a clean, dust free, (preferably) air-conditioned location.
 Avoid areas with direct sunlight, heat sources, or high levels of EMI
(Electromagnetic Interference).
 To make control panel operation easier, mount the enclosure with the control panel in the rack
at eye level.
Chassis Accessibility
Make sure the front is accessible, so that you can monitor the LED indicator. Leaving adequate clearance
at the rear will also allow for easier cabling and service.
Power
The source’s electrical outlet should be installed near the router, easily accessible, and properly
grounded. Power should come from a building branch circuit. We recommend using a dedicated line for
the system’s power. Use a minimum breaker current rating of 15 A for 110 V or 30 A for 230 V.
To avoid an overload, note the power consumption rating of all the equipment connected to the circuit
breaker before applying power.
General Hazard Precautions
These recommendations address potential hazards that are common to all installations:
Elevated Operating Temperature
The maximum rated ambient temperature for Precis LT enclosures is 110° F (43° C).
All equipment should be installed in an environment compatible with the manufacturer’s maximum
rated ambient temperature. In a closed or multi-unit rack assembly, the operating ambient temperature of
the rack environment may be greater than the ambient room temperature.
Caution: To protect the equipment from overheating, do not operate in an area that exceeds
110° F (43° C) and follow the clearance recommendation below for adequate airflow.
Airflow Restriction
Precis LT enclosures are designed to adequately dissipate the heat they produce under normal operating
conditions; however, this design is defeated when high-heat producing equipment is placed directly
above or below an enclosure.
Caution: To prevent overheating, avoid placing high-heat producing equipment directly above or
below the enclosure. The system requires a minimum of one empty rack unit above and below.
Mechanical (Rack) Loading
When installing equipment in a rack, distribute the weight to avoid uneven mechanical loading.